Mate had a non quattro version. He had been in BMWs for years but fancied a change and went for the A6 avant. Great for bikes. Lovely looking car. Had something like 18 visits to the dealer for warranty issues in two years. It started around a couple weeks after delivery. I can’t remember them all:
Various door rattles – wrong clips used in manufacture.
Various dash rattles – dash removed and refitted a couple of times.
Warnings lights on/off depending on terrain driven on.
Electronic Handbrake failure
Passenger window opened automatically when car locked depending on outside temperature changes.
Drive shaft failure.
Front headlight failure. Self levelling paddle moving spontaneously up an down.
The last spell saw it in the garage for 4 weeks plus with Audi and an independent trying to find the source of the problem of the moment.
Thankfully it was a company car through a lease. The lease company took it back. He’s going back to BMW.