2021 Audi A4 Avant 2.0 TFSI S Line
Price: £18,999. Good value: £2,385 (11%) under the AskCar estimate of £21,384, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,251 priced Audi A4 Avant adverts on AskCar as of 5 November 2026.
AskCar lists 1,308 used Audi A4 Avant from 859 UK dealerships, as of 5 November 2026.
Overview
- Make: Audi
- Model: A4 Avant
- Trim: S Line
- Version: 2.0 TFSI S Line S tronic Euro 6 5dr
- Year: 2021
- Mileage: 36,190 miles
- Fuel: Petrol
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres
- Gearbox: Automatic (S tronic)
- Colour: White
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 36,190 miles on the clock, this 2021 Audi A4 Avant S Line has done roughly 21,800 fewer miles than a typical 2021 Audi A4 Avant. The AskCar estimate for this car is £21,384. It is priced at £18,999, which is £2,385 below that estimate. The AskCar estimate uses 1,251 UK dealer adverts for the Audi A4 Avant, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 40 days ago. You can find this car at Fresh Motors in Thetford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Good value: £2,385 (11%) under the AskCar estimate of £21,384.
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 1,251 priced Audi A4 Avant adverts across different ages and specifications, as of 5 November 2026.
A 2021 Audi A4 Avant with the 2.0 petrol engine is typically advertised at £18,500: the median of the 95 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2021 Audi A4 Avant has been on sale for at least 40 days.
Price history
AskCar first saw this advert on 26 September 2026 at £18,999. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 21,800 miles lower than the median mileage of a 2021 Audi A4 Avant on AskCar.
Similar cars
5 other 2021 Audi A4 Avant S Line 2.0 petrol automatic estates are for sale at UK dealers, from £17,193 to £21,995, as of 5 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, black. Mileage: 37,139 miles. Price: £21,995, £2,996 more than this car. Dealer: JMS Cars in Staines. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-54021a407932
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, white. Mileage: 39,000 miles. Price: £18,995, the same price as this car. Dealer: GT Motors in Saffron Walden. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-152cd45d635b
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, white. Mileage: 51,190 miles. Price: £17,990, £1,009 less than this car. Dealer: Quattro Tech Cars in St Ives. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-67eaabc0f044
Browse all Audi A4 Avant cars for sale · 2021 Audi A4 Avant price guide
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Photos
55 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.