2018 Audi A6 Avant 2.0 TDI Black Edition

Overview

• Make: Audi
• Model: A6 Avant
• Trim: Black Edition
• Version: 2.0 TDI Black Edition S tronic 4WD Euro 6 5dr (187 bhp)
• Year: 2018
• Mileage: 67,370 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Red
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Avant Black Edition has covered 67,370 miles, around 15,600 fewer miles than is typical for its age. Its asking price of £16,975 is £779 below the AskCar estimate of £17,754. The AskCar estimate draws on 778 Audi A6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 16 days ago, the asking price has dropped by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Junction 17 Cars Limited t/a Junction 17 Cars (Grantham), based in Grantham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £779 (4%) under the AskCar estimate of £17,754.

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 778 priced Audi A6 Avant adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £14,700: the median of the 50 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A6 Avant has been on sale for at least 16 days.

Price history

AskCar first saw this advert on 17 October 2026 at £17,475. Its asking price is now £16,975, £500 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 17 October 2026: £17,475
• 28 October 2026: £16,975

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 November 2026.

It has had 6 MOTs. The latest, on 1 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 64,394 miles, which matches the advertised 67,370 miles.

Advertised mileage is about 15,600 miles lower than the median mileage of a 2018 Audi A6 Avant on AskCar.

Similar cars

15 other 2018 Audi A6 Avant Black Edition 2.0 diesel automatic estates are for sale at UK dealers, from £11,995 to £21,495, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, white. Mileage: 66,614 miles. Price: £21,495, £4,520 more than this car. Dealer: Bainbridge Motoring in Perth. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-d9532f29fef1
• 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, red. Mileage: 64,000 miles. Price: £18,495, £1,520 more than this car. Dealer: Arrow Motor Company in Darlington. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-cb886a3b8498
• 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, black. Mileage: 56,333 miles. Price: £16,995, the same price as this car. Dealer: Hawco Elgin in Elgin. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-27f3779deed2

• The nearest: 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, grey, 11 miles from this car. Mileage: 87,000 miles. Price: £15,950, £1,025 less than this car. Dealer: Windmill Motors in Bourne. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-212e63df4dc5