Steering Lock with Lock Cylinder - Update/Installation
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERSDate: July 1992
Ref. No. 46/76
Subject:
MODEL 129 AND 140
MODIFIED STEERING LOCK WITH LOCK CYLINDER
Since November 1991 a modified steering column lock is used on models 129 and 140.
^ The lock cylinder is installed while in position 1 instead of position 0. This results in improved theft resistance.
^ The joint (arrow) was altered and the spacer tube (35) and cap (31) are now made of plastic instead of aluminum.
Effective Serial Number - Plastic spacer tube and cap
Model As of Chassis End Number
129 F 048351
140 A 036951
Production Phase-In - Lock cylinder with installation position 1
Model As of
129,140 8/91
Repair procedure
1. Remove lock cylinder with spacer tube (SMS, job 46-0645).
Note:
The lock cylinder can not be removed from the spacer tube. As a result, the spacer tube and the cap must be replaced at the same time.
2. Turn the new lock cylinder (32) to position 1 using key (33).
3. Push lock cylinder (32) into spacer tube (35) until it snaps into place audibly. Turn key (33) back to position 0 and pull Out.
4. Push cap (31) on. As soon as the locking ring (35a) snaps into place, the cap is permanently attached to the spacer tube. As a result, the lock cylinder can no longer be removed.
Note:
This feature is retroactive for all vehicles. The available replacement lock cylinders can only be installed when set to position 1.
Parts Information