Repair and Diagnosis: Service Precautions

2007 Audi A6 Sedan (4F2) V6-3.2L (BKH)SECTION Service Precautions


Safety Precautions For Repairing Wiring Harnesses And Connectors

CAUTION:
- Before working on electrical system, disconnect battery ground (GND) strap.
- Before starting a repair, the cause of the damage must be eliminated first, i.e. sharp edges on chassis parts, faulty components, corrosion etc.
- Further information, e.g. installing and removing the individual components, is described in the appropriate repair Information.
- Wiring harness repairs may only be carried out using yellow wires.
- Every yellow wire and every location on wiring harness wrapped in yellow insulating tape indicates a previous repair.
- Shielded wires such as e.g. RPM sensor and knock sensors may not be repaired.


CAUTION:
- Wires at individual airbag modules may not be repaired.
- If wires or connectors at airbag modules are damaged, the respective airbag module must be replaced for safety reasons.
- Repairs on airbag wiring harness must be performed exclusively on vehicle side using wiring harness repair kit VAS 1978A and original replacement parts (connector housing, terminals) in order to guarantee the repair quality required by Audi AG.
- 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 void for repairs on airbag wiring harness which were not performed using original replacement parts and wiring harness repair kit VAS 1978A.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.