2021 Audi S4 Avant
Price: £28,990. Fair price: £645 (2%) under the AskCar estimate of £29,635, our expected asking price for this car from its model, age, mileage and specification, drawing on 126 priced Audi S4 Avant adverts on AskCar as of 7 November 2026.
AskCar lists 128 used Audi S4 Avant from 118 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: S4 Avant
- Version: 4WD 5dr
- Year: 2021
- Mileage: 17,000 miles
- Body: Estate, 5 doors, 5 seats
- Drive: Four-wheel drive
- Colour: Grey
About this car
This 2021 Audi S4 Avant is advertised with 17,000 miles on the clock. Its asking price of £28,990 is £645 below the AskCar estimate of £29,635. The AskCar estimate draws on 126 Audi S4 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 35 days ago. Ask the dealer why the advert shows fewer miles than the 17,605 recorded at the latest MOT. The latest recorded MOT expires on 29 September 2027. It is for sale at Taylor's Select Cars in Dunmow. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £645 (2%) under the AskCar estimate of £29,635.
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 126 priced Audi S4 Avant adverts across different ages and specifications, as of 7 November 2026.
Time on sale
This 2021 Audi S4 Avant has been on sale for at least 35 days.
Price history
AskCar first saw this advert on 3 October 2026 at £28,990. 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 29 September 2027.
It has had 3 MOTs. The latest, on 16 September 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 17,605 miles. The advert says 17,000 miles, fewer than the MOT record, so ask the dealer which is right.
Browse all Audi S4 Avant cars for sale · 2021 Audi S4 Avant price guide
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Photos
36 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.