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 MANUALSAUDI1999A8 QUATTROREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 72 (ON BOARD DIAGNOSTIC (OBD) - RADIO, NAVIGATION, STEERING & TELEMATICS)NAVIGATION SYSTEM III (NS-LOW) THROUGH M.Y. 2001, ON BOARD DIAGNOSTIC (OBD)OUTPUT DIAGNOSTIC TEST MODE (DTM) (FUNCTION 03)NOTES
1999 Audi A8 Quattro
Output Diagnostic Test Mode (DTM) (function 03): Notes
1999 Audi A8 QuattroSECTION Notes
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Output Diagnostic Test Mode is only possible when vehicle is stationary and engine is not running!
- The navigation system must be switched on.
- If a malfunction is detected during output Diagnostic Test Mode (DTM), possibly Find and repair malfunction cause.
- Output Diagnostic Test Mode (DTM) can only be performed once. Switch ignition off and on again to perform Output Diagnostic Test Mode (DTM) again.
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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.