2019 Audi A6 Avant 3.0 TDI V6 S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 5dr (282 bhp)
• Year: 2019
• Mileage: 75,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Red
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 75,000 miles, this 2019 Audi A6 Avant S Line has covered about 4,500 fewer miles than other 2019 Audi A6 Avant cars. The dealer is asking £20,999, which is £145 above the AskCar estimate of £20,854. 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 car for sale 96 days ago. The recorded MOT expired on 9 August 2026, so ask the dealer whether it has been renewed. Its advertised mileage matches the government's MOT record. It is for sale at AB Car Sales in Gunnislake. 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: £145 (under 1%) over the AskCar estimate of £20,854.

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 2019 Audi A6 Avant with the 3.0 diesel engine is typically advertised at £21,100: the median of the 16 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2019 Audi A6 Avant has been on sale for at least 96 days.

Price history

AskCar first saw this advert on 29 July 2026 at £20,999. 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 2 November 2026: the latest record we hold ran out on 9 August 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 8 August 2025, passed.

Advisories at the latest test: front brake pad(s) wearing thin; nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; and 2 more.

Mileage at that test: 73,894 miles, which matches the advertised 75,000 miles.

Advertised mileage is about 4,500 miles lower than the median mileage of a 2019 Audi A6 Avant on AskCar.

Similar cars

7 other 2019 Audi A6 Avant S Line 3.0 diesel automatic estates are for sale at UK dealers, from £19,700 to £24,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2019 Audi A6 Avant S Line, 3.0 diesel estate, white. Mileage: 71,000 miles. Price: £20,995, the same price as this car. Dealer: Cars of Conwy in Colwyn Bay. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-4834de20f8fb
• 2019 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 69,000 miles. Price: £21,750, £751 more than this car. Dealer: Manchester Performance Cars in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-eb7a431d6975
• 2019 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 81,243 miles. Price: £19,700, £1,299 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-a4c52e2c1ab7

• The nearest: 2019 Audi A6 Avant S Line, 3.0 diesel estate, black, 183 miles from this car. Mileage: 51,550 miles. Price: £20,450, £549 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-4c75ccb1eb93