AUDI A6 (2004-09) 5DR AVANT 3.0 TDI QUATTRO S LINE
Buyer's Guide & Data from our Checks
The AUDI A6 (2004-09) 5DR AVANT 3.0 TDI QUATTRO S LINE is a premium, large estate, offering more luggage space than an executive saloon. In the UK used-car market, it competes with BMW 5 Series and Mercedes-Benz E-Class estates, combining a discreet luxury feel with everyday practicality and family trips alike.
mycarcheck.com records show 51 look-ups across 29 VINs, a modest snapshot. Checked cars average £1,400 in private-sale value and 164,000 miles; average annual mileage is 6,000, and owners have averaged around 4.5 previous keepers. These figures describe examples checked, not a guarantee of condition or price for any individual car.
Strong diesel performance and Quattro four-wheel drive bring confident grip in poor weather. The spacious Avant suits families, commuters and anyone carrying holiday or work gear; S Line trim adds sportier styling. Against rivals, it offers comfort and useful load space, though checks of service history and condition are important.
Buying an Audi A6 Avant? Outstanding finance, write-offs, hidden damage, mileage discrepancies or theft could turn a bargain into a costly mistake. Enter the reg now and check before you commit.
Key Findings
The following statistics are drawn from our checks of 29 different vehicles, run between February 17th 2021 and October 31st 2026. These real-world insights provide context for this vehicle's place in the market, as well as its typical usage.
51
Lookups
Lookups
0
Hidden Histories
Hidden Histories
171k
Average Mileage
Average Mileage
£1,400
Average Valuation
Average Valuation
