Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012A8 QUATTRO SEDAN (4H2) V8-4.2L (CDRA)REPAIR AND DIAGNOSISSTARTING AND CHARGINGPOWER AND GROUND DISTRIBUTIONPOWER DISTRIBUTION MODULESERVICE AND REPAIR
2012 Audi A8 Quattro Sedan (4H2) V8-4.2L (CDRA)
Power Distribution Module: Service and Repair
2012 Audi A8 Quattro Sedan (4H2) V8-4.2L (CDRA)SECTION Service and Repair
Vehicle Electrical System Control Module (J519)
- If the control module was replaced, select the "Replace" function for the respective control module in "Guided Fault Finding" or "Guided Functions" operating mode of the Vehicle Diagnostic Tester.
Removing
- Remove the driver side knee airbag.
- Disengage the 7-pin relay/fuse panel from the mount with the wires still connected. Refer to=> [ 7-Pin Relay/Fuse Panel ] 7-Pin Relay/Fuse Panel.
- Release the spring - 4 - and remove the Vehicle electrical system control module - 3 -.
- Disconnect the connectors - 1, 2, 7, 8 and 9 -.
- Disconnect the connectors - 5 - and - 6 -.
- To disconnect the electrical connector, press the catch - 1 -, rotate the retaining bracket in the - direction of the arrow - and remove the connector.
Installing
Install in reverse order of removal. Note the following:
- Install the 7-pin relay/fuse panel. Refer to => [ 7-Pin Relay/Fuse Panel ] 7-Pin Relay/Fuse Panel.
- Install the driver side knee airbag.
RENDER: 1.0x
NO RELATED
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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.