We offer a seal kit / repair kit for the top hydraulic cylinder A1708000072 / 1708000072 / 170 800 0072 (front lock cylinder) used in Mercedes SLK R170 models. This repair kit includes the shaft collar that is needed to reattach the piston rod to the rod mount.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The shaft collar and the set screws are made out of 1.4404 / V4A / AISI 316L stainless steel that has superior corrosion resistance compared to standard V2A / AISI 304 stainless steel. The rod seals and metal parts are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Installation instructions:- Removing the old shaft collar: Remove the snap ring at the end of the hydraulic cylinder where the piston rod exits the cylinder housing by prying it out. After that, the piston rod can be taken out of the cylinder. The factory shaft collar that is used to attach the piston rod to the rod mount is staked into place. Use a 3mm/3.5mm metal drill bit to drill out the staking on both sides of the old shaft collar (we recommend using a drill bit specifically made for hardened steel). After the staking is drilled out completely, remove the old shaft collar and pull the piston rod out of the rod mount. Proceed to remove the old rod seal and install our new seal (see our Installation guidelines for more details). - Installing the new shaft collar: Push the piston rod into the rod mount and hold it there. Take the new shaft collar (without the set screws) and push it onto the end of the piston rod until it is fully seated. Now you can insert both set screws and screw them in using a 2mm hex bit, alternating between the two screws in the process to apply even pressure from both sides (tightening torque: 1.7 Nm / 15 in-lb). It is very important that you push the shaft collar down against the rod mount during the entire process in order to guarantee a tight fit. After ensuring that the shaft collar is positioned tight against the rod mount, you can insert the piston head into the cylinder and reinstall the snap ring. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000072 / 1708000072 / 170 800 0072 (front lock cylinder) used in Mercedes SLK R170 models. This repair kit includes the shaft collar that is needed to reattach the piston rod to the rod mount.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The shaft collar and the set screws are made out of 1.4404 / V4A / AISI 316L stainless steel that has superior corrosion resistance compared to standard V2A / AISI 304 stainless steel. The rod seals and metal parts are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Installation instructions:- Removing the old shaft collar: Remove the snap ring at the end of the hydraulic cylinder where the piston rod exits the cylinder housing by prying it out. After that, the piston rod can be taken out of the cylinder. The factory shaft collar that is used to attach the piston rod to the rod mount is staked into place. Use a 3mm/3.5mm metal drill bit to drill out the staking on both sides of the old shaft collar (we recommend using a drill bit specifically made for hardened steel). After the staking is drilled out completely, remove the old shaft collar and pull the piston rod out of the rod mount. Proceed to remove the old rod seal and install our new seal (see our Installation guidelines for more details). - Installing the new shaft collar: Push the piston rod into the rod mount and hold it there. Take the new shaft collar (without the set screws) and push it onto the end of the piston rod until it is fully seated. Now you can insert both set screws and screw them in using a 2mm hex bit, alternating between the two screws in the process to apply even pressure from both sides (tightening torque: 1.7 Nm / 15 in-lb). It is very important that you push the shaft collar down against the rod mount during the entire process in order to guarantee a tight fit. After ensuring that the shaft collar is positioned tight against the rod mount, you can insert the piston head into the cylinder and reinstall the snap ring. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000272 / 1708000272 / 170 800 0272 (trunk lid cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000272 / 1708000272 / 170 800 0272 (trunk lid cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000372 / 1708000372 / 170 800 0372 (trunk lid cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000372 / 1708000372 / 170 800 0372 (trunk lid cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000572 / 1708000572 / 170 800 0572 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000572 / 1708000572 / 170 800 0572 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000672 / 1708000672 / 170 800 0672 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit for the top hydraulic cylinder A1708000672 / 1708000672 / 170 800 0672 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a complete seal kit / repair kit for the top hydraulic cylinders used in Mercedes SLK R170 models.  