Audi e-tron Keyless Access Failure Fixed

I had almost the same door electronics issue with my 2019 Q3 e-tron. After some basic troubleshooting with the door mechanism, I took it to a workshop since I have only basic experience with electric vehicle systems. The sensor issue turned out to be a damaged connector in the locking system, specifically where the wiring meets the door handle assembly. The technician found that moisture had caused corrosion in one of the plug connections, affecting the keyless entry function. The repair involved replacing the faulty connector and resealing the door electronics housing. Total cost was 95 Euro including diagnostics and labor. The whole repair took about 2 hours. Before suggesting specific solutions for your case, could you share: Have you noticed any other electrical issues? Does this happen on all doors or just one? Did the problem start gradually or suddenly? Have you recently had any work done on the doors? This would help determine if your issue matches what I experienced with my vehicle. The Q4 and Q3 share similar door electronics architecture, so the fix might be comparable.

Thanks for sharing your experience with the door connector issue. My car has 142117 KM on the odometer, and I am seeing similar symptoms. The door switch seems completely unresponsive on all doors. The problem appeared suddenly after a rainy weekend, which makes me think moisture could indeed be the culprit affecting the wiring fault in my case too. No other electrical issues are present, and I have not had any recent work done on the doors or locking system. The error message appears consistently whenever I approach the car. I will contact my dealer to have them check the electric door connectors based on your experience. Would you mind sharing if your car was still under warranty when this happened? Mine still has 6 months of coverage left.

Thanks for the additional details. My car was already out of warranty when the door switch issue occurred, so I had to cover the repair costs myself. Given that your vehicle is still under warranty and showing similar symptoms after rain exposure, you should definitely have the dealer examine the locking system. In my case, the moisture damage to the door electronics was gradual, but the failure appeared sudden, just like yours. The fact that all your door handles are affected suggests a possible central locking system fault rather than individual door mechanism problems. After my repair, I learned that the door electronics housing has a drain channel that can get clogged, leading to moisture buildup. Make sure the dealer thoroughly checks all electric door connections and seals during inspection. They might need to perform a complete diagnostic scan of the car door control modules to pinpoint the exact issue. Given your warranty coverage, insist on a detailed inspection of the entire keyless system since moisture damage can spread if left unchecked. Since my repair, I have not experienced any recurring issues with the door electronics, but I now regularly check the drain channels to prevent future problems.

Yes, thanks for explaining your similar experience with the door connector problem. The moisture connection makes a lot of sense given when my issue started. I am relieved to hear this might just be a sensor issue or wiring fault rather than a more serious door electronics problem. The fact that my car is still under warranty gives me confidence to have the dealer thoroughly inspect the locking system. I will schedule an appointment and make sure they check all the connections and seals you mentioned, especially given the rain exposure. Just to update on my testing, I tried using the physical key as a backup, and that still works fine, which further suggests the issue is isolated to the keyless entry components and door mechanism. I will report back once the dealer completes their diagnosis and repair of the wiring fault. Thank you again for the detailed information about your repair experience. Very helpful to know what to expect when I take it in.