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: 49,227 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

This 2018 Audi A6 Saloon S Line has covered 49,227 miles, around 20,300 fewer miles than is typical for its age. The AskCar estimate for this car is £17,459. It is priced at £17,849, which is £390 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 858 Audi A6 Saloon cars across different ages and specifications. The asking price is now £150 lower than when we first recorded the advert 71 days ago. Its advertised mileage matches the government's MOT record. It is for sale at TU Motors in Luton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £390 (2%) over the AskCar estimate of £17,459.

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 858 priced Audi A6 Saloon adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £14,800: the median of the 52 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A6 Saloon has been on sale for at least 71 days.

Price history

AskCar first saw this advert on 23 August 2026 at £17,999. Its asking price is now £17,849, £150 less. The latest price cut was seen on 11 October 2026.

Price changes recorded:

• 23 August 2026: £17,999
• 25 August 2026: £18,249
• 31 August 2026: £17,949
• 11 October 2026: £17,849

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 September 2027.

It has had 6 MOTs. The latest, on 25 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,229 miles, which matches the advertised 49,227 miles.

Advertised mileage is about 20,300 miles lower than the median mileage of a 2018 Audi A6 Saloon on AskCar.

Similar cars

29 other 2018 Audi A6 Saloon S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £7,995 to £21,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 48,428 miles. Price: £16,700, £1,149 less than this car. Dealer: Marshall Volkswagen Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-538c812a95c7
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 48,000 miles. Price: £17,495, £354 less 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, grey. Mileage: 53,099 miles. Price: £16,175, £1,674 less than this car. Dealer: Carpoint UK Motor Company in Newport. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-9a33c4b846df

• The nearest: 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black, under a mile from this car. Mileage: 45,000 miles. Price: £15,990, £1,859 less than this car. Dealer: Car City (Luton) in Luton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-cf0cec8a6e4c