2015 Audi A6 Avant 3.0 BiTDI V6 S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 3.0 BiTDI V6 S Line Tiptronic 4WD Euro 6 (s/s) 5dr (316 bhp)
• Year: 2015
• Mileage: 104,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 316 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 104,000 miles on the clock, this 2015 Audi A6 Avant S Line has done roughly 11,000 more miles than a typical 2015 Audi A6 Avant. The AskCar estimate for this car is £11,968. It is priced at £12,000, which is £32 above that estimate. The AskCar estimate uses 779 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 1 day ago. Its advertised mileage matches the government's MOT record. You can find this car at Quantum Cars in Romford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £32 (under 1%) over the AskCar estimate of £11,968.

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 779 priced Audi A6 Avant adverts across different ages and specifications, as of 12 November 2026.

A 2015 Audi A6 Avant with the 3.0 diesel engine is typically advertised at £13,500: the median of the 17 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2015 Audi A6 Avant advertised 1 day ago. About 3 in 10 of 2015 Audi A6 Avant cars are gone from sale within a month of being advertised: 16 of the 51 first advertised between 14 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £12,000. 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 12 November 2026: valid until 17 June 2027.

It has had 10 MOTs. The latest, on 29 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 101,795 miles, which matches the advertised 104,000 miles.

Advertised mileage is about 11,000 miles higher than the median mileage of a 2015 Audi A6 Avant on AskCar.

Similar cars

5 other 2015 Audi A6 Avant S Line 3.0 diesel automatic estates are for sale at UK dealers, from £10,990 to £18,995, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2015 Audi A6 Avant S Line, 3.0 diesel estate, blue. Mileage: 114,000 miles. Price: £10,990, £1,010 less than this car. Dealer: Best4U Motors in Brentwood. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-e68770393dc3
• 2015 Audi A6 Avant S Line, 3.0 diesel estate, grey. Mileage: 90,262 miles. Price: £12,499, £499 more than this car. Dealer: Basford Motors in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-3b12aa6cd37d
• 2015 Audi A6 Avant S Line, 3.0 diesel estate. Mileage: 61,941 miles. Price: £16,495, £4,495 more than this car. Dealer: Billzo Motors in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-09485a905ce9