C 350 (204.056) V6-3.5L (272.961) (2008)
Seat Belt Retractor: All Technical Service Bulletins
Interior - Rear Seat Belt Rattling Noises
DTB
Date:
October 24, 2008
Order No.:
P-B-91.40/178
Supersedes:
Group:
91
SUBJECT: Model 204.054/056/077/081
Rattling Noises in Rear Caused by Seatbelt
If you receive customer reports in the above model vehicles of rattling noises coming from the rear seatbelt, this may be caused by the sensor inside the
seatbelt retractor. Follow the installation instructions below for additional soundproofing for the left and right rear seatbelts which will minimize the
condition.
NOTE: Illustrations are of the right rear seat belt. The belt end fitting and C-pillar trim have been completely removed for better illustration. Complete
removal is not necessary to install the soundproofing.
1. Detach the trim on left/right C-pillar. Refer to WIS document AR68.30-P-4490CW.
2. Cut the soundproofing for insertion of the belt strap (Figure 1).
3. Align soundproofing with inside of C-pillar trim (Figure 2).
4. Mark excess insulation material on C-pillar trim (Figure 3).