This seal kit contains parts to replace the rod seals of the following hydraulic cylinders: 1 x A 170 800 0072 (front lock cylinder)1 x A 170 800 0272 (trunk lid cylinder)1 x A 170 800 0372 (trunk lid cylinder)1 x A 170 800 0572 (main lift cylinder)1 x A 170 800 0672 (main lift cylinder) The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a complete seal kit / repair kit for the top hydraulic cylinders used in Mercedes SLK R170 models.  This seal kit contains parts to replace the rod seals of the following hydraulic cylinders: 1 x A 170 800 0072 (front lock cylinder)1 x A 170 800 0272 (trunk lid cylinder)1 x A 170 800 0372 (trunk lid cylinder)1 x A 170 800 0572 (main lift cylinder)1 x A 170 800 0672 (main lift cylinder) The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a repair kit for the top hydraulic cylinder A1708000072 / 1708000072 / 170 800 0072 (front lock cylinder) used in Mercedes SLK R170 models. This repair kit includes the shaft collar that is needed to reattach the piston rod to the rod mount. The shaft collar and the set screws are made out of 1.4404 / V4A / AISI 316L stainless steel that has superior corrosion resistance compared to standard V2A / AISI 304 stainless steel. The metal parts are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-f (fine) to ensure a high level of accuracy. Installation instructions:- Removing the old shaft collar: Remove the snap ring at the end of the hydraulic cylinder where the piston rod exits the cylinder housing by prying it out. After that, the piston rod can be taken out of the cylinder. The factory shaft collar that is used to attach the piston rod to the rod mount is staked into place. Use a 3mm/3.5mm metal drill bit to drill out the staking on both sides of the old shaft collar (we recommend using a drill bit specifically made for hardened steel). After the staking is drilled out completely, remove the old shaft collar and pull the piston rod out of the rod mount. Proceed to remove the old rod seal and install our new seal (see our Installation guidelines for more details). - Installing the new shaft collar: Push the piston rod into the rod mount and hold it there. Take the new shaft collar (without the set screws) and push it onto the end of the piston rod until it is fully seated. Now you can insert both set screws and screw them in using a 2mm hex bit, alternating between the two screws in the process to apply even pressure from both sides (tightening torque: 1.7 Nm / 15 in-lb). It is very important that you push the shaft collar down against the rod mount during the entire process in order to guarantee a tight fit. After ensuring that the shaft collar is positioned tight against the rod mount, you can insert the piston head into the cylinder and reinstall the snap ring. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit (piston seal) for the top hydraulic cylinder A1708000072 / 1708000072 / 170 800 0072 (front lock cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: The provided seals may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit (piston seal) for the top hydraulic cylinder A1708000572 / 1708000572 / 170 800 0572 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a seal kit / repair kit (piston seal) for the top hydraulic cylinder A1708000672 / 1708000672 / 170 800 0672 (main lift cylinder) used in Mercedes SLK R170 models.  The issue: A lot of Mercedes convertible owners are aware of the well known problem: After a while the hydraulic cylinders responsible for opening and closing the soft top start leaking and do not work properly anymore. The leak occurs when the installed o-rings, rod seals and piston seals wear out to a point that they are not able to withstand the pressure inside the hydraulic cylinder anymore. This is especially noticeable during the summer in warmer regions since the original materials are limited in terms of temperature resistance. What others offer: Most competitors source cheap Polyurethane rod seals (usually green or blue) from China, most of which are of lower quality than the original rod seals which were already limited in terms of service life and heat resistance. Our solution: We wanted more than just a simple and cheap replacement but a solution that incorporated unparalleled longevity and durability. Therefore we developed two kinds of rod seals made from high-tech materials: High-Performance Polyurethane (HPU, red color) as well as heat and wear resistant Viton® (FPM/FKM, brown color). HPU combines excellent mechanical properties with high chemical resistance, exceeding those of standard Polyurethane. Additionally, Viton® has a far greater temperature resistance (from -20°C/-4°F to +204°C/+400°F) and is therefore the preferred material for vehicles in warmer regions. The rod seals and piston seals are CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Seal types: A hydraulic cylinder contains a rod seal, an o-ring (depending on the model, not always installed) and a one- or two-piece piston seal. If the hydraulic cylinder is leaking, you'll need to replace the rod seal (and the o-ring). If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer a complete hydraulic line port seal kit / repair kit for the hydraulic pump (Mercedes part