What is the reason why the headlight washer of Audi A4L cannot retract?

[ReeseDella]

The reasons why the BMW X3 air conditioner does not blow air when turned on may be due to faults in the blower and control system, or the air duct being blocked. The specific reasons are as follows: Blower issues: The blower is the core component of whether the car air conditioner blows air or not. If the blower is damaged, the car air conditioner will definitely not blow air. The cause of blower failure may be internal coil overheating damage or capacitor damage. You can judge whether it is faulty by turning the car air conditioner's wind speed and air volume to the maximum to listen to the sound of the blower. Air duct blockage: The outside air will be filtered by the air conditioner filter before entering the car, which will absorb many impurities in the air, so it is easy to cause blockage. Control system failure: If none of the above reasons apply, then the control system is faulty. The air door, control switch, and car air conditioner computer could all be the cause of the fault.