Audi RS7 Door Lock Nightmare: Wiring Fault Mayhem

Had a similar issue with my 2015 RS6. This sounds exactly like what I experienced last year. With some experience working on these models, the symptoms match a typical door sensor malfunction that affects the car alarm system. The central locking issue combined with unusual alarm triggers pointed to faulty contact signals between the door switches and the control module. After basic troubleshooting failed, took it to a specialized workshop where they diagnosed a damaged wiring harness connector at the driver side door. The repair involved replacing the damaged plug connection and recalibrating the door contact sensors. Total cost was 95 Euro including parts and labor. The fix completely resolved both the locking issues and unusual car alarm triggers. To help diagnose your specific case more accurately, could you share: Are all vehicle doors affected or just specific ones? Does the key fob show any signs of battery weakness? When did you first notice the unusual alarm triggers? Can you hear the central locking motors attempting to work? These details would help determine if your RS7 has the same underlying issue mine had with the wiring harness.

Just had my 190317km service done last month. The symptoms matched my issue exactly, turned out the wiring harness was damaged where it flexes into the driver door. The automatic locks would fail intermittently before stopping completely. The shop found corroded pins in the door contact sensor connection which disrupted signals to the central locking system. Total repair came to 280 Euro after they replaced the wiring harness section and recalibrated the vehicle doors. Worth checking those connection points first since water intrusion is common there and causes similar symptoms.

Thanks for the feedback on your repair, good to hear you got it resolved. After checking the wiring harness during my repair, the technician actually showed me the typical wear points where the electrical issue develops. The car sensor connections are especially vulnerable where the harness flexes between the door and body. For my RS6, they ended up replacing a slightly longer section of the harness to prevent future problems at those flex points. It also required a complete door sensor recalibration to get the automatic locks working properly again. This comprehensive fix helped avoid any recurring electrical issues with the door contact signals. The 280 Euro repair cost seems about right given the work involved. My initial quote was similar, though I managed to get a small discount since they were already doing other service work. The key is catching these door sensor problems early before water damage spreads through more of the wiring harness. Have you noticed any lingering issues with the car alarm or central locking since the repair? Mine has been solid for over a year now with no return of the unusual triggers or locking problems.

Good to know your diagnosis matched my case exactly. Since the repair last month, everything has been working perfectly, no more unusual car alarm triggers or issues with the automatic locks. The shop did a thorough job testing all door contact signals after installing the new wiring harness section. For anyone else reading this thread with similar electrical issues, checking those harness flex points early can save money before water damage spreads. The 280 Euro repair was worth every cent to fix both the central locking and alarm problems. Much better than letting corroded door switch connections cause more extensive damage to the system. I will probably have them inspect the other door harnesses during my next service just as a preventive measure. The technician mentioned these electrical issues often show up around 200000km when the original wiring starts to show age-related wear.