Seat - Front Backrest Frame Spring Modified

TO: OUR MERCEDES-BENZ PASSENGENGER CAR DEALERS


DATE: April 1986 REF.NO. 91/35

SUBJECT: MODIFIED FRONT SEAT BACKREST FRAME SPRING ADDITIONAL SPRING MODIFICATION-ORTHOPEDIC BACKRESTS ONLY MODEL 126


As of model year 1984, due to the introduction of the power front seats with memory function, a modified spring has been installed in the center of the spring core of the backrest frame.

When ordering a backrest frame as a replacement, only the modified version is available. The modified version may be installed in vehicles prior to model year 1984.

NOTE: Only for vehicles built prior to model year 1984, and equipped with orthopedic backrests, the following backrest frame modification must be performed.

Figure 1 - Models 126.03 & 120:

Figure 2 - Model 126.04:

Procedure

1. Cut the center spring in the middle (arrow) as shown in Figures 1 and 2.

Figure 3 - Models 126.03/120:

Figure 4 - Model 126.04:

2. Proceed by bending the new ends of the spring and fastening them to the vertical springs with one clamp each, part no. 123 914 03 53 (arrows, Figures 3 & 4).

NOTE: This modification will assure trouble-free operation of the orthopedic padding on models equipped with orthopedic backrests.
Parts Information

Part Name Part Number Model


Backrest frame with spring core 126 910 46 34 126.03/120
Backrest frame with spring core 126 910 45 34 126.04

Clamps (two per backrest) 123 914 03 53 all


Time Allowance

02-9120/50/70 Front Seat Backrest Spring, Cut, Modify and Fasten 0.3 hour
(with maintenance or repair work)