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.
2001 Audi A6 Avant QuattroFACTORY OEM SERVICE PROCEDURE
Control module suffix "C"
CONTROL MODULE SUFFIX "C"
| X | X | X | X | X | Coding |
| X | Standard | ||||
| 0 | always zero | ||||
| X | Radio on CAN-Bus / remote operation | ||||
| 0 | Radio on CAN / remote activated | ||||
| 1 | Radio on CAN / remote deactivated | ||||
| X | Tiptronic | ||||
| 0 | always 0 = Tiptronic deactivated (hard coded) | ||||
| X | X | Steering wheel functions | |||
| 0 | 1 | Radio & telephone operation | |||
| 0 | 2 | Radio operation | |||
| 0 | 5 | Radio, telephone & voice recognition/operation |
Factory Service Tools
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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.
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