When carrying out work on the airbag, a number of precautions must be observed and followed. The main ones are:
1. Disconnect the battery and wire «masses» (-).
2. Disconnect the power plug under the steering column trim.
3. Do not leave the airbag unit removed unattended.
4. Lay the removed block of an airbag so. so that the impact surface of the pad faces upwards.
5. Disconnect the battery when performing welding work on the vehicle.
6. Replace all airbag components if your vehicle has been in an accident.
Disposal of a car equipped with an airbag is carried out according to special rules.
Steering wheel without air cushion
Withdrawal
7. Remove the horn cover from the holding fingers by pulling it up. Be careful, there are plastic hooks on the left and right sides of the cover (see illustration 14.9).
8. Set the steering wheel to position «locked».
9. Unscrew the nut securing the steering wheel to the steering column with a socket wrench 24 (see illustration).
10. Install the steering wheel so that its spokes are symmetrical and the wheels are straight.
11. Remove the nut and washer.
Installation
When installing the steering wheel, make sure the spokes are symmetrical.
12. Set the steering wheel lock to the position «locked».
13. Tighten the steering wheel nut to the steering column with a torque of 40 Nm.
Steering wheel with airbag unit
Removal and installation of the steering wheel with the airbag unit, we recommend that you do it yourself only if you have the appropriate experience. Otherwise, entrust it to the workshop.
Withdrawal
14. Disconnect the terminal «masses» (-) from the battery.
15. Cars with a diesel engine. Disconnect the plug on the instrument panel on the driver's side by opening the cover on the panel (see illustration).
On vehicles up to 10/92, this plug is located behind the instrument panel on the driver's side (see illustration 14.15a).
16. Turn out bolts of fastening of the block of an airbag on a steering wheel key T 30. Bolts of fastening are located on the right and left sides and unscrew from the back side of a steering wheel.
17. Lift up the block of an airbag and turn it over.
18. Release the airbag plug from the mount
19. Disconnect the airbag plug.
20. Remove the airbag unit and lay it down with the AUDI logo rings facing up.
21. Remove the top part of facing of a steering column.
22. Pull out the connecting plug of the airbag unit by squeezing the leashes of the clamps (see illustration).
23. Disconnect the connector.
24. Remove the steering wheel by following the same steps as when removing the steering wheel without the airbag unit.
Installation
After the steering wheel is secured to the steering column, hand tighten the bolts securing the airbag unit. Then, first tighten the right mounting bolt with a torque of 6 Nm (when viewed along the way), and then with the same moment - the left one.
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