Audi TT Power Seat Failure After Suspicious Repairs

In my 2008 Audi A4 2.0T, I encountered similar issues with the passenger seat. The electric seat adjustment failed completely, accompanied by error codes. After diagnosis, the problem was traced to a faulty seat control module and damaged wiring harness beneath the passenger seat. The seat switch itself wasnt the culprit, previous improper repairs had caused wire chafing under the seat, creating a short circuit that damaged the control module. This type of damage can trigger check engine lights because modern cars integrate seat controls into the main electrical system. The repair required: Replacing the seat control module, Installing a new wiring harness, Reprogramming the module to sync with the car This was a serious electrical issue that could have caused further problems if left unrepaired. Given your cars mileage and the mention of questionable repairs, I recommend having a certified technician thoroughly inspect the wiring beneath the passenger seat before replacing any components. Key point: Check engine lights paired with seat adjustment failures often indicate electrical system damage beyond just the seat switch itself.

I actually had that exact same issue with my Audi TT about 6 months ago. The power seats completely stopped working and I got those error codes too. The wiring under the seat was totally shot, and the whole control module needed replacing. Turns out water had gotten in there somehow and corroded everything. Just curious, what was the final cost for your electric seat repair? Mine wasnt cheap at 780 Euro for parts and labor. Has the power seat system been working properly since the fix? My automotive seat functions are all good now but Id be interested to know if you had any other electrical gremlins pop up afterwards. Those car seats can be tricky with all the electronics involved, especially when water damage is part of the equation. The seat switch system in these models seems particularly sensitive to moisture.

After getting the car checked by a certified mechanic, the issue turned out to be much simpler than expected. The main problem was actually a heavily discharged battery that was affecting the power seats electrical system, a common but often overlooked cause of seat control failures. The repair cost came to 290 Euro, which included battery replacement and a thorough check of the seat wiring harness. Since the fix, the passenger electric seat has been working flawlessly with no other electrical issues appearing. The seat switch and all adjustment functions are back to normal. Unlike your situation with water damage, I got lucky that the seat control module and wiring were intact. The discharged battery was causing the system to malfunction, making it seem like a more complex problem with the power seats. This shows how interconnected modern car electrical systems are, a weak battery can affect everything from seat controls to engine performance. Good to hear your seat functions are all working properly now, even though your repair was more extensive. These electrical seat systems really need proper diagnosis to pinpoint the exact issue.

I took my Audi to a certified shop last week after seeing all the responses here. The mechanic found that my seat motor was completely burned out, likely from those previous questionable repairs where someone mustve crossed some wires. The total repair came to 650 Euro including a new power seat motor, fixing the seat wiring harness, and reprogramming the control module. The seat adjustment system now works perfectly, all directions and memory settings are functioning again. The check engine light is finally off too. The mechanic showed me where the previous work had damaged the seat wiring, there were several spots where bare wires were touching. Pretty scary considering it could have caused bigger electrical problems. Definitely learned my lesson about using qualified technicians for automotive seat repairs, especially when dealing with complex electrical systems. Glad I asked here first and learned what to look for. The repair wasnt cheap but at least I know its done right this time. No more sketchy repairs for my car.