2021 Audi A3 1.5 TFSI
Version: 1.5 35 TFSI S tronic FWD Euro 6 5dr (148 bhp)
Price: £20,750. Fair price: £356 (1%) over the AskCar estimate of £20,394, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,475 priced Audi A3 adverts on AskCar as of 30 October 2026.
AskCar lists 6,654 used Audi A3 from 2,240 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- A3
- Version
- 1.5 35 TFSI S tronic FWD Euro 6 5dr (148 bhp)
- Mileage
- 41,000 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- