Airbag and Safety Belt Tensioner Wiring, Repairing
NOTE:
- Observe general notes for repairs on the vehicle electrical system → Vehicle Electrical System, General Information .
- Observe the notes on wiring harness and connector repairs → Wiring Harness and Connector Repairs, General Information including identifying repair locations.
CAUTION:
Passenger protection malfunction due to faulty repairs to the airbag and belt tensioner wiring harness
- Repairs on the airbag and seat belt wiring must only be performed on the vehicle using the Wiring Harness Repair Kit VAS 1978 or Repair Manual Wiring Set VAS 1978A and original replacement parts (connector housing, terminals, wires) in order to guarantee the repair quality required by Audi AG.
- Wires at individual airbag modules may not be repaired.
- If the wires or connectors on the airbag modules are damaged, the respective airbag module must be replaced for safety reasons.
- A maximum of two repairs may be performed when repairing wires of airbag- and seat belt tensioner system. Repairs increase the electrical resistance in the wire and may trigger malfunctions in the system On Board Diagnostic (OBD).
- Repairs in the area of the airbag or seat belt tensioner should be performed a maximum of 30 cm from the next terminal housing. Together with the identification using yellow adhesive tape, this procedure makes it possible to obtain a quick overview of previously performed repairs.
- Both wires to the airbag igniter have a twist with 20 5 mm routing length. This routing length must be maintained when repairing the twisted wires.
- When repairing, both wires to the airbag igniters must be the same length. When twisting the wires - 1 and 2 - together, the - A - = 20 mm routing length must be maintained.
- While doing so, no section of wire must be greater than - B - = 100 mm without twisting of wires, e.g. in area of welded connectors - arrow -.
- Repairs are to be documented in the Audi Service Plan under "Space for workshop entries" with a short commentary of scope of repairs, workshop stamp and signature.
- Any warranty claims to Audi AG are voided if airbag wiring harness repairs were not performed using original replacement parts and the Wiring Harness Repair Kit VAS 1978 or Wiring Harness Repair Set VAS 1978A.