Clockspring Assembly / Spiral Cable: Service and Repair

WARNING: Review Service Precautions. Improper handling could cause activation of the airbag(s) and lead to injuries!





REMOVE THE STEERING WHEEL
- Disconnect battery and cover negative pole or terminal.
- A waiting period of approximately 5 minutes should be observed before beginning electrical work to allow the capacitor charge to dissipate.
- Remove lower steering column trim section.





- Disconnect plug connection for airbag (orange).





- Unscrew Torx screws from rear of steering wheel.





WARNING: Lay airbag unit to one side (in the luggage compartment). Padded side must always face up.

- Disconnect electrical connector and remove airbag unit.





- Turn the steering wheel to straight ahead position (marks on steering gear and steering spindle aligned).
- Unscrew and remove the nut with washer.





NOTE: Loosening the nut will activate spring lock (1) which holds the contact ring in center position.

- Turn ignition switch "On" to unlock steering column.
- Pull off steering wheel.





REMOVE AND INSTALL CONTACT RING
Remove
- Pull off casing.





- Mark position of the circlip to the hub.
- Unscrew three studs.
- Press the circlip down, turn and remove it.

Contact Ring R&R:

- Lift out lock (1) with a screwdriver.

Contact Ring R&R:

- Disconnect plug.
- Unscrew the screws (1) and take off the contact ring.





NOTE: A new contact ring is held in the center position with a screw. Remove this screw after screwing the contact ring on the steering wheel.

Contact Ring R&R:

Install
- Place contact ring on steering wheel.
- Insert horn cable through rectangular aperture.
- Secure screws with paint.
- Reconnect cable.





- Connect the spring on the lock and insert it in the bore.
- Press the lock down until it engages.





- Place the circlip in the hub, turn and pull it up.
- The studs must be in the openings of the circlip.





- Lubricate the horn slip ring with grease.
- Reinstall the casing.

INSTALL THE STEERING WHEEL
- Install the steering wheel in reverse order of removal.








NOTE: Adjust Contact Ring Center Position If Necessary: Press down spring (1), turn the contact ring against the left or right stop and then turn it back about 3 turns until the arrow marks for the center position are aligned. Now release spring (1).





- Lock pin (1) must engage in opening (2).
- Install new self-locking nut and torque to 80 Nm (60 ft lb).
- Reconnect lead to airbag unit.
- Place airbag unit on the steering wheel and hand tighten the retaining screws.

CAUTION: Be careful not to pinch the airbag wire.

- Using special tool 88 88 6 110, first tighten the screw on right side of the steering wheel to 8 Nm (6 ft lb) then tighten the left screw to 8 Nm (6 ft lb).

CAUTION: Failure to tighten these screws in this sequence may allow the airbag module to be centered improperly on the steering wheel, which will increase horn button application forces noticeably.

- Reconnect (orange) plug connection and install lower steering column casing section.
- Reconnect NEG. battery terminal.
- Check for possible defect codes and clear if necessary.