Rebuilding R129 Roof Cylinders: Keeping the SL the Way Mercedes Intended
January 20, 2026By Faraz Ahmad0 Comments
The Mercedes-Benz R129 SL-Class represents an era when Mercedes engineered cars to last. However, time has exposed one of the platform's weak points: hydraulic roof cylinders. At California Auto Store, we work with R129s every day, and for enthusiasts who plan to keep their SL long term, rebuilding the roof cylinders is not a shortcut repair—it's the correct way to restore the system and preserve the car.