Clockspring Assembly / Spiral Cable: Service and Repair

WARNING : Read through the Safety and handling instruction before starting work.




Removal
1. Disconnect the negative lead from the battery.

CAUTION : The engine must not be running when the battery lead is disconnected. The alternator may be seriously damaged.

2. Remove the rubber plugs from the airbag securing screws.
3. Remove the two securing screws holding the steering wheel airbag.
4. Lift out the airbag and unplug the connector.
5. Position the wheels directly forward. Release the horn connector in the steering wheel. Remove the steering wheel (M22).
6. Remove the steering column covers.
7. Unplug the horn connector.
Cut the cable tie and unplug the contact roller connector.
8. Remove the two screws securing the contact roller and lift it out.

CAUTION : The contact roller is fragile. Handle with care.





Installation
1. Fit the contact roller as follows:
Remove the transport protection if any.
Fit the contact roller in the holder.
Plug in the airbag connector (orange) and the horn connector.
Fasten the connectors and leads to the steering column using a cable tie.
Fit the upper steering column cover and then the lower one (4 screws). Make sure that the leads to the contact roller are not pinched by the cover's center retaining screw.

1a. Set the contact roller center position as follows:
Check that the wheels are positioned straight forward.
Rotate the contact roller counter clockwise to the end position. Then rotate it half-way back, that is to say 2.5 turns.

2. Fit the steering wheel as follows:
Push the leads through the hole.
Set the steering wheel position at the same time as the contact roller is set to the steering wheel.
Fit the steering wheel nut.
Tightening torque: 30 Nm (22.1 ft lb) Plug in the horn connector.
3. Fit the airbag connector.
4. Fit the airbag.
Tightening torque: Airbag screws 7.0 Nm (5.2 ft lb).
5. Fit the rubber plugs over the screws.
6. Connect the negative battery lead.
7. Plug in ISAT to the data link connector and erase any diagnostic trouble codes.
Switch on the ignition and wait for at least 10 seconds with the ignition on. Check that the SRS lamp lights for 3-4 seconds and then goes out. Check that the SRS lamp does not show a fault (stays lit).
8. Disconnect the ISAT