2018 Audi A6 Avant 3.0 BiTDI V6 Black Edition

Price: £18,595. Fair price: £521 (2%) over the AskCar estimate of £18,074, our expected asking price for this car from its model, age, mileage and specification, drawing on 774 priced Audi A6 Avant adverts on AskCar as of 4 November 2026.

AskCar lists 794 used Audi A6 Avant from 586 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: A6 Avant
  • Trim: Black Edition
  • Version: 3.0 BiTDI V6 Black Edition Tiptronic 4WD Euro 6 (s/s) 5dr (316 bhp)
  • Year: 2018
  • Mileage: 95,800 miles
  • Fuel: Diesel
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 316 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Blue
  • CO2: 169 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Avant Black Edition has covered 95,800 miles, around 12,200 more miles than is typical for its age. The AskCar estimate for this car is £18,074. It is priced at £18,595, which is £521 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 774 Audi A6 Avant cars across different ages and specifications. This car was first seen in our listings data 160 days ago. The latest recorded MOT expiry date is 28 January 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Brookfield Autos in Wigan. 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: £521 (2%) over the AskCar estimate of £18,074.

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 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,595. 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 4 November 2026: the latest record we hold ran out on 28 January 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 21 January 2025, passed.

Advisories at the latest test: nearside front inner tyre worn close to legal limit/worn on edge.

Mileage at that test: 92,230 miles, which matches the advertised 95,800 miles.

Advertised mileage is about 12,200 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: 90,000 miles. Price: £15,495, £3,100 less 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, black. Mileage: 106,000 miles. Price: £14,750, £3,845 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, £1,405 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

More like this

Photos

96 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.