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: 54,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Saloon S Line is advertised with 54,000 miles, approximately 13,700 below the typical mileage for its age. Its asking price of £17,000 is £91 below the AskCar estimate of £17,091. The AskCar estimate uses 874 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 19 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Stratus in Hook. 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: £91 (under 1%) under the AskCar estimate of £17,091.

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

This 2018 Audi A6 Saloon has been on sale for at least 19 days.

Price history

AskCar first saw this advert on 16 October 2026 at £17,000. 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 14 April 2027.

It failed its MOT on 7 April 2026 (front windscreen washer not working) and passed 3 days later, on 10 April 2026.

Advisories at the latest test: nearside rear lower coil spring mounting corroded but not seriously weakened; offside rear lower coil spring mounting corroded but not seriously weakened.

Mileage at that test: 52,482 miles, which matches the advertised 54,000 miles.

Advertised mileage is about 13,700 miles lower than the median mileage of a 2018 Audi A6 Saloon on AskCar.

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, grey. Mileage: 53,099 miles. Price: £16,000, £1,000 less than this car. Dealer: Carpoint UK Motor Company in Newport. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-9a33c4b846df
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, blue. Mileage: 57,250 miles. Price: £13,394, £3,606 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, black. Mileage: 49,227 miles. Price: £17,849, £849 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, grey, 10 miles from this car. Mileage: 67,704 miles. Price: £13,000, £4,000 less than this car. Dealer: Sytner Group Audi Reading in Reading. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-b8d54c808cfb