2015 Audi A6 Avant 3.0 S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 3.0 TDI S Line S tronic 4WD Euro 6 5dr (268 bhp)
• Year: 2015
• Mileage: 50,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 268 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 50,000 miles on the clock, this 2015 Audi A6 Avant S Line has done roughly 41,100 fewer miles than a typical 2015 Audi A6 Avant. Its asking price of £18,000 is £1,069 above the AskCar estimate of £16,931. The AskCar estimate draws on 785 Audi A6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 148 days ago. The recorded MOT expired on 27 October 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Radley Motor Company in Garretts Green. 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: £1,069 (6%) over the AskCar estimate of £16,931.

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 148 days.

Price history

AskCar first saw this advert on 10 June 2026 at £18,000. 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: the latest record we hold ran out on 27 October 2026; ask the dealer for the current MOT.

It has had 8 MOTs. The latest, on 13 October 2025, passed.

Advisories at the latest test: nearside front brake hose has slight corrosion to ferrule; offside front brake hose has slight corrosion to ferrule; fluid leak, but not excessive rear differential leaking slightly; and 2 more.

Mileage at that test: 47,608 miles, which matches the advertised 50,000 miles.

Advertised mileage is about 41,100 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. Mileage: 61,941 miles. Price: £16,495, £1,505 less 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, white. Mileage: 25,000 miles. Price: £18,995, £995 more than this car. Dealer: Concordia Car Sales in Harlow. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-d28f7b98d3ac
• 2015 Audi A6 Avant S Line, 3.0 diesel estate, grey. Mileage: 90,262 miles. Price: £12,499, £5,501 less than this car. Dealer: Basford Motors in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-3b12aa6cd37d