2021 Audi A6 Saloon 2.0 TFSIe S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 17.9kWh TFSIe 50 S Line S tronic 4WD Euro 6 (s/s) 4dr (295 bhp)
• Year: 2021
• Mileage: 111,421 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 295 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 29 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A6 Saloon S Line has covered 111,421 miles, around 56,600 more miles than is typical for its age. Its asking price of £16,500 is £372 above the AskCar estimate of £16,128. To work out the AskCar estimate, we analyse UK dealer adverts for 876 Audi A6 Saloon cars across different ages and specifications. It first appeared in our advert records today. We checked its advertised mileage against the government's MOT record, and they match. The seller is Rainford Cars, based in Ellesmere Port. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £372 (2%) over the AskCar estimate of £16,128.

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 876 priced Audi A6 Saloon adverts across different ages and specifications, as of 14 November 2026.

A 2021 Audi A6 Saloon with the 2.0 plug-in hybrid engine is typically advertised at £18,400: the median of the 81 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2021 Audi A6 Saloon advertised today. About 4 in 10 of 2021 Audi A6 Saloon cars are gone from sale within a month of being advertised: 43 of the 108 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 14 November 2026 at £16,500. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 14 November 2026: valid until 1 June 2027.

It has had 4 MOTs. The latest, on 5 May 2026, passed.

Advisories at the latest test: nearside rear nail in tyre.

Mileage at that test: 110,252 miles, which matches the advertised 111,421 miles.

Advertised mileage is about 56,600 miles higher than the median mileage of a 2021 Audi A6 Saloon on AskCar.

Similar cars

5 other 2021 Audi A6 Saloon S Line 2.0 plug-in hybrid automatic saloons are for sale at UK dealers, from £12,989 to £22,995, as of 14 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A6 Saloon S Line, 2.0 plug-in hybrid saloon, blue. Mileage: 120,700 miles. Price: £15,795, £705 less than this car. Dealer: Vansco 333 Showroom Southampton in Southampton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-562da90dcc68
• 2021 Audi A6 Saloon S Line, 2.0 plug-in hybrid saloon, grey. Mileage: 121,270 miles. Price: £14,495, £2,005 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-545db85fdb08
• 2021 Audi A6 Saloon S Line, 2.0 plug-in hybrid saloon, blue. Mileage: 144,000 miles. Price: £12,989, £3,511 less than this car. Dealer: Motorhub in Keighley. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-6adae68adac7

• The nearest: 2021 Audi A6 Saloon S Line, 2.0 plug-in hybrid saloon, grey, 30 miles from this car. Mileage: 54,000 miles. Price: £22,995, £6,495 more than this car. Dealer: Roadside Motors in Bolton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-f1481c5176db