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 MANUALSAUDI2004A6 QUATTRO, 2.7 D, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSON BOARD DIAGNOSTIC (OBD) - 2001 AND UPINSTRUMENT CLUSTER, ON BOARD DIAGNOSTIC (OBD)OUTPUT DIAGNOSTIC TEST MODE (DTM) (FUNCTION 03)NOTES
2004 Audi A6 Quattro, 2.7 D, Standard
Output Diagnostic Test Mode (DTM) (function 03): Notes
2004 Audi A6 Quattro, 2.7 D, StandardSECTION Notes
NOTE:
- Output Diagnostic Test Mode (DTM) is only possible with engine idle and ignition switched on.
- If malfunctions are detected during Output Diagnostic Test Mode (DTM), determine cause of malfunction and repair.
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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.