2018 Audi A6 Saloon 2.0 TDI ultra S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2018
• Mileage: 92,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 110 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Saloon S Line is advertised with 92,000 miles, approximately 22,500 above the typical mileage for its age. The AskCar estimate for this car is £11,843. It is priced at £13,488, which is £1,645 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. This car was first seen in our listings data 157 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Auto Group in Brent. 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: £1,645 (13%) over the AskCar estimate of £11,843.

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 157 days.

Price history

AskCar first saw this advert on 29 May 2026 at £10,988. Its asking price is now £13,488, £2,500 more.

Price changes recorded:

• 29 May 2026: £10,988
• 2 June 2026: £13,488

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 6 March 2027.

It has had 6 MOTs. The latest, on 7 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 92,234 miles, which matches the advertised 92,000 miles.

Advertised mileage is about 22,500 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: 98,000 miles. Price: £12,995, £493 less than this car. Dealer: Kennedy Cars in Bargeddie. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-6287ca86409d
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 82,966 miles. Price: £14,795, £1,307 more than this car. Dealer: Mick Partlett Car Sales in Witney. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-d9aa1e69afe9
• 2018 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 82,137 miles. Price: £13,950, £462 more 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, grey, 6 miles from this car. Mileage: 43,000 miles. Price: £16,989, £3,501 more than this car. Dealer: Bluehawk Automotive in Hounslow. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-c0547a8266b4