2020 Audi A6 Avant 2.0 TDI S Line
Version: 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 5dr (201 bhp)
Price: £17,499. Fair price: £1,317 (7%) under the AskCar estimate of £18,816, our expected asking price for this car from its model, age, mileage and specification, drawing on 763 priced Audi A6 Avant adverts on AskCar as of 30 October 2026.
AskCar lists 779 used Audi A6 Avant from 566 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- A6 Avant
- Trim
- S Line
- Version
- 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 5dr (201 bhp)
- Mileage
- 73,000 miles
- Year
- 2020
- Fuel type
- Diesel
- Body type
- Estate
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 201 bhp
- Seats
- 5
- CO2
- 124 g/km
- Colour
- Grey
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TDI
- Emissions standard
- Euro 6
About this car
This 2020 Audi A6 Avant S Line has covered 73,000 miles. Priced at £17,499, it is advertised £1,317 below the AskCar estimate of £18,816. To work out the AskCar estimate, we analyse UK dealer adverts for 763 Audi A6 Avant cars across different ages and specifications. This car was first seen in our listings data today. MOT records show an expiry date of 24 April 2027, and the latest recorded mileage is consistent with the advert. The seller is Hendy Car Store Portsmouth, based in Portsmouth.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £17,499 |
Price and mileage comparison
Fair price: £1,317 (7%) under the AskCar estimate of £18,816.
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 763 priced Audi A6 Avant adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 1,000 miles lower than the median mileage of a 2020 Audi A6 Avant on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 24 April 2027. 65,012 miles at the last test.
Other matching cars
12 other 2020 Audi A6 Avant S Line automatic diesel cars are for sale at UK dealers from £15,290 to £23,000, as of 30 October 2026.
The 5 cheapest:
- 2020 Audi A6 Avant. Price: £15,290. Mileage: 108,966 miles. Dealer: Anchor Cars in Reading. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-3f2a00f63d4d
- 2020 Audi A6 Avant. Price: £15,490. Mileage: 98,000 miles. Dealer: Mawsley Motor Company in Northampton. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-f7d045ba0d11
- 2020 Audi A6 Avant. Price: £15,899. Dealer: MSK Cars in London. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-ae137c383a3f
- 2020 Audi A6 Avant. Price: £16,995. Mileage: 72,692 miles. Dealer: Banks Of The Tyne Motor Company in Hebburn. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-9187a355dc32
- 2020 Audi A6 Avant. Price: £17,250. Mileage: 81,112 miles. Dealer: Drive Motor Retail drivedirect Leamington in Leamington Spa. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-c4447a9087ee
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A6 Avant cars for sale · 2020 Audi A6 Avant price guide
More like this
Photos
54 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.