Steering Column Casing Tube

Preliminary Work
Removal and installation of the steering column (casing tube No. 1 with steering shaft No. 2) include removing and fitting the following parts:
- Steering wheel
- Contact unit A
- Steering column switch B
- Heating and fresh air regulator
- Car radio
- Knee protector strip
- Steering lock No. 18
- Central Information System

Removal

1. Disconnect the ground wire of the battery and cover the terminal or battery.
2. Remove steering wheel. Service and Repair
- Observe the safety instructions for handling airbag vehicles, refer to Air bags and Seat Belts.

NOTE:
- To prevent unintended rotation of the contact unit (KE) when the steering wheel has been removed, the contact unit locks itself when the steering wheel is pulled back.
- Automatic unlocking of the contact unit also occurs when the steering wheel is put on.





3. Detach and remove trim of steering column switch.
4. Remove steering column switch with contact unit.
5. Remove left and right side vents.
6. Remove the radio and retaining bracket.
7. Remove the heating and fresh air regulator and the retaining bracket.

NOTE: There is a screw connection below the retaining bracket and side vents for fastening the knee protector strip.

8. Remove ashtray.
9. Remove knee protector strip.
10. Remove the Central Information System.
11. Remove steering lock.





12. Detach shear bolts No. 6 from the casing tube (drill out).
- Also undo fastening screws at the bottom (arrows).

NOTE:
- Do not detach the lower universal joint and steering shaft from the steering gear.
- This avoids the necessity of renewed wheel alignment (same steering wheel position as before).





13. Remove snap ring No. 7.
- Remove the following:
Shim No. 40
O-ring No. 41
Adjusting shim No. 8.
14. Carefully pull the casing tube off the steering shaft.
- If necessary, assist by tapping with a plastic hammer.

Installation

1. Fit steering outer tube (drive it onto the steering shaft).
- Tighten shear bolts and lower fastening screws only hand-tight.





2. Fit the following:
- Adjusting shim No. 8
- O-ring No. 41
- Shim No. 40
- Snap ring No. 7.
- Ensure that shim No. 40 is fitted in the correct position.
3. Perform the remaining installation steps in reverse order of removal.
- This procedure is identical to the Steering Column Assembly installation procedure from Step 4 (from fitting the ignition steering lock) to Step 14 (to the end).