2018 Audi A6 Saloon 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 4dr (201 bhp)
• Year: 2018
• Mileage: 110,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 110,000 miles, this 2018 Audi A6 Saloon S Line has covered about 42,300 more miles than other 2018 Audi A6 Saloon cars. Its asking price of £12,790 is £959 above the AskCar estimate of £11,831. To work out the AskCar estimate, we analyse UK dealer adverts for 875 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. You can find this car at Chelsea Motor Company in Windsor. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £959 (8%) over the AskCar estimate of £11,831.

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 875 priced Audi A6 Saloon adverts across different ages and specifications, as of 6 November 2026.

A 2018 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £14,800: the median of the 56 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2018 Audi A6 Saloon advertised today. About 4 in 10 of 2018 Audi A6 Saloon cars are gone from sale within a month of being advertised: 33 of the 82 first advertised between 12 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £12,790. 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 6 November 2026: valid until 8 June 2027.

It has had 6 MOTs. The latest, on 20 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 106,161 miles, which matches the advertised 110,000 miles.

Advertised mileage is about 42,300 miles higher than the median mileage of a 2018 Audi A6 Saloon on AskCar.

Similar cars

32 other 2018 Audi A6 Saloon S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £7,995 to £20,395, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 115,000 miles. Price: £7,995, £4,795 less than this car. Dealer: Driveaway N11 in London. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-72d353d57b7b
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 120,515 miles. Price: £12,990, £200 more than this car. Dealer: Autohaven Motors in High Wycombe. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-2b4b595c442b
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 121,258 miles. Price: £11,995, £795 less than this car. Dealer: Carzy in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-0edc5e86d7a0