Mercedes Benz S 550 4MATIC Technical Problem #LI91-10_P-053443 Date: 120403 Interior - Noises From Seat Rail Noises from seat rail / seat fore/aft adjustment

Mercedes Benz S 550 4MATIC  Technical Problem #LI91-10_P-053443 Date: 120403
Interior - Noises From Seat Rail
Noises from seat rail / seat fore/aft adjustment
Topic number LI91.10-P-053443
Version 1
Design group 91.10 Front seats
Date 04-03-2012
Validity Model series 221
Reason for change
Complaint:
Tearing or creaking noises from the seat rail / seat fore/aft adjustment of the front seats. This complaint occurs especially on rough roads and when
cornering.
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968)    Page 45
Cause:
Contact between upper and lower rail at rear end of tunnel-side seat rail / seat fore/aft adjustment.
Insufficient lubrication of the door-side rail.
Remedy:
Regreasing of seat rail / seat fore/aft adjustment.
1) Move seat up and to the front (see Figure 1).
2) Use a brush to apply grease (A 002 989 07 51) to lower rail on tunnel side in the area shown (see Figure 2) and spread the grease film to the
end of the seat rail (see Figure 3).
3) Thoroughly clean upper and lower areas (see Figure 4) of door-side rail and apply grease (A 002 989 07 51) with the aid of a brush.
In warmer regions use grease A 000 989 38 60.
Attachments
Symptoms
Parts
Work units
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968)    Page 46
Attachment 1
Attachment 2
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968)    Page 47
Attachment 3
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968)    Page 48
Attachment 4