R 350 (251.156) V6-3.5L (272.967) (2008)
Sunroof / Moonroof Interior Trim Panel: Customer Interest
Body - Sunroof Roller Blind Couplings Broken
Date: August 15, 2008
Order No.: T-B-77.20/65
Supersedes:
Group: 77
SUBJECT:
Model 251.122/125/156/165/175/177
Top Sliding Roof Roller Blind Couplings Broken At Roller Blind
If you receive customer reports in the above model vehicles that the roller blind couplings are broken at the roller blind, this may be caused by the
journal of the roller blind shaft becoming bonded to the adhesive tape (Figure 1 and 2). When the roller blind is opened, the drive cable travels upward
and the roller blind does not roll up causing it to become detached at the adhesive tape. The roller blind couplings may break.
To resolve, remove the adhesive tape and install new roller blind couplings. Refer to WIS document AR77.21-P-0221RT for roller blind couplings
replacement. The design of the roller blind couplings has since been modified for increased rigidity and reinforcement at the adjustment screw.