CLK 350 (209.356) V6-3.5L (272.960) (2008)
Seat Back Frame: All Technical Service Bulletins
Interior - Creaking From Seat Back Rest
DTB
Date:
September 26, 2008
Order No.:
P-B-91.25/158a
Supersedes:
P-B-91.25/158 dated May 19, 2008
Group:
91
SUBJECT: Model 216.371/376/377/379/386
Model 221.171/176/177/179/186
Equipped with Dynamic Seats (Code 432)
Venting Noises from Dynamic Seat Backrest
If you receive customer reports in the above model vehicles of venting noises from the seat backrest when the dynamic seat function is active, this may
be caused by the filter element in the air outlet of the valve units in the dynamic seat system modules (Figure 1, arrow).
To resolve, perform the following.
1. Remove dynamic seat control unit as per WIS document AR91.25-P-1900SX.
2. Cut a piece of felt strip 120 mm in length. Attach or glue felt strip to the right side of the existing felt strips (Figure 2). Ensure there is an overlap
of 5 mm (Figure 3).