I have a UK 2007 A5 3.0 TDI Quattro manual, which I have had since new, so 3.5 years old, 40,000 miles. In the last few months I have had 3 different issues, all related to the car's electronics. First fault was fuel cap would not release other than by using the emergency red cord in the boot. 2nd problem was a window regulator failure which left me with the driver's window permanently down. 3rd failure was the amplifier in the B&O sound system, which had to be replacee, with the garage mentioning water seepage around the boot. Is anyone else experiencing these or similar problems? Each time, the garage has part-funded the repair (the car is out of warranty) when I have complained about quality and fitness for purpose in an expensive car.