numbers A1708000030 / 1708000030, A1708000048 / 1708000048) used in Mercedes SLK R170 models. These seals are located within the hydraulic ports of the hydraulic pump and consist of a uniquely shaped quad seal and a CNC machined brass support ring to keep the seal in place. The support rings are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-f (fine) and then precision ground to ensure a high level of accuracy.Attention: Special tools are needed for the removal of the old and insertion of the new brass support rings.Attention: Although the seals we offer have a high temperature range, they may only be used with the following types of hydraulic fluid to ensure smooth operation and a long service life:- Genuine Mercedes Benz hydraulic fluid MB 343.0, hydraulic fluids in accordance with standard DIN 51 524, HLP 32 or standard ISO 11158, HM 32

We offer an insertion tool for the hydraulic line port seals used in various Mercedes models. These seals are located inside the hydraulic line ports of the cylinders, the distributors, the valve blocks and the hydraulic pump (depending on the model) and consist of a uniquely shaped quad seal and a brass support ring to keep the seal in place. With this special insertion tool you can install the quad seal and the brass support ring at the correct insertion depth. The insertion tool is made out of heat-treated 1.4034 / X46Cr13 / AISI 420C stainless tool steel that offers high hardness and very good wear and corrosion resistence. It is CNC-milled to our specifications within tolerance class DIN ISO 2768-1-f (fine) in Germany to ensure a high level of accuracy. Attention: The old hydraulic line port seals must be removed with a special extraction tool (product number MJ10522) before the new seals can be installed. Please make sure to cover the entire surface of the new seal with a thin layer of hydraulic fluid before you insert it.

We offer an extraction tool for the hydraulic line port seals used in various Mercedes models. These seals are located inside the hydraulic line ports of the cylinders, the valve blocks, the distributors and the hydraulic pump (depending on the model) and consist of a uniquely shaped quad seal and a brass support ring to keep the seal in place. With this special extraction tool you can remove the brass ring. Attention: In some cases it might be necessary to drill a starter hole into the brass ring using a 3.5mm drill bit before one of the thread forming screws can be inserted. Please make sure not to drill deeper than the height of the brass ring (2.5mm). This extraction tool includes the following parts (Mercedes SL R129): 1 x special thread-forming screw, short - for the distributors, the valve blocks and all hydraulic cylinders except 1298001772 / 1298001872 / 1248000272 (bow extension cylinders) 1 x special thread-forming screw, long - only needed for hydraulic cylinders 1298001772 / 1298001872 / 1248000272 (bow extension cylinders) 2 x spacer - 1 spacer needed for hydraulic cylinders 1298001772 / 1298001872 / 1248000272 (bow extension cylinders), 2 spacers needed for the rear distributor and the valve blocks 1 x washer 2 x nut Brass ring removal instructions (Mercedes SL R129): - The front distributor 1298000022 / all hydraulic cylinders except 1298001772 / 1298001872 / 1248000272 (bow extension cylinders): Remove the tension clips that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the distributor/cylinder. Put the distributor/hydraulic cylinder in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the washer on top of the hydraulic line port whose seal you would like to remove. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. - Hydraulic cylinders 1298001772 / 1298001872 / 1248000272 (bow extension cylinders): Remove the tension clips that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the cylinder. Put the hydraulic cylinder in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the long screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the washer on top of the hydraulic line port whose seal you would like to remove (the lower hydraulic line port opening of the bow extension cylinders requires placing the included spacer on the lower shoulder to level the washer due to the two port openings being too close to each other). Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. - The rear distributor (1298000522 / 1298000622 / 1298000722 / 1298000922), the valve block on the left side (1298000178 / 1298000278 / 1298000778 / 1298000878 / 1298000978 / 1298001578 / 1298001678 / 1298001778 / 1298001878 / 1298001978 / 1298002078 / 1298002378 / 1298002578), the valve block on the right side (1298001178 / 1298002478 / 1298002678) and the valve block (1298000378 / 1298001078 / 1298002178 / 1298002278): Unscrew the brackets that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the distributor / the valve block. Put the distributor / the valve block in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the two spacers on opposite sides of the hydraulic line port whose seal you would like to remove and place the washer on top. