How to turn on the rearview mirror heating for Audi Q5?
2 Answers
After pressing the adjustment button, the electric heating element behind the rearview mirror glass will quickly heat up to a fixed temperature within a few minutes, usually between 35-60 degrees Celsius. Steam will emerge from both the left and right rearview mirrors, and the water droplets on the mirror surface will gradually evaporate and shrink due to the rising temperature, while the fog will slowly disappear. This achieves the effect of heating the mirror to remove fog and frost. Here is some related information about rearview mirror heating: Precautions: Some vehicles' rearview mirror heating function only operates when the ambient temperature is below 15 degrees Celsius. Therefore, if the rearview mirror heating is not working at times, the first consideration should be whether the outdoor temperature is too high. If temperature is not the issue and the rearview mirror heating still doesn’t work, it should be promptly inspected and repaired. Recommendation: Use the rearview mirror heating sparingly, and each use should not exceed 30 minutes, as prolonged use may affect the mirror's lifespan, clarity, and luminosity. When there are water droplets on the rearview mirror after the rain stops, you can avoid turning on the heating and instead wipe it dry with a cloth.
In my long-term experience driving the Audi Q5, activating the rearview mirror heating is quite intuitive. Simply locate a rectangular icon button on the central air conditioning panel, featuring wavy heat lines – this is the rear window defogger switch. A single press activates it, as the system shares this function with the mirror heating. The system automatically engages based on temperature, typically operating only when the exterior temperature drops below 15°C. An illuminated button indicates activation, and you'll need to wait about 5 minutes for the mirrors to fully defrost. This design is hassle-free, requiring no additional steps. While minor variations may exist across different model years of the Q5, the button placement remains largely consistent. The feature may also activate during wiper or reverse gear operation. Preemptively turning it on prevents foggy mirrors that could obstruct visibility, significantly enhancing driving safety – particularly practical in damp, chilly weather conditions.
