
The Mercedes-Benz heated mirror switch is integrated with the rear window defroster button labeled 'REAR', which activates both functions simultaneously. The icon features three upward-curving arrows paired with a rectangle. Additional information about Mercedes-Benz mirror heating: 1. Use the mirror heating function sparingly, and avoid continuous operation exceeding 30 minutes to prevent damage to mirror longevity, clarity, and reflectivity. 2. During rainy conditions when water droplets form on mirrors, consider wiping them with a dry cloth instead of immediately using the heating function. The mirror heating system employs embedded heating elements behind the glass to maintain clear visibility during precipitation, fog, or snow. 3. When encountering fog, rain, or snow that obscures side/rear visibility, drivers can activate the defrost button to heat mirrors (typically to about 45°C), effectively removing condensation, frost, or ice accumulation for restored visibility.

I've been driving a Mercedes for ten years and am very familiar with the location of various function buttons in the car. The heated mirror switch is usually integrated with the rear window defroster button, located near the air conditioning control area on the center console, marked with a rectangular icon featuring three wavy lines. In my E-Class, it's right next to the hazard light button. When pressed during rain, the mirrors clear up in less than five minutes. I recommend checking the manual in the glove box, as button positions may vary slightly between different models. This feature is truly a lifesaver in rainy weather, especially when driving on highways, as it significantly improves visibility.

As a car enthusiast, I'm most familiar with Mercedes-Benz's design details. The heated mirror switch is mostly integrated with the rear windshield defogger button—just look for the rectangular icon with a curved line pattern. For example, in the C-Class, it's located at the top left of the air conditioning panel, while in the GLE, it's in the control area on the left side of the steering wheel. Note that the feature activates only when the outside temperature is below 20 degrees Celsius, similar to how many automatic wipers operate. Honestly, impaired visibility is the biggest concern when driving in the rain, making this feature a crucial safety configuration.

Last time I drove in heavy rain, I was so anxious searching for buttons all over the car. Later, I specifically researched Mercedes-Benz's heated mirror function. The switches are generally located near the center console, usually sharing the same button with the defogger. The easiest method is to simply adjust the temperature control knob: rotate it to the red zone and press the AUTO button, and the system will activate mirror heating. There are slight variations in position across different series - the older S-Class has it beside the window buttons, while newer electric models integrate it into the climate menu on the touchscreen. Remember, the icon marked in the manual is a square with wavy lines symbol.


