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Home >> Audi >> 2007 >> S4 Quattro Sedan (8EC) V8-4.2L (BHF) >> Repair and Diagnosis >> Service and Repair
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Repair and Diagnosis: Service and Repair



General Information

CAUTION:
Before beginning repairs on the electrical system:
- Where applicable, obtain anti-theft radio security code.
- Switch off all electrical consumers.
- Switch the ignition off and remove ignition key.
- Disconnect negative ( - ) battery terminal.
- On vehicles equipped with Audi Telematics by OnStar(R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery
- After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Owners Manual.
- After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (backup) battery for the Telematic/Telephone Control Module

Special tools, testers and auxiliary items required







- Wiring harness repair set VAS 1978







NOTE:
- Wiring harness and connector repairs on the vehicle electrical system are only to be performed using wiring harness repair set VAS 1978 .
- An instruction manual is included in the wiring harness repair set VAS 1978 , in which the procedure for repairs is described in detail.
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