emanuel_tiger4

Seat Inca diesel rain sensor issues

I'm having some annoying issues with my 2002 Seat Inca diesel. The rain-light sensor seems to be acting up. Mileage is at 91461 km. Here's what's happening: I'm getting an error stored in the error memory, the automatic wipers aren't working in the rain, no automatic headlight control, the speedometer dimming isn't functioning, and the lights switch on seemingly randomly. Could it be the gel pad on the windshield that's messing things up?

The 2002 Seat Inca diesel is experiencing issues with the rain-light sensor, affecting the automatic wipers, headlight control, speedometer dimming, and causing random light activation. The problem is suspected to be related to the gel pad on the windshield, possibly exacerbated by a non-original windshield replacement. The solution involves checking the sensor's connection and potentially recalibrating or replacing the sensor, which was confirmed by a workshop to be the issue due to bubbles under the gel pad. After replacement and calibration, the sensor's functionality was restored.

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4 comment(s)

Sounds like the rain sensor is definitely the prime suspect. Does the error code specifically point to the rain/light sensor unit? Have you checked the sensor's connection? Sometimes a loose connector can cause weird issues. Also, is the windshield original or has it been replaced?

The error code does mention the rain/light sensor. I checked the connection, seems secure. The windshield was replaced a few years ago, I'm not sure about the brand. Do you think a generic windshield could cause problems with the auto sensor's calibration or functionality?

A non-original windshield could be the issue, especially if it's not designed for the rain/light sensor. However, the bubbles forming under the gel pad are a well-known problem with these sensors and could impact car electronics in general. Since you've checked the connection and the error points to the sensor, I'd recommend getting it checked by a workshop that can properly diagnose and potentially recalibrate or replace the rain sensor. The auto sensor functionality will be back after the sensor calibration.

Took it to a workshop, and they confirmed the rain sensor was the culprit, bubbles formed under the gel pad of the windshield as suspected. They replaced it and calibrated the new one. Cost me 62€, but now everything's working again! Thanks for your help!

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SEAT

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INCA