2018 Audi A6 Avant 3.0 Black Edition

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: 90,000 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: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Avant Black Edition has covered 90,000 miles. Its asking price of £15,495 is £1,156 below the AskCar estimate of £16,651. The AskCar estimate uses UK dealer asking prices, including 774 Audi A6 Avant adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 146 days ago, the asking price has dropped by £1,000. The last MOT shows 90,787 miles, more than the advert. This is worth checking with the dealer. Its recorded MOT is valid until 10 June 2027. It is advertised by Yardley Motor Trade in Birmingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,156 (6%) under the AskCar estimate of £16,651.

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 774 priced Audi A6 Avant adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A6 Avant with the 3.0 diesel engine is typically advertised at £17,800: the median of the 10 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Audi A6 Avant has been on sale for at least 146 days.

Price history

AskCar first saw this advert on 11 June 2026 at £16,495. Its asking price is now £15,495, £1,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 27 June 2026: £16,495
• 12 September 2026: £15,995
• 27 October 2026: £15,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 10 June 2027.

It has had 8 MOTs. The latest, on 11 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 90,787 miles. The advert says 90,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 6,400 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 £14,750 to £23,495, as of 4 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, £3,100 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, black. Mileage: 106,000 miles. Price: £14,750, £745 less than this car. Dealer: S and T Motor in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-4522a1f15ad3
• 2018 Audi A6 Avant Black Edition, 3.0 diesel estate, blue. Mileage: 55,258 miles. Price: £20,000, £4,505 more than this car. Dealer: Savannah in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-6623e2aee9a2