2021 Audi A6 Saloon 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr 40 (201 bhp)
• Year: 2021
• Mileage: 92,280 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A6 Saloon S Line is advertised with 92,280 miles, approximately 37,500 above the typical mileage for its age. The AskCar estimate for this car is £16,186. It is priced at £16,995, which is £809 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 871 Audi A6 Saloon cars across different ages and specifications. We first recorded this advert 62 days ago, and its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. You can find this car at Blackline Motors in Oldham. 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: £809 (5%) over the AskCar estimate of £16,186.

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.

A 2021 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £18,400: the median of the 81 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 Audi A6 Saloon has been on sale for at least 62 days.

Price history

AskCar first saw this advert on 4 September 2026 at £17,495. Its asking price is now £16,995, £500 less. The latest price cut was seen on 5 October 2026.

Price changes recorded:

• 4 September 2026: £17,495
• 5 October 2026: £16,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 7 August 2027.

It has had 3 MOTs. The latest, on 4 August 2026, passed.

Advisories at the latest test: front brake pad(s) wearing thin both.

Mileage at that test: 92,197 miles, which matches the advertised 92,280 miles.

Advertised mileage is about 37,500 miles higher than the median mileage of a 2021 Audi A6 Saloon on AskCar.

Similar cars

13 other 2021 Audi A6 Saloon S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £15,770 to £21,000, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, blue. Mileage: 91,045 miles. Price: £15,770, £1,225 less than this car. Dealer: Evans Halshaw Ford Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-5f042feb4b9c
• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 97,450 miles. Price: £16,495, £500 less than this car. Dealer: Select Car Superstore in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-0797fd159c88
• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 82,000 miles. Price: £18,000, £1,005 more than this car. Dealer: Alistair Buchan in East Wemyss. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-5f385f15c136

• The nearest: 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, silver, 18 miles from this car. Mileage: 57,920 miles. Price: £21,000, £4,005 more than this car. Dealer: Sytner Group Huddersfield Audi in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-66e67805c111