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 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 90 (INSTRUMENTS)
1999 Audi A8 Base
Section 90 (Instruments)
1999 Audi A8 BaseSECTION Section 90 (Instruments)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Audi S8, 2003 Audi A8, 2002 Audi S8, 2002 Audi A8, and 2001 Audi S8. However, it is still accessible from the selected car via links, so may be relevant.
- Instrument cluster
- General information
- On Board Diagnostic (OBD), function
- Malfunction message "dEF" on trip odometer display
- Instrument cluster, removing and installing
- Instrument cluster multi-pin connectors
- Terminal assignments at instrument cluster
- Vehicle speed signal, checking
- Signal from sender for fuel gauge -G-, checking
- Consumption signal, checking
- Engine Coolant Temperature (ECT) sensor -G2- signal, checking
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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.