Lift and slide panel
Cleaning the guide rails and pads
1. Open the sunroof panel completely.

2. Clean the guide rails and sliders with a rag.
3. Close the roof.
Panoramic glass roof with external sliding panel
Cleaning and lubricating the guide mechanism
1. Lubricate the outer guide rails. To do this, apply one drop of lubricant to the guides in three places at equal distances.
2. Open the sliding panel until the lever drops.
3. Clean the cover guides with a cloth and lubricate with sliding paste.
Note: The cover guides are shaped like the letter "U".
4. Open the sliding panel completely.
5. Clean the outer, lower and inner, upper channels with a rag. Lubricate the sliding surfaces with paste.
[Original source of information: www.mercedesman.ru]
6. Clean the gear shifters with a cloth and lubricate the sliding surfaces with paste.
7. Clean the wind deflector lever with a rag and lubricate the sliding surface with paste.
8. Close and open the sliding panel several times. At the same time, check the correct functioning of the sliding panel mechanism.
9. Remove excess grease.
