Driver Airbag
Driver Airbag
• Removing and installing the airbag unit is the same for all steering wheel versions.
• Airbag units differ only in the number of connectors:
• Connector for spiral spring and (as additional equipment) connector for multi-function steering wheel
• Removing and installing is described for a 4-spoke steering wheel with multi-function, Tiptronic and heater.
1 - Steering wheel
• Removing and Installing => [ Steering Wheel ] Steering Wheel
2 - Torx bolts (T30) (Qty. 2), 7 Nm
3 - Cover cap
• for Torx bolt
4 - Socket head bolt
• replace after each disassembly
5 - Airbag unit (N95)
CAUTION!
Observe safety precautions for working on airbags => [ Airbag Safety Precautions ] Airbag Safety Precautions.
• Removing
- Pull steering wheel as far out as possible and up.
- Turn steering wheel - 1 - to center position (wheels point straight ahead).
• The battery must be disconnected when the ignition is switched on.
- Switch on ignition.
- Disconnect battery.
- Turn steering wheel - 1 - out of center position about 80° right.
- Unclip sealing caps - 3 -.
- Loosen Torx bolt - 2 -.
- Turn steering wheel - 1 - about 160° left.
- Unclip sealing caps - 3 -.
- Loosen Torx bolt - 2 -.
• Mechanic must electrostatically discharge himself/herself before disconnecting harness connectors; to do so, grasp e.g. door striker or chassis briefly.
- Disconnect connector - 8 - for spiral spring.
- For multi-function steering wheel: Disconnect connector for multi-function steering wheel - 10 - from multi-function coupling - 6 - in steering wheel.
- Place airbag unit - 5 - so padding faces upward.
• Installing
• Do not scratch decorative frame on steering wheel when installing the airbag unit.
• Ensure connector and securing clip engage completely (audibly).
• Ensure wires are not pinched.
- Turn steering wheel - 1 - to center position (steering wheel spokes must be horizontal).
- Hold airbag unit - 5 - in front of steering wheel. Make sure that the "Airbag" lettering is legible (horizontal).
- For multi-function steering wheel: Connect connector for multi-function steering wheel - 10 - to multi-function coupling - 6 - in steering wheel.
- Route wire for multi-function steering wheel in the foam compartment provided for it.
- Connect the connector for spiral spring - 8 - to coupling for airbag unit - 14 - at return spring with slip ring - 12 -.
- Position airbag unit - 5 - in steering wheel.
- Turn steering wheel - 1 - out of center position about 80° right.
- Screw in Torx bolt - 2 - approximately 2 rotations.
- Turn steering wheel - 1 - about 160° left.
- Screw in Torx bolt - 2 - approximately 2 rotations.
- Sound horn Qty. 3 to achieve alignment.
- Do not touch airbag unit anymore.
- Tighten Torx bolts - 2 - to the specified Tightening torque:.
- Clip in sealing caps - 3 -. Make sure that sealing caps engage correctly.
CAUTION!
No one should be in vehicle when connecting battery.
- Connect the battery.
• If the airbag malfunction indicator lamp (MIL) signals a malfunction after installation, DTC memory must be checked, erased and once again checked using tester (VAS 5051).
6 - Multi-function coupling
• for multi-function steering wheel
• for reasons of illustration, multi-function coupling is depicted in the illustration with the decorative frame removed
7 - Airbag unit connector
• coded mechanically against interchange
8 - Spiral spring connector
9 - Airbag unit connector
• coded mechanically against interchange
10 - Multi-function steering wheel connector
11 - Steering wheel heating connector
12 - Coil connector with slip ring
13 - Coupling for steering wheel heater
14 - Coupling for airbag unit