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: 80,618 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

This 2018 Audi A6 Saloon S Line is advertised with 80,618 miles, approximately 11,100 above the typical mileage for its age. The AskCar estimate for this car is £14,341. It is priced at £15,995, which is £1,654 above that estimate. The AskCar estimate uses UK dealer asking prices, including 858 Audi A6 Saloon adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 126 days ago. Its asking price has since fallen by £800. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Fleetwise in Armagh. 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

Above the going rate: £1,654 (11%) over the AskCar estimate of £14,341.

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 126 days.

Price history

AskCar first saw this advert on 29 June 2026 at £16,795. Its asking price is now £15,995, £800 less. The latest price cut was seen on 6 September 2026.

Price changes recorded:

• 29 June 2026: £16,795
• 25 July 2026: £16,495
• 6 September 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 2 January 2027.

It has had 4 MOTs. The latest, on 3 January 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 68,836 miles, which matches the advertised 80,618 miles.

Advertised mileage is about 11,100 miles higher 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, white. Mileage: 80,000 miles. Price: £10,980, £5,015 less than this car. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-9dca2055f1f2
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 79,359 miles. Price: £14,795, £1,200 less than this car. Dealer: Tenby Car Supermarket in Luton. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-a394b22b6df2
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 82,137 miles. Price: £13,950, £2,045 less than this car. Dealer: Rainford Cars in Ellesmere Port. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-5e3c02df866f

• The nearest: 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, white, 37 miles from this car. Mileage: 66,000 miles. Price: £16,949, £954 more than this car. Dealer: Donnelly Automotive in Ballymena. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-5d52e24c6e9f