| I just had Dennis Ficken repair 4 hydraulic cylinders on the roof mechanism for my 500SL. I couldn't be happier....they work great and the repair cost was very small compared to buying whole new parts through a MB dealer. Make sure if you replace one leaking cylinder on one side of the car that you also replace the other at the same time ...as hydraulic pressures will soon find the weak spot once a new seal is implemented. | 
