2018 Audi A6 Saloon 2.0 TDI ultra S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2018
• Mileage: 67,704 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 110 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 Audi A6 Saloon S Line is 67,704 miles. Priced at £13,000, it is advertised £826 below the AskCar estimate of £13,826. To work out the AskCar estimate, we analyse UK dealer adverts for 874 Audi A6 Saloon cars across different ages and specifications. We have tracked this advert for 3 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Group Audi Reading, based in Reading. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £826 (5%) under the AskCar estimate of £13,826.

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 874 priced Audi A6 Saloon adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £14,800: the median of the 53 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2018 Audi A6 Saloon advertised 3 days ago. About 4 in 10 of 2018 Audi A6 Saloon cars are gone from sale within a month of being advertised: 31 of the 80 first advertised between 12 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 1 November 2026 at £13,000. 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 4 November 2026: valid until 10 March 2027.

It has had 7 MOTs. The latest, on 23 February 2026, passed.

Advisories at the latest test: central front ad blu line weeping.

Mileage at that test: 59,941 miles, which matches the advertised 67,704 miles.

Similar cars

30 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 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 67,000 miles. Price: £15,990, £2,990 more than this car. Dealer: EMC in Epping. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-58f01d55d3d3
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 66,000 miles. Price: £16,949, £3,949 more than this car. Dealer: Donnelly Automotive in Ballymena. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-5d52e24c6e9f
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 63,018 miles. Price: £16,799, £3,799 more than this car. Dealer: Bridgend Motor Group in Gateshead. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-2cc6a5929ee8

• The nearest: 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, blue, 10 miles from this car. Mileage: 54,000 miles. Price: £17,000, £4,000 more than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-2895fd2b12d5