2015 Audi A6 Avant 3.0 S Line
Price: £12,499. Fair price: £484 (4%) over the AskCar estimate of £12,015, our expected asking price for this car from its model, age, mileage and specification, drawing on 785 priced Audi A6 Avant adverts on AskCar as of 5 November 2026.
AskCar lists 810 used Audi A6 Avant from 596 UK dealerships, as of 5 November 2026.
Overview
- Make: Audi
- Model: A6 Avant
- Trim: S Line
- Version: 3.0 TDI S Line S tronic 4WD Euro 6 5dr
- Year: 2015
- Mileage: 90,262 miles
- Fuel: Diesel
- Body: Estate, 5 doors, 5 seats
- Engine: 3.0 litres
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 138 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2015 Audi A6 Avant S Line has covered 90,262 miles. The dealer is asking £12,499, which is £484 above the AskCar estimate of £12,015. 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 35 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Basford Motors in Stoke-on-Trent. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £484 (4%) over the AskCar estimate of £12,015.
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 3.0 diesel engine is typically advertised at £14,000: the median of the 15 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2015 Audi A6 Avant has been on sale for at least 35 days.
Price history
AskCar first saw this advert on 1 October 2026 at £12,499. 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 30 September 2027.
It has had 11 MOTs. The latest, on 1 October 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 90,272 miles, which matches the advertised 90,262 miles.
Advertised mileage is about 900 miles lower than the median mileage of a 2015 Audi A6 Avant on AskCar.
Similar cars
4 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 5 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, £1,509 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. Mileage: 61,941 miles. Price: £16,495, £3,996 more than this car. Dealer: Billzo Motors in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-09485a905ce9
- 2015 Audi A6 Avant S Line, 3.0 diesel estate, blue. Mileage: 50,000 miles. Price: £18,000, £5,501 more than this car. Dealer: Radley Motor Company in Birmingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-fdb9a4212ef3
Browse all Audi A6 Avant cars for sale · 2015 Audi A6 Avant price guide
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- Used Audi A6 Avant for sale near Stoke-on-Trent
Photos
87 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.