Faults:

Usual maintenance is not exactly cheap. Timing belt, pulley, accessory belt, A/C belt, full-synthetic Castrol motor oil, oil and air filters, water pump - all easily went above EUR 500. I guess it depends on the car service shop, though, for this was the price with the labour included.

Airbag spiral was gone as I bought it... replaced w/labour for EUR 200.

Sunroof control console makes rattling noises @ low revs but I fixed it with silicone glue and now it's perfect.

Left wiper spring tends to weaken with time so it wouldn't make good contact with the windshield. This is valid for all the A6 C4's. Problem is solved temporarily by bending the arm of the wiper a little bit.

Nothing really happened, except they stole my stereo...

Armrest is very badly worn out, actually so worn it's shining.

General Comments:

This is one wonderful hi-speed cruiser. The noise @ 150 km/h is pretty bearable, having in mind it's an inline 4 cylinder 16 valve engine with 140 bhp only. This vehicle tends to stick harder to the tarmac the faster it goes, so it's very easy to lose notion of the actual speed you're going at. There are absolutely no vibrations at 180 km/h. You get highest economy and highest comfort at 130 km/h at gear five. With the air-conditioner on I got 500 kilometres with about 42 litres of 100-octane unleaded gasoline.

This car feels and drives like nothing I've ever driven before. Citroen XM is just as comfier on the straights but the A6 is more stable and has more accurate steering.

Actually there aren't many vehicles that make me feel so safe and comfortable doing chicanes at 120 km/h... There really is nothing like the AWD.