S 420 (140.043) V8-4.2L (119.971) (1994)
Head Rest: Technical Service Bulletins
Seat - Head Restraint Modification
REF. NO. 91/53
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: May 1994
SUBJECT:
MODELS 124, 140 (EXCEPT COUPE AND CABRIOLET) FRONT SEAT HEAD RESTRAINTS
As of November 1993, in the course of standardization, front seat head restraints (1, Figure 1) with posts reduced in length by 30 mm are being installed.
At the same time, the adjustment range of the head restraint guide rail (B, Figure 2) in the front seatback frame was reduced.
The PDC's will only supply the front seatback frame with the reduced head restraint guide rail (B, Figure 2).
Repair note:
Should it be necessary to use the previous head restraint in the modified seatback, install the previous head restraint guide rail (A, Figure 2) into the
modified seatback as well. This must be done as the installed front seat head restraint will otherwise not retract down completely as required.
Parts Information