Which button is the rearview mirror heating switch for the Mercedes-Benz C200?
2 Answers
The rearview mirror heating switch for the Mercedes-Benz C200 is the REAR button, located on the center console. The rearview mirror heating button is integrated with the rear window defogger into a single button, marked with a rectangle featuring three upward-curving arrows and the REAR symbol. Press the corresponding button when needed to activate the heating function. The rearview mirror heating is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the mirror surface, gradually removing rain or fog from the mirror, eliminating the need for the driver to frequently wipe the mirror manually, thereby 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 mirror adjustment function button—simply rotate the knob to turn it on. The other is located on the air conditioning control panel—press the heating button to activate it. There's no need to manually adjust the angle, as the driver's side has adjustment buttons. Principle of the rearview mirror heating function: After rotating the button, the electric heater behind the rearview mirror glass quickly heats up to a fixed temperature within a few minutes, typically between 35-60 degrees Celsius. The heat will radiate from the left and right rearview mirrors. Meanwhile, as the temperature rises and evaporates, water droplets on the mirror surface will become smaller, and fog will gradually disappear, thereby heating the mirror and removing frost. If the rain is particularly heavy, its effect may diminish, becoming less noticeable. Precautions for using the rearview mirror heating function: The principle of rearview mirror heating involves adding electric heating wires to the mirror. These wires consume a significant amount of electricity. When using the rearview mirror heating function, ensure the car is in a running state. Avoid activating the heating function while the car is stationary to prevent draining the car battery, which could leave insufficient power to start the car. Other methods for defogging rearview mirrors include: Opening windows for air circulation: Crack open the side windows slightly to allow air to flow between the inside and outside of the car, reducing the temperature difference and causing the fog to gradually disappear. Adjusting the air conditioning: Set the car's air conditioning to the appropriate setting to use the warm air blown out by the AC to defog the mirrors.
After driving for so many years, I can tell you the rearview mirror heating button on the Mercedes-Benz C200 is actually quite noticeable. From the driver's seat, just look left toward the control panel on the door—it's usually that small button with a tiny fan or heating icon, right next to the mirror adjustment knob. Press it, and it activates the heating function for both the mirrors and rear window. It's most useful during rainy or foggy weather—just one press quickly clears the fog, instantly improving visibility and preventing blind-spot accidents. Some models even activate it automatically, but you'll need to make sure the settings are correct, like the key system or air conditioning linkage. If you ever mix up the buttons, try checking the owner's manual—don't mess with the wiring carelessly, as it could affect safety. Regular maintenance checks on this switch are also important to prevent contact oxidation and unresponsiveness.
