Used Audi A6 Saloon S Line prices

There are 341 used Audi A6 Saloon S Line cars for sale from UK dealers on AskCar, as of 1 November 2026. Typical asking price £17,000 (the median: half cost less, half cost more). The cheapest is £1,950. The middle half are priced between £12,000 and £22,000.

Dealers lowered the asking price on more than a quarter of Audi A6 Saloon S Line cars: 110 of the 341 in the 14 days to 1 November 2026.

Audi A6 Saloon S Line prices by year

A 2019 Audi A6 Saloon S Line typically costs £17,000, against £16,500 for all 2019 Audi A6 Saloon cars, as of 1 November 2026.

YearTypical asking priceTypical mileage
2026 Audi A6 Saloon S Line£38,0003,000 miles
2024 Audi A6 Saloon S Line£27,00018,000 miles
2023 Audi A6 Saloon S Line£24,00034,000 miles
2021 Audi A6 Saloon S Line£18,40074,000 miles
2019 Audi A6 Saloon S Line£17,00069,000 miles
2018 Audi A6 Saloon S Line£16,00067,000 miles
2016 Audi A6 Saloon S Line£10,70078,000 miles

Only 14 of the Audi A6 Saloon S Line cars for sale are 2022 models, too few to give a typical asking price.

Only 19 of the Audi A6 Saloon S Line cars for sale are 2020 models, too few to give a typical asking price.

Only 12 of the Audi A6 Saloon S Line cars for sale are 2017 models, too few to give a typical asking price.

Typical asking prices are of Audi A6 Saloon S Line cars for sale on 1 November 2026, and are given only where at least 20 cars with a price are for sale.

AskCar lists 877 used Audi A6 Saloon across the UK, from 646 dealerships.

As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

Audi A6 Saloon S Line cars for sale now, page 1 of 7

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. 311 of the 324 cars listed here meet these rules. Pages 2 to 7 list every other Audi A6 Saloon S Line car, cheapest first, including the 13 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 850 priced Audi A6 Saloon adverts on AskCar as of 1 November 2026. The figures on this page describe the cars advertised, not a valuation of every Audi A6 Saloon 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 17 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

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

These 10 are priced 13% to 20% under their AskCar estimate. Their asking prices run from £3,445 to £17,495.

Cheapest Audi A6 Saloon S Line: the lowest asking prices

These 10 are priced £3,445 to £5,585. They have covered 84,000 to 168,000 miles.

Lowest-mileage Audi A6 Saloon S Line

These 10 have covered 10 to 2,204 miles. Their asking prices run from £34,599 to £39,961.

Recently reduced Audi A6 Saloon S Line: the biggest price reductions in the 14 days to 1 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 1 November 2026. Their reductions since AskCar first saw them run from £3,100 to £8,410.

Newly advertised Audi A6 Saloon S Line: first seen by AskCar in the 7 days to 1 November 2026

These 10 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Audi A6 Saloon by gearbox, fuel and body

Audi A6 Saloon prices by year

Audi A6 Saloon by trim

Audi A6 Saloon by price

More Audi

Everything