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: 51,550 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2019 Audi A6 Avant S Line has covered 51,550 miles, around 28,000 fewer miles than is typical for its age. The dealer is asking £20,450, which is £3,979 below the AskCar estimate of £24,429. To work out the AskCar estimate, we analyse UK dealer adverts for 778 Audi A6 Avant cars across different ages and specifications. We first saw this car advertised 109 days ago. Its asking price has since fallen by £3,050. The government's MOT record matches its advertised mileage. You can find this car at Car Planet Watford in Rickmansworth. 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

Good value: £3,979 (16%) under the AskCar estimate of £24,429.

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 109 days.

Price history

AskCar first saw this advert on 16 July 2026 at £23,500. Its asking price is now £20,450, £3,050 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 16 July 2026: £23,500
• 19 August 2026: £23,200
• 25 August 2026: £22,900
• 3 September 2026: £23,000
• 9 September 2026: £22,700
• 15 September 2026: £22,400
• 22 September 2026: £22,100
• 28 September 2026: £21,800
• 5 October 2026: £21,500
• 11 October 2026: £21,350
• 17 October 2026: £21,050
• 26 October 2026: £20,750
• 1 November 2026: £20,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 4 March 2027.

It has had 7 MOTs. The latest, on 5 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 48,755 miles, which matches the advertised 51,550 miles.

Advertised mileage is about 28,000 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, black. Mileage: 47,000 miles. Price: £24,990, £4,540 more than this car. Dealer: Elite Cars Scotland in Wishaw. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-51e899f696c3
• 2019 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 60,000 miles. Price: £22,500, £2,050 more than this car. Dealer: Whitethor Cars in Coalville. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-9ca91076de59
• 2019 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 69,000 miles. Price: £21,750, £1,300 more than this car. Dealer: Manchester Performance Cars in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-eb7a431d6975

• The nearest: 2019 Audi A6 Avant S Line, 3.0 diesel estate, black, 12 miles from this car. Mileage: 81,243 miles. Price: £19,700, £750 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-a4c52e2c1ab7