Steering column end cap installation details for models produced up to 30.06.02 (1 of 2)
2 - Lower section of instrument panel trim; 3 - Headlight adjustment switch; A45 - Contact cable drum; S4 - Assembly of steering column switches; S40/4 - Cruise control switch; S93/2 - Right steering column switch
Installation details of the steering column end cover, production up to 30.06.02 (2 of 2)
4 - Electrical wiring connectors; 5 - Cylindrical casing; 6 - Mounting bolts; 7 - End cap; N73 - EIS/EZS Module
Installation details of the end cover of the steering column of the release from 01.07.02
8 — Assembly of steering column switches
9 — Clamping screw
1. Turn the steering wheel to the straight-ahead position.
2. On models with the corresponding configuration (code ET2), activate the service mode of the TELE AID emergency call system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
3. Turn on the auxiliary battery and connect it to the standard battery, then disconnect the negative cable from the latter.
7 - Auxiliary battery
8 — Positive wire terminal of the module
9 — Terminal of the negative wire of the module
W10 - Battery ground
4. Remove the steering wheel (see Chapter Suspension and steering).
5. Remove the left lower section (2) of the instrument panel trim (see Section Removal and installation the left lower section of the instrument panel trim).
6. Remove the contact cable drum (A45) of the horn and driver's airbag (see Chapter Suspension and steering).
7. Remove the combination steering column switch assembly (S4 or 8).
8. On models produced up to 30.06.02, disconnect the connectors (4) of the EIS/EZS module (N73) and the instrument panel wiring harness.
9. Remove the instrument cluster (see Section Removal and installation the instrument cluster).
10. On models produced up to 30.06.02, remove the cylindrical casing (5) of the steering column - try to remember the routes of the electrical wiring.
11. Unscrew the bolts (6) and remove the end cover (7) of the steering column.
12. Installation is carried out in the reverse order - if the corresponding configuration (code ET2) is installed, deactivate the service mode of the TELE AID system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
13. Finally, read the DTC codes and clear the on-board diagnostic system memory using the STAR DIAGNOSIS scanner (6511 1801 00) (See Chapter Engine electrical systems) and enter the required basic settings of the on-board equipment.
[Material taken from a web resource MercedesMAN.ru]