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What is the reason for the engine fault light in Audi Q5?

1 Answers

DeReese

07/30/25 3:39am

Audi Q5 generally has a self-inspection process for a few seconds after power-on, during which all indicator lights will illuminate. After the self-inspection is completed, under normal circumstances: 1. The lights will turn off: The airbag fault light will turn off. If the seat belt is fastened, the seat belt warning light will also turn off, and the remaining lights will stay on. 2. Normal: After the engine starts, normally only the water temperature light remains on, and all other lights will turn off. 3. Fault: If the engine light remains on after starting, it indicates an engine fault, and the information cannot be cleared. You need to go to a 4S store for inspection immediately. If you can confirm that the engine fault light is on, you can follow these steps: 1. Pull over and turn off the engine, wait for a few dozen seconds, and then restart to see if the engine fault light is still on. 2. If it is on, drive slowly to the 4S store for inspection and handling; if the engine fault light is off, avoid driving with high throttle or speed. 3. Even if the engine fault light is on, you may not feel any issues with the car (subjectively), but the car’s emission system definitely has a fault. Fuel efficiency will significantly decrease, and exhaust emissions will exceed standards, so you must go to a 4S store for inspection and repair.

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