2015 Audi A6 Avant 2.0 TDI ultra S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2015
• Mileage: 109,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 115 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 109,000 miles, this 2015 Audi A6 Avant S Line has covered about 17,900 more miles than other 2015 Audi A6 Avant cars. The dealer is asking £9,000, which is £361 below the AskCar estimate of £9,361. To work out the AskCar estimate, we analyse UK dealer adverts for 785 Audi A6 Avant cars across different ages and specifications. We first recorded this car for sale 11 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Colchester Cars For less, based in Colchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £361 (3%) under the AskCar estimate of £9,361.

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 785 priced Audi A6 Avant adverts across different ages and specifications, as of 5 November 2026.

A 2015 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £10,500: the median of the 35 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2015 Audi A6 Avant has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 25 October 2026 at £9,000. 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 5 November 2026: valid until 29 January 2027.

It has had 10 MOTs. The latest, on 30 January 2026, passed.

Advisories at the latest test: nearside front headlamp lens slightly defective; offside front BRAKE BACK PLATE LOOSE.

Mileage at that test: 106,657 miles, which matches the advertised 109,000 miles.

Advertised mileage is about 17,900 miles higher than the median mileage of a 2015 Audi A6 Avant on AskCar.

Similar cars

12 other 2015 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £7,590 to £14,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2015 Audi A6 Avant S Line, 2.0 diesel estate, blue. Mileage: 108,000 miles. Price: £9,090, £90 more than this car. Dealer: German Motors in Leeds. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-dd26ca2c515c
• 2015 Audi A6 Avant S Line, 2.0 diesel estate, blue. Mileage: 103,390 miles. Price: £9,299, £299 more than this car. Dealer: Junction 21 Motors in Weston-super-Mare. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-2cf36d221d63
• 2015 Audi A6 Avant S Line, 2.0 diesel estate, silver. Mileage: 115,649 miles. Price: £7,995, £1,005 less than this car. Dealer: Motor Express in Nelson. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-443867c2bae7

• The nearest: 2015 Audi A6 Avant S Line, 2.0 diesel estate, silver, 18 miles from this car. Mileage: 96,169 miles. Price: £9,899, £899 more than this car. Dealer: Autozone Essex in Chelmsford. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-14f13dddc248