2020 Audi A6 Saloon 3.0 TDI S Line

Price: £17,995. Fair price: £50 (under 1%) over the AskCar estimate of £17,945, our expected asking price for this car from its model, age, mileage and specification, drawing on 871 priced Audi A6 Saloon adverts on AskCar as of 5 November 2026.

AskCar lists 902 used Audi A6 Saloon from 660 UK dealerships, as of 5 November 2026.

Overview

  • Make: Audi
  • Model: A6 Saloon
  • Trim: S Line
  • Version: 3.0 TDI S Line Tiptronic 4WD Euro 6 4dr 50 (281 bhp)
  • Year: 2020
  • Mileage: 90,200 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 281 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Silver
  • CO2: 179 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A6 Saloon S Line is advertised with 90,200 miles, approximately 32,300 above the typical mileage for its age. The AskCar estimate for this car is £17,945. It is priced at £17,995, which is £50 above that estimate. The AskCar estimate uses 871 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £900. The recorded MOT expired on 19 June 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Motorvana in Manchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £50 (under 1%) over the AskCar estimate of £17,945.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 871 priced Audi A6 Saloon adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2020 Audi A6 Saloon has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,895. Its asking price is now £17,995, £900 less. The latest price cut was seen on 6 October 2026.

Price changes recorded:

  • 28 May 2026: £18,895
  • 16 June 2026: £18,495
  • 14 July 2026: £17,995
  • 27 July 2026: £17,495
  • 20 August 2026: £19,995
  • 2 September 2026: £17,995
  • 15 September 2026: £17,485
  • 18 September 2026: £18,995
  • 6 October 2026: £17,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 19 June 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 6 June 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 89,911 miles, which matches the advertised 90,200 miles.

Advertised mileage is about 32,300 miles higher than the median mileage of a 2020 Audi A6 Saloon on AskCar.

Similar cars

1 other 2020 Audi A6 Saloon S Line 3.0 diesel automatic saloon is for sale at UK dealers, as of 5 November 2026.

The closest to this car in mileage:

  • 2020 Audi A6 Saloon S Line, 3.0 diesel saloon, blue. Mileage: 35,000 miles. Price: £22,995, £5,000 more than this car. Dealer: Eclipse Car Sales in Winchester. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-1db44678471b

Browse all Audi A6 Saloon cars for sale · 2020 Audi A6 Saloon price guide

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Photos

44 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.