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: 58,799 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Saloon S Line has covered 58,799 miles, around 10,700 fewer miles than is typical for its age. The dealer is asking £15,995, which is £631 below the AskCar estimate of £16,626. To work out the AskCar estimate, we analyse UK dealer adverts for 858 Audi A6 Saloon cars across different ages and specifications. Since we first spotted the advert 45 days ago, the asking price has dropped by £2,000. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Magna Motor Group in Warrington. 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: £631 (3%) under the AskCar estimate of £16,626.

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 45 days.

Price history

AskCar first saw this advert on 18 September 2026 at £17,995. Its asking price is now £15,995, £2,000 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 18 September 2026: £17,995
• 24 September 2026: £17,600
• 29 September 2026: £16,995
• 8 October 2026: £16,700
• 13 October 2026: £16,498
• 14 October 2026: £16,495
• 16 October 2026: £15,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 January 2027.

It has had 5 MOTs. The latest, on 31 January 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 54,124 miles, which matches the advertised 58,799 miles.

Advertised mileage is about 10,700 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, blue. Mileage: 57,250 miles. Price: £13,394, £2,601 less than this car. Dealer: Lambert Ford in Leven. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-1d0438354161
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 62,456 miles. Price: £16,998, £1,003 more than this car. Dealer: Arnold Clark Wallsend Silverlink Citroen / Peugeot / Jeep / OMODA / JAECOO in Wallsend. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-074b54a9e035
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 63,018 miles. Price: £16,799, £804 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, black, 16 miles from this car. Mileage: 12,900 miles. Price: £21,250, £5,255 more than this car. Dealer: Group 1 Automotive Cheshire Oaks Audi in Ellesmere Port. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-10b44af84f3d