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Where is the rearview mirror heating switch for the Mercedes-Benz GLA?

1 Answers

EdwardLynn

07/29/25 3:29pm

The rearview mirror heating switch for the Mercedes-Benz GLA is located on the inner side of the driver's door handle. The heating knob switch can be rotated to three positions, with the left position being for rearview mirror heating. Rearview mirror heating is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the surface, gradually removing rainwater or fog, eliminating the need for frequent manual wiping and reducing driving hazards. How to use the rearview mirror heating function: There are generally two ways to activate the rearview mirror heating function. One is combined with the electric rearview mirror adjustment button—simply rotate the knob to turn it on. The other is located on the air conditioning control panel—pressing the heating button activates it. No manual angle adjustment is needed, as the driver's side has a dedicated adjustment button. Principle of the rearview mirror heating function: After pressing the button, the electric heater behind the rearview mirror glass rapidly heats up to a fixed temperature (usually between 35-60 degrees Celsius) within minutes. Heat is then emitted from both left and right rearview mirrors. Simultaneously, as the temperature rises, water droplets on the mirror surface evaporate, and fog gradually dissipates, effectively defogging and deicing the mirror. However, in heavy rain, its effectiveness may diminish. Precautions for using the rearview mirror heating function: The heating function works by embedding electric heating wires in the rearview mirror, which consume significant power. Ensure the car is running when using this feature to avoid draining the battery, which could prevent the car from starting. Other methods for defogging rearview mirrors include: Opening windows slightly to allow air circulation, reducing the temperature difference between inside and outside the car, which helps dissipate fog. Adjusting the car's air conditioning to blow warm air onto the mirrors for defogging.

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