Steering column switches, removing and installing
CAUTION:
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Disconnect negative ( - ) battery terminal.
- When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in this article. Refer to Battery, disconnecting and reconnecting .
WARNING:
Special safety precautions apply to vehicles equipped with airbags. Refer to 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS .
Removing
- Pull out steering column as far as possible and tilt downward.
- Center steering wheel in straight ahead position.
- Remove steering wheel with airbag unit.
Refer to 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS
- Remove driver's storage compartment.
Refer to 68 - INTERIOR EQUIPMENT
- Remove screws -1- and remove handle for steering column adjustment -5-.
- Remove screws -2...4-.
- Detach upper and lower steering column trim sections.
- Disconnect electrical connections -1- and -2-.
- Confirm straight ahead position of steering column and front wheels.
- Yellow dot must be visible in hole -arrow 1- and two marks -arrows- must be aligned as illustrated.
- Secure spiral spring with slip ring in center position with adhesive strip -arrow-.
- Carefully release upper fasteners -arrows-.
- Carefully release lower fasteners and detach housing of spiral spring with slip ring and steering angle sensor from steering column switch.
- Loosen clamp bolt -arrow- until steering column switch can be removed.
- Disconnect electrical connections at steering column switch.
Installing
Install in reverse order of removal, noting the following:
- Slide housing of spiral spring with slip ring and steering angle sender onto steering column switch until all fasteners are heard to engage.
- Remove adhesive fastening strip or remove transportation seal in case new component is installed.
- Confirm steering angle sensor centered:
- Yellow dot must be visible in hole -arrow 1- and two marks -arrows- must be aligned.
- Install steering wheel and airbag unit.
Refer to 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS
- On vehicles with ABS/ESP Mark 20, perform OBD function 04 - Basic setting for steering angle sensor -G85-.
Refer to 01 ON BOARD DIAGNOSTIC (OBD) .
- On vehicles with ABS/ESP Mark 60, perform OBD function 04 - Basic setting for steering angle sensor -G85- and perform ESP test drive (basic setting 093)
Refer to VAS 5051/5052 in operating mode "Guided Fault Finding".