2021 Audi A4 Avant 2.0 TFSI S Line
Price: £15,995. Fair price: £288 (1%) over the AskCar estimate of £15,707, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,226 priced Audi A4 Avant adverts on AskCar as of 8 November 2026.
AskCar lists 1,287 used Audi A4 Avant from 852 UK dealerships, as of 8 November 2026.
Overview
- Make: Audi
- Model: A4 Avant
- Trim: S Line
- Version: 2.0 TFSI S Line S tronic FWD Euro 6 5dr (147 bhp)
- Year: 2021
- Mileage: 71,956 miles
- Fuel: Petrol
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres, 147 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Grey
- CO2: 158 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi A4 Avant S Line is advertised with 71,956 miles, approximately 13,000 above the typical mileage for its age. Its asking price of £15,995 is £288 above the AskCar estimate of £15,707. The AskCar estimate uses 1,226 UK dealer adverts for the Audi A4 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. MOT records show an expiry date of 11 January 2027. It is advertised by Macmillan Motor Company in Middlesbrough. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Fair price: £288 (1%) over the AskCar estimate of £15,707.
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 1,226 priced Audi A4 Avant adverts across different ages and specifications, as of 8 November 2026.
A 2021 Audi A4 Avant with the 2.0 petrol engine is typically advertised at £18,400: the median of the 94 for sale on AskCar, as of 8 November 2026.
Time on sale
AskCar first saw this 2021 Audi A4 Avant advertised today. About half of 2021 Audi A4 Avant cars are gone from sale within a month of being advertised: 50 of the 111 first advertised between 11 July 2026 and 5 October 2026.
Price history
AskCar first saw this advert on 8 November 2026 at £15,995. 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 8 November 2026: valid until 11 January 2027.
Advertised mileage is about 13,000 miles higher than the median mileage of a 2021 Audi A4 Avant on AskCar.
Similar cars
6 other 2021 Audi A4 Avant S Line 2.0 petrol automatic estates are for sale at UK dealers, from £17,185 to £21,995, as of 8 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, grey. Mileage: 68,108 miles. Price: £17,193, £1,198 more than this car. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-c57ee0b2812e
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, black. Mileage: 60,311 miles. Price: £17,185, £1,190 more than this car. Dealer: Carsa Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-d87d9b7685b3
- 2021 Audi A4 Avant S Line, 2.0 petrol estate, white. Mileage: 51,190 miles. Price: £17,990, £1,995 more 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
42 photos of this car are on its AskCar page.
As of 8 November 2026, AskCar lists 595,762 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.