The dashboard lights sometimes go off and the bulb for the trip computer has stopped working.
High pressure switch on A/C has intermittent fault. This started at about 180,000 miles I think (it only happens in really hot weather). It just means the air con switches itself off and will not come back on until it feels like it!
What a car. I bought this with a full Audi service history. It had one company owner from new. I have driven this as a taxi for the last 18 months and boy has it had some hammer. Speed bumps, wheel chairs, kids, drunk people falling over it - you name it.
It nearly touched 150 mph once and still kicks down at 100 mph!
If you take your time though it will return 32 mpg on a motor way even with 203,000 miles on the clock.
All I've had to do is service this car and replace the exhaust. That's it!
The V6 sounds great and still starts first time every time.
Its just a pity the new shaped A6 doesn't have the same build quality.
Well it depends on the way its been taken care of regarding the new shape, with mine I haven't had problems.