2018 Audi A6 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 5dr (201 bhp)
• Year: 2018
• Mileage: 118,600 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Red
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Avant S Line is advertised with 118,600 miles, approximately 35,700 above the typical mileage for its age. Priced at £13,749, it is advertised £984 above the AskCar estimate of £12,765. The AskCar estimate draws on 778 Audi A6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 18 days ago, the asking price has dropped by £550. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Noya Motor Group in Peterborough. 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: £984 (7%) over the AskCar estimate of £12,765.

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

A 2018 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £14,700: the median of the 50 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A6 Avant has been on sale for at least 18 days.

Price history

AskCar first saw this advert on 15 October 2026 at £14,299. Its asking price is now £13,749, £550 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 15 October 2026: £14,299
• 18 October 2026: £14,199
• 24 October 2026: £13,999
• 1 November 2026: £13,749

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 5 July 2027.

It has had 6 MOTs. The latest, on 24 June 2026, passed.

Advisories at the latest test: rear brake pad(s) wearing thin both sides.

Mileage at that test: 117,067 miles, which matches the advertised 118,600 miles.

Advertised mileage is about 35,700 miles higher than the median mileage of a 2018 Audi A6 Avant on AskCar.

Similar cars

14 other 2018 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £9,950 to £20,299, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Avant S Line, 2.0 diesel estate, white. Mileage: 121,177 miles. Price: £13,995, £246 more than this car. Dealer: Blackline Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-41093fc03c2b
• 2018 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 124,000 miles. Price: £9,950, £3,799 less than this car. Dealer: Windmill Motors in Bourne. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-7713e446c241
• 2018 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 109,358 miles. Price: £10,495, £3,254 less than this car. Dealer: Ideal Car Centre in Bilston. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-f7b5329249bc