How long have you had the car?
Have the sensors previously worked ok?
Any recent evidence of accident repair?
Obviously wires could be wrong way round but could always be a module issue.
Have you had a diagnostic check to see if any fault codes flag up
Oh wow, not heard of that. Don't know if I'd trust it especially when the old schedule was at 5 years. However I must admit my daily ford Kuga is 10 years 🤔
Thank you 😊 lol, well I'm hoping I'll be able to get it back on the road asap as I want to bring my daughter along to the shows. Oh bless ya, hope you get better soon. Definitely, wife and I have been wanting children for the last 7 years.
Thank you so much. Will look into them. Sorry to hear you've been ill. Hope you're recovering now?
I'd suspended work on the A6 in the short term whilst I've been doing the house up and getting prepped for our new (first) arrival.
Could the control unit be at fault?
Have you done a diagnostic check to see if any fault codes flag up?
Here's the AC relay types:
https://m.autodoc.co.uk/car-parts/relay-air-conditioning-10463/audi/a6/a6-avant-4f5-c6
Here's a link to the fuses and relay locations:
https://fusesdiagram.com/audi/fuses-and-relay-audi-a6-c6.html
I'd recommend a diagnostic check to see if any fault codes flag up? Think the obd port is under the driver side lower dash. It could be a gearbox module issue.
What's the service history on the gearbox?
As degrading oil can affect the gear changes.
Just think, most people only come onto forums etc when they have a problem. As last Ng as it's been looked after you should be fine. For example my A6 is known for engine problems being the 2.5 V6 TDI. However mine has done 344k before failing. I know the history of the car as it's only been owned by my dad then me.
The tailgate water could be coming from the rear wiper motor. Definitely worth taking the rear panel off to investigate.
The tailpipes will either be screwed on or welded on. Only way to know it to look under.
20 inch wheels seem large. Are they Audi ones?
Definitely worth seeing if Audi wil stamp the book for you.