Why is the Golf's rearview mirror heating not working?
3 Answers
This is a normal phenomenon. When the outside temperature exceeds a certain value, the rearview mirror heating function will be disabled. Only when the outside temperature drops below the specified temperature will the rearview mirror heating switch be reactivated. Here is some information about rearview mirror heating: 1. The function of rearview mirror heating is to ensure clear mirror surfaces by heating the electric wires embedded behind the mirrors when driving in rain, snow, fog, or other adverse weather conditions. However, when the rain is particularly heavy, the effect of rearview mirror heating may not be very noticeable. 2. Rearview mirror heating is practical but should not be used frequently. Each use should not exceed 30 minutes, otherwise it may affect the mirror's lifespan and clarity.
A malfunctioning heated rearview mirror on a Golf can be really annoying, especially when driving in the rain with poor visibility. As an experienced driver who has owned several cars, I believe there are several key points to consider for common causes. The heated mirror is powered by a fuse located in the car's fuse box—check the manual to find its position, as fuses can easily blow. A faulty switch or button can also cause failure; try pressing it a few times to see if you hear a clicking sound. Poor wiring connections are common—loose or dusty connectors may just need cleaning. The heating element itself can wear out over time and burn out. There could also be an issue with the control module, which requires professional tools to diagnose. Don’t rush to replace parts; start with simple checks, like replacing the fuse first. If the issue persists, visit a repair shop or dealership promptly to avoid compromising driving safety. Regular maintenance and attention to the mirror’s functionality can help extend its lifespan.
When driving my Golf, the rearview mirror heating suddenly stopped working, which made me quite nervous. From my perspective, safety comes first, and this feature is extremely important. In terms of causes, a blown fuse is the most common issue—just refer to the owner's manual to find the fuse number and replace it. Switch malfunctions should also be checked by repeatedly pressing the switch to see if it responds. Wiring shorts or breaks are potential hazards, especially in rainy or humid conditions. If the heating element is damaged, it needs to be replaced. Unstable system voltage might also cause problems. I recommend starting with the simpler checks first. If that doesn’t work, don’t waste time—seek professional repair. Additionally, make it a habit to test the heating function regularly, such as pressing it when starting the car in the morning, to ensure it’s always ready. While such minor issues are common, addressing them promptly can make driving much safer, especially on long trips.
