Where is the Mercedes-Benz light sensor located?
2 Answers
Mercedes-Benz light sensor is located on the engine hood. The following are the symptoms of a damaged car sensor: 1. Unstable idle: The engine idle is unstable, and there is a momentary pause or stalling phenomenon when the vehicle starts or decelerates to stop. 2. Acceleration performance: The engine acceleration performance decreases, the speed display on the instrument panel deviates, and the engine fault light comes on. 3. Maintenance: If the speed sensor is damaged, it is necessary to go to the repair shop for inspection and repair in time. The following are the main differences between imported Mercedes-Benz and domestic Mercedes-Benz: 1. Workmanship: For domestic vehicles, starting with the doors, the treatment of corners and sheet metal is very rough. Then to the driver's seat part, the throttle and brake pedals and under the steering wheel, many plastic edges and material installations have burrs. The trunk and storage space have no protection at all. Domestic Mercedes-Benz has the phenomenon of cutting corners, which is rare in imported ones. 2. Precision: For domestic Mercedes-Benz, the chassis and some plastic assembly parts, many places where screws should be tightened do not have screws. 3. Configuration: Domestic configurations are more expensive than imported ones.
Last time I drove my friend's Mercedes-Benz, the light sensor was installed at the top of the windshield, right in the center, attached to the rearview mirror. There's a small black module there housing the sensor, which detects external light changes to automatically control the headlights—pretty convenient. If that area gets dirty or covered, like with mud splashes during rain, the headlights might become less responsive, making nighttime driving dangerous. I make it a habit to wipe the upper part of the windshield after each car wash to ensure the sensor area stays clean. Mercedes-Benz put thoughtful consideration into this design, choosing a well-protected location to avoid obstruction from the front fascia or other decorations, ensuring the automatic function remains reliable. If you're curious about its exact position, just hop into any Mercedes and glance up at the top area of the windshield—you’ll spot it easily. No need to overcomplicate it; a quick routine check is all it takes.
