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.
All-wheel drive vehicles
Test on a single-axle brake dynamometer for all-wheel drive vehicles
The rollers drive the wheels of one axle in opposite directions to avoid transmitting torque to the other axle.
Test speed must not exceed 6 km/h, otherwise the EDL control can activate the brakes if the rollers start at different speeds.
All brake test equipment approved by Audi meets these requirements.
Test on a single-axle brake dynamometer
Test speed must not exceed 6 km/h, otherwise the EDL control can activate the brakes if the rollers start at different speeds.
All brake test equipment approved by Audi meets these requirements.
NO RELATED
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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.