Used Audi A6 S Line prices

There are 29 used Audi A6 S Line cars for sale from UK dealers on AskCar, as of 4 November 2026. Typical asking price £27,500 (the median: half cost less, half cost more). The cheapest is £2,499. The middle half are priced between £21,000 and £42,000.

Dealers lowered the asking price on more than one in ten of Audi A6 S Line cars: 5 of the 29 in the 14 days to 4 November 2026.

AskCar lists 77 used Audi A6 across the UK, from 64 dealerships.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

Audi A6 S Line cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. All 27 cars listed here meet these rules. Page 2 lists every other Audi A6 S Line car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 64 priced Audi A6 adverts on AskCar as of 4 November 2026. The figures on this page describe the cars advertised, not a valuation of every Audi A6 S Line.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value Audi A6 S Line: priced furthest below the AskCar estimate

These 10 are priced 2% to 18% under their AskCar estimate. Their asking prices run from £2,499 to £40,000.

Cheapest Audi A6 S Line: the lowest asking prices

These 10 are priced £2,499 to £22,499. They have covered 26,338 to 158,000 miles.

Lowest-mileage Audi A6 S Line

These 10 have covered 10 to 4,455 miles. Their asking prices run from £37,899 to £45,000.

Recently reduced Audi A6 S Line: the biggest price reductions in the 14 days to 4 November 2026

The dealer lowered the asking price on each of these 4 in the 14 days to 4 November 2026. Their reductions since AskCar first saw them run from £306 to £10,500.

Newly advertised Audi A6 S Line: first seen by AskCar in the 7 days to 4 November 2026

These 3 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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