What is the reason why the Audi rearview mirror cannot open?
2 Answers
Audi rearview mirror cannot open because the folding motor of the rearview mirror is faulty. The following are the specific details: 1. Definition: Generally, an anti-glare rearview mirror is installed inside the car. It consists of a special mirror, two photodiodes, and an electronic controller. The electronic controller receives signals of front and rear light from the photodiodes. If the light shines on the rearview mirror inside the car, and the rear light is greater than the front light, the electronic controller will output a voltage to the conductive layer. This voltage on the conductive layer changes the color of the electrochromic layer. The higher the voltage, the darker the color of the electrochromic layer. At this time, even if strong light shines on the rearview mirror, the light reflected by the anti-glare rearview mirror to the driver's eyes will appear dim and not dazzling. 2. Usage method: With the help of the car rearview mirror, the driver can expand the field of vision and indirectly see the conditions behind, beside, and below the car. It can be said that the car rearview mirror plays a vital role for the driver.
I've been driving an Audi for over five years and have encountered the issue of the side mirrors not opening several times. Here's my experience sharing. A common cause is a blown fuse in the electric folding system, located in the fuse box, usually labeled as 'Mirror' or 'Folding Mirror'. It melts to protect the circuit when the current is too high. Additionally, the mirror switch button may wear out or have poor contact, especially for owners who frequently use the folding function—worn-out switch buttons can prevent signal transmission. Mechanical parts can also be an issue, such as insufficient lubrication or dust accumulation in the pivot area, causing the motor to fail in moving the mirror. Electronic module failure is another reason; Audi's folding system is managed by a control module, and if there's voltage instability or a software error, the system may stop working. Initial checks are simple: first, inspect the fuse to ensure it's intact, then try gently pushing the mirror manually to see if it's stuck. If that doesn't work, restart the car or visit a dealership to use diagnostic tools to check for error codes—don't delay to avoid damaging the motor.
