Electrical problems with my 2005 Audi A8

Hi, I had a similar problem with my 2002 Audi S8. It turned out that there was a serious problem with the electrics. The lights were also flickering and I had several error messages in memory. Like you, the battery was always a bit weak at the beginning. They looked at it in the workshop and found that terminal 15 was actually interrupted. It took a bit of work to fix the problem, but since then my car has been running like clockwork again. I hope this helps you a bit with your problem. But remember, every case is different and what worked on my car may not necessarily work on yours. So, always go to the mechanic! Good luck!

(Translated from German)

Hey, glad to hear that your Audi S8 is running like clockwork again after the repair. Do you remember what you had to pay to fix the problem with the disconnection of terminal 15? Did anything else unforeseen occur after the repair? Thank you in advance!

(Translated from German)

Hey, yes, it was quite tricky with the interruption of terminal 15. But now I'm really relieved that the problems have been fixed. The mechanics worked really hard and it ultimately cost €130. That was to repair the faulty main relay of the engine control unit, which was a really big job. Since then, the car has been running like a kitten again, without any additional unpredictable failures. Sometimes you just have to dig a little deeper and rely on the professionals, you know what I mean? Good luck with your Audi A8!

(Translated from German)

Hey, that sounds really expensive, but I'm pleased that your car is now running as it should again. 130 is not cheap, but considering what a new car would cost, it's certainly worth it. I think I'll take your advice to heart and take my Audi A8 to the mechanic. Thanks for your advice and experience, it really helped me! I hope that my Audi purrs like a kitten again. Wish you a safe journey!

(Translated from German)

Can anyone tell me what the error terminal 15 on the trailer coupling means?

(Translated from German)

Terminal 15 is typically associated with the ignition switch of the vehicle. If you're getting an error with terminal 15 on the trailer coupling, it could mean that there's an issue with the electrical connection between your vehicle and the trailer. This could be due to a faulty wiring harness, a blown fuse, or a problem with the trailer's electrical system itself. I would recommend starting with a check of the wiring and fuses. If you're not comfortable doing this yourself, it would be best to have a mechanic look at it. Please let us know how it goes and if you have any other questions.