VW Up Power Seat Failure: Switch and Motor Issues

Had the same seat motor issue on my 2014 VW Polo TSI. The electric seat adjustment failure turned out to be more than just a switch problem. After thorough diagnostics, the mechanic found the seat wiring harness had several damaged spots causing intermittent connectivity issues. The automotive seat control module needed replacement along with some wiring repairs. The seat motor itself was fine, but corrosion in the connectors caused the system failure. It was a serious repair that required partial removal of the seat to access all components. The passenger seat malfunction symptoms were identical, no movement, warning light, and unresponsive controls despite good fuses. The root cause ended up being moisture damage to the seat wiring over time. Would recommend having a professional check the whole seat electrical system, not just the switch. In my case, attempting DIY diagnosis could have caused more damage to the sensitive electronics. These seat adjustment issues often indicate deeper electrical problems requiring specialized tools to properly diagnose and repair.

Thanks for sharing your experience with the seat wiring harness repairs. I was wondering about the total repair cost you paid at the shop? Always helpful to have a rough estimate before heading in. Also curious if youve had any other seat switch or electrical issues pop up since getting it fixed? My VW is still under extended warranty but Im worried about future problems with the car seats.

Just got back from the repair shop yesterday actually. Great news, the power seats are working perfectly now. The passenger seat moves smoothly again and all electric seat adjustments are responding as they should. The issue turned out to be much simpler than my previous wiring problems. The mechanic found a heavily discharged battery that was causing the automotive seat system to malfunction. After replacing it for 290€, all the seat controls started working normally again. No other electrical problems have appeared since the fix. The mechanic mentioned that weak batteries often cause power seats to act up since the seat adjustment motors need quite a bit of power to operate properly. If your VW is still under warranty, definitely get it checked soon. These passenger seat electrical issues can sometimes indicate other underlying problems that are better caught early. The diagnostic check should be covered by your warranty.

Thanks for the input. Finally got my car back from the shop today and wanted to share my experience. The power seats issue turned out to be caused by a faulty seat motor connector that had corroded over time. Total repair cost was 420€ including labor and parts. The mechanic showed me the damaged connector that was causing the passenger seat malfunction. They had to partially disassemble the automotive seat to access and replace the electrical components. The diagnostic process was thorough and they found the issue quickly. Good news is all the electric seat adjustments are working perfectly now. No more warning lights or stuck positions. The repair took about 3 hours total and was covered under my extended warranty except for a small deductible. Really glad I took it to a professional instead of trying DIY repairs on the car seats. The electrical system is more complex than I thought and needs proper tools to diagnose. Thanks again for helping me avoid getting overcharged.