ameliewolf90
Seat Altea mirror heating failure
Summary of the thread
The mirror heating on a 2014 Seat Altea diesel stopped working, affecting both mirrors. An error related to the mirror heating circuit suggested a wiring or connector issue rather than simultaneous heater element failure. It was advised to check the wiring harness and connectors for corrosion or damage. Ultimately, a corroded plug on the driver's side mirror was identified and repaired, resolving the issue.
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4 comment(s)
ameliewolf90 (community.author)
Thanks for the tips. Where exactly should I be looking for this wiring harness? Is it something I can easily access myself, or will I need to remove the door panel?
ludwigfuchs6
Yes, it's likely a corroded connector if the error code points to an electrical fault. Trying to fix car electronics yourself can be risky. Given the predicted repair cost of 95€, it's probably best to get a professional to check. They'll have the right tools and know-how to diagnose and fix it properly.
ameliewolf90 (community.author)
Took it to the shop, and you were spot on. It was a corroded plug on the driver's side mirror. 95€ later, and the mirrors are toasty again. Thanks for the help!
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SEAT
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ALTEA
ludwigfuchs6
Mirror heating problems on Alteas are fairly common, especially with that mileage. First thing I'd check is the wiring harness where it enters the door. They can get chafed or the connectors can corrode, causing an electrical fault. Also, have you checked the relevant fuses? Sometimes it's the simplest things...