Why is the Audi A6 blower not working?
3 Answers
It is likely that the air conditioning blower is damaged. You should use an instrument to read the fault code and perform repairs based on the fault code. Below is more information about the air conditioning blower: 1. Function: The blower is a 'fan' in the air conditioning system. The blower uses a rotating impeller to draw air from inside or outside the vehicle into the blower, which then enters the air conditioning unit under centrifugal force. By adjusting the input voltage to the blower, the speed of the blower can be changed, thereby altering the airflow volume. 2. Types: There are speed-regulating resistor types and speed-regulating controller types. Modern vehicle blowers generally use the resistor type for speed regulation.
Last time I drove my friend's Audi A6, I also encountered the blower not working, making the car unbearably stuffy. Thinking carefully, there might be several reasons: the most common is the blower motor burning out, especially in older cars where dust buildup can easily cause the fan to jam; second is a blown fuse—the fan circuit's fuse is in the engine compartment's fuse box, and while Audi's designs are sophisticated, some locations are tricky to find, so check the manual; third is a relay issue—that thing controls current flow, and if it fails, the headlights might work but the fan stops; fourth is a faulty switch or AC panel, where pressing the button does nothing; and lastly, poor wiring connections or aging, cracked wire harnesses causing shorts. I suggest checking the fuse and relay first—if you can't remember their locations, take a photo to help the mechanic. When using the car normally, avoid immediately turning the fan to high—wait a moment before starting to reduce burnout risk, especially in summer when interior temperatures are high. Regularly cleaning the AC system's filter can also extend the blower's lifespan, preventing dust buildup from jamming it.
I've been driving an Audi A6 for ten years. One winter, the blower suddenly stopped working, causing the windshield to fog up and making it hard to see the road. During inspection, I found the power plug was loose, possibly shaken off by rough roads; or the motor might have reached its lifespan, with the fan bearings worn out and squeaking, preventing it from spinning. The fuse box is located under the passenger seat—if a fuse is blown, replace it with a 25-amp one and never use a different specification. Also, check if the resistor is damaged, as it regulates the fan speed settings; if it fails, the fan stops working. Drive to a repair shop immediately and use a multimeter to test the voltage, determining whether it's a low-voltage issue or a faulty component—safety first, don't push your luck. After repairs, it's recommended to perform annual air conditioning maintenance, cleaning dust from the ducts, as Audi's precision systems are prone to buildup.
