2021 Audi A3 TDI
Price: £16,595. Good value: £2,640 (13%) under the AskCar estimate of £19,235, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,630 priced Audi A3 adverts on AskCar as of 4 November 2026.
AskCar lists 6,774 used Audi A3 from 2,309 UK dealerships, as of 4 November 2026.
Overview
- Make: Audi
- Model: A3
- Version: S tronic Euro 6 5dr
- Year: 2021
- Mileage: 70,055 miles
- Fuel: Diesel
- Body: Hatchback, 5 doors, 5 seats
- Gearbox: Automatic (S tronic)
- Colour: Blue
- CO2: 121 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 70,055 miles, this 2021 Audi A3 has covered about 26,800 more miles than other 2021 Audi A3 cars. Its asking price of £16,595 is £2,640 below the AskCar estimate of £19,235. The AskCar estimate uses 6,630 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 35 days ago. Its asking price has since fallen by £305. The government's MOT record matches its advertised mileage. It is advertised by Rallysport Automotive in Colchester. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Good value: £2,640 (13%) under the AskCar estimate of £19,235.
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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.
Time on sale
This 2021 Audi A3 has been on sale for at least 35 days.
Price history
AskCar first saw this advert on 30 September 2026 at £16,900. Its asking price is now £16,595, £305 less. The latest price cut was seen on 4 November 2026.
Price changes recorded:
- 30 September 2026: £16,900
- 15 October 2026: £16,695
- 31 October 2026: £16,645
- 4 November 2026: £16,595
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 18 February 2027.
It has had 4 MOTs. The latest, on 18 February 2026, passed.
Advisories at the latest test: brake fluid close to minimum mark; nearside front upper windscreen damaged but not adversely affecting driver's view.
Mileage at that test: 61,917 miles, which matches the advertised 70,055 miles.
Advertised mileage is about 26,800 miles higher than the median mileage of a 2021 Audi A3 on AskCar.
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
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Photos
52 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.