Contents: Removal ⤓ Installation ⤓
Caution: On vehicles equipped with the Supplemental Restraint System (SRS), review the SRS safety precautions before removing the air bag module.
Removal
To remove the steering wheel and steering shaft, perform the following operations in sequence.
1. Disconnect the cable from the negative terminal of the battery.
2. Remove the lower instrument cluster panel.
Fig. 13.8. Steering wheel and steering shaft: A – vehicles not equipped with SRS system; B – vehicles equipped with SRS system; 1 – protective cover assembly; 2 – bolt (10 Nm); 3 – steering shaft assembly; 4 – Upper steering column cover; 5 – steering column combination switch (cars without SRS); 6 – bolt (25 Nm); 7 – Lower steering wheel cover (cars without SRS); 8 – steering wheel; 9 – nut (42 Nm); 10 – Horn switch cover (cars without SRS); 11 – Sound signal switch; 12 – airbag module; 13 – bolt (7.5 Nm); 14 – steering column combination switch assembly with clock spring; 15 – lower steering column cover; 16 – bolt (17 Nm); 17 – clamp
3. Remove cover 10 (Fig. 13.8) of the horn switch (vehicles without SRS).
4. Disconnect the wires and remove the airbag module 12 (vehicles with SRS).
5. Disconnect the wires and remove the horn switch 11 (vehicles without SRS).
6. Unscrew the steering wheel mounting nut, mark the relative positions of the steering wheel and shaft and, using special tool MB 990803, remove the steering wheel.
7. Remove the lower cover 7 of the steering wheel (vehicles without SRS).
8. Remove the upper cover 4 of the steering column.
9. Remove the lower cover 15 of the steering column.
10. Disconnect the wires and remove the steering column combination switch 5 (vehicles without SRS).
11. Disconnect the wires, unscrew the three screws and remove the steering column combination switch 14 together with the clock spring.
12. Loosen the bolt at the bottom of the steering shaft and remove the steering shaft 3 as an assembly.
13. Remove clamp 17.
14. Remove the protective cover 1 as a whole.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Fig. 13.9. Sequence of tightening the screws for fastening the steering column combination switch assembly with the clock spring
1. Install the steering column combination switch assembly with the clock spring and secure with two screws, tightening them in the sequence shown in Fig. 13.9.
2. Install the lower instrument cluster panel.
3. Check the center position of the steering wheel and front wheels.