2018 Audi A6 Avant 2.0 TDI ultra Black Edition

Overview

• Make: Audi
• Model: A6 Avant
• Trim: Black Edition
• Version: 2.0 TDI ultra Black Edition S tronic FWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 83,606 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 121 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 Audi A6 Avant Black Edition is 83,606 miles. Its asking price of £14,225 is £873 below the AskCar estimate of £15,098. To work out the AskCar estimate, we analyse UK dealer adverts for 778 Audi A6 Avant cars across different ages and specifications. We first recorded this advert 46 days ago, and its asking price has since fallen by £1,025. Its advertised mileage matches the government's MOT record. The seller is JCT600 Boston Audi, based in Boston. 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: £873 (5%) under the AskCar estimate of £15,098.

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 46 days.

Price history

AskCar first saw this advert on 17 September 2026 at £15,250. Its asking price is now £14,225, £1,025 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 22 September 2026: £15,250
• 26 September 2026: £14,931
• 7 October 2026: £14,631
• 12 October 2026: £14,436
• 20 October 2026: £14,260
• 21 October 2026: £14,566
• 27 October 2026: £14,225

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 26 April 2027.

It has had 8 MOTs. The latest, on 24 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 78,370 miles, which matches the advertised 83,606 miles.

Advertised mileage is about 700 miles higher 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: 82,921 miles. Price: £15,249, £1,024 more than this car. Dealer: Pine Lodge Cars in Whitchurch. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-7625802f67f4
• 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, red. Mileage: 80,784 miles. Price: £14,649, £424 more than this car. Dealer: Greendale Car Sales in Hawick. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-08f5a7fe54b5
• 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, white. Mileage: 80,568 miles. Price: £15,790, £1,565 more than this car. Dealer: Stratstone Tamworth Audi in Tamworth. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-69ae9dbd99d8

• The nearest: 2018 Audi A6 Avant Black Edition, 2.0 diesel estate, grey, 17 miles from this car. Mileage: 87,000 miles. Price: £15,950, £1,725 more than this car. Dealer: Windmill Motors in Bourne. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-212e63df4dc5