2021 Audi A6 Saloon 2.0 TFSIe S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 50 S Line S tronic 4WD Euro 6 4dr (294 bhp)
• Year: 2021
• Mileage: 54,000 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 294 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 28 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A6 Saloon S Line has covered 54,000 miles. The AskCar estimate for this car is £23,730. It is priced at £22,995, which is £735 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 873 Audi A6 Saloon cars across different ages and specifications. Since we first spotted the advert 164 days ago, the asking price has dropped by £1,000. The recorded MOT expired on 16 September 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 Roadside Motors in Bolton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £735 (3%) under the AskCar estimate of £23,730.

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 873 priced Audi A6 Saloon adverts across different ages and specifications, as of 8 November 2026.

A 2021 Audi A6 Saloon with the 2.0 plug-in hybrid engine is typically advertised at £18,700: the median of the 79 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Audi A6 Saloon has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £23,995. Its asking price is now £22,995, £1,000 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 28 May 2026: £23,995
• 19 June 2026: £23,595
• 24 October 2026: £22,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 16 September 2026; ask the dealer for the current MOT.

It has had one MOT, on 17 September 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 48,768 miles, which matches the advertised 54,000 miles.

Advertised mileage is about 200 miles lower than the median mileage of a 2021 Audi A6 Saloon on AskCar.

Similar cars

2 other 2021 Audi A6 Saloon S Line 2.0 plug-in hybrid automatic saloons are for sale at UK dealers, from £12,989 to £15,795, as of 8 November 2026.

The 2 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, £7,200 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, blue. Mileage: 144,000 miles. Price: £12,989, £10,006 less than this car. Dealer: Motorhub in Keighley. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-6adae68adac7