2018 Audi A6 Avant 3.0 Black Edition
Price: £14,750. Fair price: £124 (under 1%) under the AskCar estimate of £14,874, 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: Black Edition
- Version: 3.0 TDI Black Edition S tronic 4WD Euro 6 5dr (268 bhp)
- Year: 2018
- Mileage: 106,000 miles
- Fuel: Diesel
- Body: Estate, 5 doors, 5 seats
- Engine: 3.0 litres, 268 bhp
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: Black
- CO2: 144 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi A6 Avant Black Edition has covered 106,000 miles, around 22,700 more miles than is typical for its age. The dealer is asking £14,750, which is £124 below the AskCar estimate of £14,874. To work out the AskCar estimate, we analyse UK dealer adverts for 785 Audi A6 Avant cars across different ages and specifications. It first appeared in our advert records 11 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is S and T Motor, based in Gateshead. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £124 (under 1%) under the AskCar estimate of £14,874.
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 2018 Audi A6 Avant with the 3.0 diesel engine is typically advertised at £18,600: the median of the 11 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2018 Audi A6 Avant has been on sale for at least 11 days.
Price history
AskCar first saw this advert on 25 October 2026 at £14,750. 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 15 February 2027.
It has had 7 MOTs. The latest, on 4 February 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 101,197 miles, which matches the advertised 106,000 miles.
Advertised mileage is about 22,700 miles higher than the median mileage of a 2018 Audi A6 Avant on AskCar.
Similar cars
4 other 2018 Audi A6 Avant Black Edition 3.0 diesel automatic estates are for sale at UK dealers, from £15,495 to £23,495, as of 5 November 2026.
The 3 closest to this car in mileage:
- 2018 Audi A6 Avant Black Edition, 3.0 diesel estate, blue. Mileage: 95,800 miles. Price: £18,595, £3,845 more than this car. Dealer: Brookfield Autos in Wigan. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-56adbd5c43d4
- 2018 Audi A6 Avant Black Edition, 3.0 diesel estate, blue. Mileage: 90,000 miles. Price: £15,495, £745 more than this car. Dealer: Yardley Motor Trade in Yardley. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-40dfa79d5baa
- 2018 Audi A6 Avant Black Edition, 3.0 diesel estate, blue. Mileage: 55,258 miles. Price: £20,000, £5,250 more than this car. Dealer: Savannah in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-6623e2aee9a2
Browse all Audi A6 Avant cars for sale · 2018 Audi A6 Avant price guide
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Photos
32 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.