sophiafire36

EQV rain light sensor issue

My 2020 Mercedes EQV with an electric engine is acting up The rain-light sensor seems totally confused I'm getting an error message, the auto wipers don't work in the rain, the headlights won't switch automatically, the speedometer doesn't dim, and the lights just stay on I suspect a malfunctioning sensor Has anyone else experienced this Any ideas before I take it in It's really annoying

4 comment(s)

Sounds like a malfunctioning light sensor I had similar symptoms on my EQV Check for bubbles forming under the gel pad of the windshield where the rain sensor is located That's often the culprit Did you try to run a sensor calibration with diagnostic equipment

Bubbles under the gel pad, huh Interesting I wouldn't have thought of that I don't have diagnostic equipment to run sensor calibration myself Is that something a regular mechanic can do, or does it need specialist equipment

Yes, the bubbles are a known issue on some models A regular workshop should be able to perform the sensor calibration and confirm the fault If the gel pad is bubbled, replacing the rain-light sensor is the only fix It's a pretty straightforward job for them

Thanks so much for the tip You were spot on about the bubbles Took it to a workshop, they replaced the rain-light sensor, ran a sensor calibration, and now everything works perfectly The final repair cost was only 62€ for the part Really appreciate the help

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