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lilianghost1
C1 Rain Sensor Fault
4 comment(s)
lilianghost1 (Author)
I haven't spotted any damage to the wiring, and it looks like the windshield is the original one. What difference would that make?
laraneumann1
Sometimes bubbles can form under the gel pad of the sensor, particularly on older, original windshields. This interferes with the sensor's readings. I'd recommend getting it checked at a workshop.
lilianghost1 (Author)
Thanks for the tip! I took it to a workshop, and you were spot on. It was bubbles under the gel pad. They replaced the sensor, and now everything's working fine. Cost me 62€.
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laraneumann1
That sounds like a malfunctioning sensor alright. Have you checked for any visible damage to the sensor unit itself, or the wiring harness connected to it? Is the windshield original?