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.
Indicator light functions, overview
1999 Audi A8 QuattroSECTION Indicator light functions, overview
- First switch the ignition on, and note whether the indicator lights in the instrument cluster lights up. The status of the ABS warning light -K47-, the red brake warning symbol, and the traction control indicator light -K86- provide an initial indication of the current condition.
The red symbol for "Brake system malfunction" appears in the display of the driver information system.
The ABS warning light -K47- and the traction control indicator light -K86- are located below the display.
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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.