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: 48,428 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: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 48,428 miles on the clock, this 2018 Audi A6 Saloon S Line has done roughly 16,100 fewer miles than a typical 2018 Audi A6 Saloon. Its asking price of £16,229 is £1,343 below the AskCar estimate of £17,572. The AskCar estimate uses 876 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 1 day ago. The recorded MOT expired on 29 September 2026, so ask the dealer whether it has been renewed. Its advertised mileage matches the government's MOT record. You can find this car at cinch in Milton Keynes. 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: £1,343 (7%) under the AskCar estimate of £17,572.

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 2018 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £15,100: the median of the 52 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2018 Audi A6 Saloon advertised 1 day ago. About 4 in 10 of 2018 Audi A6 Saloon cars are gone from sale within a month of being advertised: 37 of the 90 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 13 November 2026 at £16,229. 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: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 19 September 2025, passed.

Advisories at the latest test: offside front nail in tyre not repairable.

Mileage at that test: 42,811 miles, which matches the advertised 48,428 miles.

Advertised mileage is about 16,100 miles lower than the median mileage of a 2018 Audi A6 Saloon on AskCar.

Similar cars

27 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 14 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 48,000 miles. Price: £16,995, £766 more than this car. Dealer: R-Line Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-6f610327107d
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, blue. Mileage: 49,077 miles. Price: £16,250, the same price as this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-ff379b1671d8
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 49,227 miles. Price: £17,749, £1,520 more than this car. Dealer: TU Motors in Luton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-5c1118e2ae93

• The nearest: 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black, 15 miles from this car. Mileage: 45,000 miles. Price: £15,449, £780 less than this car. Dealer: Car City (Luton) in Luton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-cf0cec8a6e4c