2021 Audi A6 Avant 2.0 TFSI S Line
Price: £21,499. Fair price: £1,797 (7%) under the AskCar estimate of £23,296, our expected asking price for this car from its model, age, mileage and specification, drawing on 789 priced Audi A6 Avant adverts on AskCar as of 7 November 2026.
AskCar lists 813 used Audi A6 Avant from 595 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: A6 Avant
- Trim: S Line
- Version: 2.0 40 TFSI S Line S tronic FWD Euro 6 5dr (201 bhp)
- Year: 2021
- Mileage: 42,025 miles
- Fuel: Petrol
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres, 201 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Red
- CO2: 169 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 42,025 miles, this 2021 Audi A6 Avant S Line has covered about 8,600 fewer miles than other 2021 Audi A6 Avant cars. Priced at £21,499, it is advertised £1,797 below the AskCar estimate of £23,296. The AskCar estimate uses 789 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Lookers in Newtownabbey. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £1,797 (7%) under the AskCar estimate of £23,296.
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 789 priced Audi A6 Avant adverts across different ages and specifications, as of 7 November 2026.
A 2021 Audi A6 Avant with the 2.0 petrol engine is typically advertised at £22,900: the median of the 37 for sale on AskCar, as of 7 November 2026.
Time on sale
AskCar first saw this 2021 Audi A6 Avant advertised today. About 6 in 10 of 2021 Audi A6 Avant cars are gone from sale within a month of being advertised: 36 of the 63 first advertised between 13 July 2026 and 4 October 2026.
Price history
AskCar first saw this advert on 7 November 2026 at £21,499. 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 7 November 2026: valid until 7 June 2027.
It has had 4 MOTs. The latest, on 8 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 38,475 miles, which matches the advertised 42,025 miles.
Advertised mileage is about 8,600 miles lower than the median mileage of a 2021 Audi A6 Avant on AskCar.
Similar cars
1 other 2021 Audi A6 Avant S Line 2.0 petrol automatic estate is for sale at UK dealers, as of 7 November 2026.
The closest to this car in mileage:
- 2021 Audi A6 Avant S Line, 2.0 petrol estate, white. Mileage: 50,250 miles. Price: £21,495, the same price as this car. Dealer: Somerset Motor Company in Weston-super-Mare. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-c4eb3c6dcf3c
Browse all Audi A6 Avant cars for sale · 2021 Audi A6 Avant price guide
More like this
- Used Audi A6 Avant S Line prices
- Used Audi A6 Avant for sale under £30,000
- Used petrol Audi A6 Avant for sale
- Used Audi A6 Avant for sale near Belfast
Photos
32 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.