What Causes the Golf's Rearview Mirror Heating to Not Work?
2 Answers
Golf car's rearview mirror heating not responding reasons and solutions are as follows: 1. The electric heating function of the car's rearview mirror is not activated: Solution: Press the heating button and wait for a while, then touch the rearview mirror to see if it feels warm. If it does, it indicates that the circuit is fine. 2. Insufficient car battery power: Solution: Replace the battery or charge it. 3. Rearview mirror heating switch is damaged: Solution: Go to a 4S shop for replacement. Below is more information about rearview mirror heating: 1. Function: When driving in rain, snow, fog, or other weather conditions, the rearview mirror can be heated through the electric heating wires embedded behind the mirror to ensure the surface of the mirror remains clear. However, when the rain is particularly heavy, the effect of rearview mirror heating may not be very noticeable. 2. Heating duration: Each use should not exceed 30 minutes, otherwise, it may affect the lifespan and clarity of the mirror.
Last time it rained while driving my Golf, I noticed the rearview mirror heating wasn't working. Checking three key spots proved most effective. First inspect fuse F42 in the fuse box under the steering wheel - this is the dedicated fuse for mirror heating. Then feel the mirror surface for 5 minutes - if lukewarm, the circuit works but heating element may have breakpoints (common VW group issue). Pro tip: activate heating 20 minutes before rainy drives. For emergency fogging, apply soft soap to mirror surface. Modified wiring? Must check BCM controller coding - incorrect wiring can fry the computer and disable heating completely.