How to Turn On the Rearview Mirror Heating in Mercedes-Benz C260?
4 Answers
The rearview mirror heating in Mercedes-Benz C260 shares the same button with the rear window defogger. Simply press the button to activate the rearview mirror heating. In cold weather, when the rearview mirrors are prone to frost over, heating them becomes particularly important. Below is some relevant information about rearview mirrors: Correct adjustment angles for rearview mirrors: 1. Central rearview mirror: The correct adjustment method is to align the mirror parallel to the horizon, with the horizon positioned at the center 1/2 of the mirror surface. The mirror should slightly face the driver to ensure a clear view of vehicles directly behind. 2. Left rearview mirror: Position adjustment: The horizon should appear at the center 1/2 of the mirror, with the car body occupying 1/4 of the mirror surface. Note that the car's reflection should not be too small, as it may make it difficult to observe the actual situation of the vehicle closely following behind; nor should it be too large, as it may obscure the view of vehicles in other lanes. 3. Right rearview mirror: Since it is on the right side, the driver's blind spot is larger, so the adjustment angle differs from the left rearview mirror. First, adjust the horizon to occupy 2/3 of the right rearview mirror, while the car body occupies 1/4 of the mirror surface.
I previously drove a Mercedes-Benz C260 and encountered the issue of blurry rearview mirrors on rainy days, so I specifically researched how to activate the heating function. The rearview mirror heating in Mercedes is actually designed very thoughtfully—it’s linked with the window defogging function. After starting the engine, locate the rectangular wavy line icon button on the air conditioning control panel, which is the rear window defog button, and press it to turn it on. Interestingly, this feature has a temperature limit; it won’t respond if the weather is above 20°C, likely to prevent overheating. It’s especially useful during winter rain, quickly evaporating moisture to avoid manual wiping. If it doesn’t work after activation, remember to check the fuse and switch wiring, as Mercedes’ electrical systems are quite sophisticated.
As a seasoned driver with years of experience in German cars, I can operate the Mercedes-Benz mirror heating function blindfolded. Simply press the rectangular button with curved arrows on the climate control panel to activate both rear window defogging and mirror heating simultaneously. A little-known detail: this feature is automatically disabled by the system when outdoor temperatures exceed 20°C, indicated by the unlit button LED. It's particularly useful during humid seasons, clearing mirrors in about five minutes after activation. Mercedes' integrated design eliminates separate switches, but remember the button won't function in hot weather - this is normal operation, not malfunction. During routine maintenance, ask technicians to inspect heating element condition for added peace of mind.
The heated mirrors on my C260 are really convenient, especially during the rainy season in the south. The operation is quite simple: after starting the car, locate the rear window defogger button in the climate control area - it's the one with a square and three wavy lines. When the light turns on after pressing it, it means the function is activated, and both the front and rear windshields along with the side mirrors will start clearing condensation. However, this feature is temperature-sensitive, so it's normal for it not to work effectively on very hot days. When driving on highways during heavy rain, remember to turn it on in advance to prevent blurred vision affecting safety. If you notice the button light isn't illuminating, it might be due to a blown fuse or a faulty temperature sensor - in such cases, it's advisable to have the circuit checked at a 4S shop for safety.
