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The Audi air intake fan may run constantly due to several factors, including a malfunctioning engine control unit (ECU), a faulty temperature sensor, or issues with the cooling system. If the ECU detects that the engine is overheating or if the temperature sensor relays incorrect readings, it may trigger the fan to run continuously to prevent damage. Additionally, a stuck relay or wiring issues could also cause the fan to operate without stopping. Regular diagnostics are recommended to pinpoint the exact cause.

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1mo ago

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