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. This extraction tool includes the following parts (Mercedes SL R230): 1 x special thread-forming screw, short - for the hydraulic pump 2308000030 / 2308000088 / 2308000330 / 2308000348 1 x special thread-forming screw, long - not needed for this model 2 x spacer 1 x washer 2 x nut Brass ring removal instructions (Mercedes SL R230): - The hydraulic pump (2308000030 / 2308000088 / 2308000330 / 2308000348): Unscrew the brackets that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the hydraulic pump. Put the hydraulic pump in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the two spacers on opposite sides of the hydraulic line port whose seal you would like to remove and place the washer on top. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. This extraction tool includes the following parts (Mercedes SLK R170): 1 x special thread-forming screw, short - for the hydraulic pump 1708000030 / 1708000048 1 x special thread-forming screw, long - not needed for this model 2 x spacer 1 x washer 2 x nut Brass ring removal instructions (Mercedes SLK R170): - The hydraulic pump (1708000030 / 1708000048): Unscrew the brackets that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the hydraulic pump. Put the hydraulic pump in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the two spacers on opposite sides of the hydraulic line port whose seal you would like to remove and place the washer on top. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. This extraction tool includes the following parts (Mercedes SLK R171): 1 x special thread-forming screw, short - for the hydraulic pump 1718000030 / 1718000184 1 x special thread-forming screw, long - not needed for this model 2 x spacer 1 x washer 2 x nut Brass ring removal instructions (Mercedes SLK R171): - The hydraulic pump (1718000030 / 1718000184): Unscrew the brackets that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the hydraulic pump. Put the hydraulic pump in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the two spacers on opposite sides of the hydraulic line port whose seal you would like to remove and place the washer on top. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. This extraction tool includes the following parts (Mercedes E-Class W124): 1 x special thread-forming screw, short - for the valve blocks and all hydraulic cylinders except 1248000272 / 1248000772 (bow extension cylinders) 1 x special thread-forming screw, long - only needed for hydraulic cylinders 1248000272 / 1248000772 (bow extension cylinders) 2 x spacer - 1 spacer needed for hydraulic cylinders 1248000272 / 1248000772 (bow extension cylinders), 2 spacers needed for the valve blocks 1 x washer 2 x nut Brass ring removal instructions (Mercedes E-Class W124): - All hydraulic cylinders except 1248000272 / 1248000772 (bow extension cylinders): Remove the tension clips that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the distributor/cylinder. Put the distributor/hydraulic cylinder in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the washer on top of the hydraulic line port whose seal you would like to remove. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. - Hydraulic cylinders 1248000272 / 1248000772 (bow extension cylinders): Remove the tension clips that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the cylinder. Put the hydraulic cylinder in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the long screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the washer on top of the hydraulic line port whose seal you would like to remove (the lower hydraulic line port opening of the bow extension cylinders requires placing the included spacer on the lower shoulder to level the washer due to the two port openings being too close to each other). Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw. - The valve block on the left side (1248001178), the valve block on the right side (1248001278) and the roll bar valve block (1248001678): Unscrew the brackets that hold the hydraulic lines in place and pull the hydraulic lines carefully out of the valve block. Put the valve block in a vice with the hydraulic line port openings facing upwards. Now thread one of the nuts onto the short screw until it touches the screw head (some force may be needed at the beginning due to the unique shape of the threads). Place the two spacers on opposite sides of the hydraulic line port whose seal you would like to remove and place the washer on top. Insert the screw through the washer into the brass ring using a Torx T20 screw driver. Proceed to turn the screw driver until the screw is fully seated inside the brass ring (the screw is fully seated either when the nut touches the washer or when the brass ring starts rotating). Now use one hand to hold the screw driver (and the screw) in place while turning the nut clockwise with a 7mm wrench. This will lift the brass ring slowly until it can be fully removed. After that, you can remove the brass ring from the screw by using a pair of pliers and holding onto the outside of the brass ring while unscrewing the screw.