Removing and installing airbag unit with driver side airbag igniter N95 and driver side airbag igniter 2 N250 — AUDI

Removing and installing airbag unit with driver side airbag igniter
N95 and driver side airbag igniter 2
N250
Removing
Move steering wheel up and to rear as far as it will go, using full range of steering column adjuster.
WARNING
Observe safety regulations for pyrotechnic components (see the separate procedure).
Observe disposal regulations for pyrotechnic components (see the separate procedure).
With ignition switched on, disconnect battery earth wire (repair group 27).
Prise off caps (1) (left and right) on reverse side of steering wheel (arrow).
Unscrew bolt (arrow) (left and right) on back of steering wheel.
Turn steering wheel to centre position (wheels in straight-ahead position).
WARNING
Before handling pyrotechnic components (e.g. unplugging the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar.
Move airbag unit (driver side) slightly away from steering wheel.
Pull connector locking element (1) as far as stop (arrow)
. This will release electrical connector (2) which can then be unplugged.
If fitted, unplug electrical connector (3).
Detach airbag unit (4) from steering wheel.
Set down airbag unit with impact cushion facing upwards.
Installing
Install in reverse order of removal; note the following:
WARNING
Observe safety regulations for pyrotechnic components (see the separate procedure).
Before handling pyrotechnic components (e.g. plugging in the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar.
Make sure electrical connectors are fitted correctly (as far as stop) and engage audibly.
Note
Take care not to trap any wires.
Attach electrical connector for coil connector to coupling for airbag unit at return ring with slip ring.
Position airbag unit in steering wheel.
Screw in the two bolts (arrow) by approx. two turns to secure airbag unit.
Operate horn three times to ensure an even gap width.
Avoid further contact with airbag unit.
Tighten bolts (arrow).
Press caps into openings in steering wheel.
Switch on ignition.
WARNING
The battery must be connected with the ignition switched on. If pyrotechnic components (e.g. airbag or belt tensioner) are inexpertly repaired, this may result in unwanted triggering after connecting the battery. There must not be anyone in the vehicle while you are connecting the battery.
With ignition switched on, connect battery earth wire (repair group 27).
Note
If the airbag warning lamp
K75 indicates a fault following installation, you must interrogate, erase and then re-interrogate the event memory
Vehicle diagnostic tester.
Tightening torque (see “Exploded view of airbag unit (driver side)”)