We offer a seal kit / repair kit for the top hydraulic cylinder A1298001672 / 1298001672 / 129 800 1672 used in Mercedes models SL R129 (front lock cylinder) / E-Class W124 (rear bow lock cylinder) / CLK W208 (rear bow lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298001672 / 1298001672 / 129 800 1672 used in Mercedes models SL R129 (front lock cylinder) / E-Class W124 (rear bow lock cylinder) / CLK W208 (rear bow lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298000072 / 1298000072 / 129 800 0072 used in Mercedes models SL R129 (tonneau cover lock cylinder, rear lock cylinder) / E-Class W124 (tonneau cover lock cylinder) / CLK W208 (case cover lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298000072 / 1298000072 / 129 800 0072 used in Mercedes models SL R129 (tonneau cover lock cylinder, rear lock cylinder) / E-Class W124 (tonneau cover lock cylinder) / CLK W208 (case cover lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298001672 / 1298001672 / 129 800 1672 used in Mercedes models SL R129 (front lock cylinder) / E-Class W124 (rear bow lock cylinder) / CLK W208 (rear bow lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298001672 / 1298001672 / 129 800 1672 used in Mercedes models SL R129 (front lock cylinder) / E-Class W124 (rear bow lock cylinder) / CLK W208 (rear bow lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298000072 / 1298000072 / 129 800 0072 used in Mercedes models SL R129 (tonneau cover lock cylinder, rear lock cylinder) / E-Class W124 (tonneau cover lock cylinder) / CLK W208 (case cover lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A1298000072 / 1298000072 / 129 800 0072 used in Mercedes models SL R129 (tonneau cover lock cylinder, rear lock cylinder) / E-Class W124 (tonneau cover lock cylinder) / CLK W208 (case cover lock cylinder). 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 A2088000072 / 2088000072 / 208 800 0072 (top drive cylinder) used in Mercedes model CLK W208. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. A Mercedes CLK W208 hydraulic cylinder contains a two rod seals (consisting of two o-rings and two flat seals) and a one- or two-piece piston seal (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seals. 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 A2088000172 / 2088000172 / 208 800 0172 (bow extension cylinder) used in Mercedes model CLK W208. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. A Mercedes CLK W208 hydraulic cylinder contains a two rod seals (consisting of two o-rings and two flat seals) and a one- or two-piece piston seal (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seals. 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 A2088000172 / 2088000172 / 208 800 0172 (case cover lift cylinder) used in Mercedes model CLK W208. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. A Mercedes CLK W208 hydraulic cylinder contains a two rod seals (consisting of two o-rings and two flat seals) and a one- or two-piece piston seal (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seals. 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 seal kit / repair kit for the top hydraulic cylinders used in Mercedes CLK W208 models. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. This seal kit contains parts to replace the rod seals of following hydraulic cylinders:2 x 208 800 0072 (top drive cylinder)2 x 208 800 0172 (bow cylinder)1 x 208 800 0272 (case cover lift cylinder)1 x 129 800 1672 (bow lock cylinder)1 x 129 800 0072 (case cover lock cylinder)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 seal kit / repair kit for the top hydraulic cylinders used in Mercedes CLK W208 models. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. If the hydraulic cylinder is not able to open and close the soft top properly anymore, you'll need to replace the piston seal. This seal kit contains parts to replace the rod seals of following hydraulic cylinders:2 x 208 800 0072 (top drive cylinder)2 x 208 800 0172 (bow cylinder)1 x 208 800 0272 (case cover lift cylinder)1 x 129 800 1672 (bow lock cylinder)1 x 129 800 0072 (case cover lock cylinder)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 at the pump side used in Mercedes model CLK W208. These seals are located at the end of the hydraulic lines that have to be connected to the hydraulic pump. One seal is needed per hydraulic line.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 hydraulic block 1248001678 used in Mercedes CLK W208 models. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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 hydraulic pump 2088001048 / 2088001748 used in Mercedes CLK W208 models. 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 and rod 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. For this reason we have the rod seals manufactured from affordable polyurethane (AU, red color) as well as heat and wear resistant Viton (FPM/FKM, brown color). Viton has the same mechanical properties as polyurethane, but 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 are CNC-milled to our specification in Germany within tolerance class DIN ISO 2768-1-m to ensure a high level of accuracy. 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 (depending on the model). If the hydraulic cylinder is leaking, you'll need to replace the rod seal. 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