300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984)
Seat Back Frame: Technical Service Bulletins
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.