johncrystal1

Mercedes X Klasse rain light sensor issue

My 2020 Mercedes X Klasse diesel is throwing a rain-light sensor fault The automatic wipers aren't working in rain, headlights aren't automatically controlled, speedometer dimming is dead, and the lights switch on seemingly randomly I've checked the error memory Has anyone seen this before I'm suspecting it might be bubbles forming under the windshield's gel pad, messing with the rain detection Any thoughts

A 2020 Mercedes X Klasse experienced a rain-light sensor fault, affecting automatic wipers, headlights, and speedometer dimming. The suspected cause was bubbles forming under the windshield's gel pad, interfering with rain detection. A workshop confirmed this issue and resolved it by replacing the rain-light sensor, restoring all functions to normal.

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4 comment(s)

Interesting I have an X Klasse too and had similar issues with car electronics Are you certain about the bubble theory What steps have you taken so far to diagnose this sensor fault

Well, I've visually inspected the windshield around the sensor, and it looks like there might be some minor imperfections in the gel I haven't pulled anything apart yet though What was the cause of your similar problem What did you have to do

Ah, I see I wasn't comfortable enough to deal with the car electronics myself so I took it to a workshop They identified the rain-light sensor as the problem Replacing the sensor resolved it completely It's a tricky area with the windshield and all If you suspect the gel pad, it's best to let professionals handle it

Okay, thanks for the advice I'll book it in with a workshop Turns out you were spot on The workshop confirmed bubbles under the gel pad were causing the issue They replaced the rain-light sensor, and everything is working perfectly again The final repair cost was 62€ Appreciate the help

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MERCEDES

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XKLASSE