Audi A4: Airbag System
Audi A4 (B9) 2016-2025 Service Manual / Body / Body Interior / Passenger Protection, Airbags, Seat Belts / Airbag System
Component Location Overview - Airbag System
1 - Pedestrian Protection Trigger 2 -G599-
- Overview. Refer to → Chapter "Overview - Pedestrian Protection".
2 - Front Passenger Airbag Deactivation Key Switch -E224-
Not for NAR
3 - Front Passenger Airbag
- With
- Front Passenger Airbag Igniter 1 -N131-
- Front Passenger Airbag Release Valve Igniter -N491-
- Overview. Refer to → Chapter "Overview - Front Passenger Airbag".
4 - Thorax Airbag on Front Passenger Side
- With Front Passenger Thorax Airbag Igniter -N200-
- Overview. Refer to → Chapter "Overview - Front Thorax Airbag".
5 - Front Passenger Airbag -Disabled- Indicator Lamp -K145-
- Integrated in the Front Roof Module -WX3-. Cannot be replaced separately if faulty.
- Replace the Front Roof Module -WX3-. Refer to → Electrical Equipment; Rep. Gr.96; Controls, Front Interior Lamp/Reading Lamp, Removing and Installing.
6 - Rear Thorax Airbag on Front Passenger Side
- With Passenger Side Rear Thorax Airbag Igniter -N202-
- Overview. Refer to → Chapter "Overview - Rear Thorax Airbag".
7 - Front Passenger Head Curtain Airbag
- With Front Passenger Head Curtain Airbag Igniter -N252-
- Overview. Refer to → Chapter "Overview - Head Curtain Airbag".
8 - Battery Interrupt Igniter -N253-
- Overview. Refer to → Chapter "Overview - Battery Interrupt Igniter".
9 - Driver Head Curtain Airbag
- With Driver Head Curtain Airbag Igniter -N251-
- Overview. Refer to → Chapter "Overview - Head Curtain Airbag".
10 - Rear Thorax Airbag on Driver Side
- With Driver Side Rear Thorax Airbag Igniter -N201-
- Overview. Refer to → Chapter "Overview - Rear Thorax Airbag".
11 - Thorax Airbag on Driver Side
- With Driver Thorax Airbag Igniter -N199-
- Overview. Refer to → Chapter "Overview - Front Thorax Airbag".
12 - Airbag Control Module -J234-
- Overview. Refer to → Chapter "Overview - Airbag Control Module".
13 - Driver Side Airbag
- With
- Driver Airbag Igniter -N95-
- Driver Airbag Release Valve Igniter -N490-
- Overview. Refer to → Chapter "Overview - Driver Side Airbag".
14 - Steering Column Electronics Control Module -J527-
- With Airbag Spiral Spring/Return Spring with Slip Ring -F138-
- Overview. Refer to → Electrical Equipment; Rep. Gr.94; Steering Column Switch Module; Overview - Steering Column Switch Module.
15 - Airbag Indicator Lamp -K75-
- Integrated into the instrument cluster. Cannot be replaced separately if faulty.
- Replace the instrument cluster. Refer to → Electrical Equipment; Rep. Gr.90; Instrument Cluster; Overview - Instrument Cluster.
16 - Pedestrian Protection Trigger 1 -G598-
- Overview. Refer to → Chapter "Overview - Pedestrian Protection".
READ NEXT:
Airbag Control Module
Overview - Airbag Control Module
1 - Center Tunnel
2 - Nut
9 Nm
Quantity: 4
The thread must be paint and contaminant free, nut and ground pins serve
as ground connection for
Battery Interrupt Igniter
Overview - Battery Interrupt Igniter
1 - Connector
For the Battery Interrupt Igniter -N253-
2 - Nuts
Tightening specification. Refer to
→ Electrical Equipment; R
Driver Side Airbag
Overview - Driver Side Airbag
1 - Wiring Harness
For Driver Airbag Igniter -N95- and Driver Airbag Release Valve Igniter
-N490-
Replacing. Refer to
→ Chapter "Airbag Connector,
SEE MORE:
Steering Gear End Positions, Adapting
Special tools and workshop equipment required
Vehicle Diagnostic Tester
Note
If the connection between the steering gear and the steering
wheel is disconnected, the end position of the steering gear
must be readapted.
Procedure
- Connect the Vehicle Diagnostic Tester.
- Switch
Driver Assistance Systems Front Camera
Driver Assistance Systems Front Camera, Calibrating
Special tools and workshop equipment required
Vehicle Diagnostic Tester
Wheel Alignment Computer
Setting Device Basic Set -VAS6430-
Setting Device - Basic Set -VAS6430/1A-
Requirements
The -VAS6430/1A- must be set and locked in the center
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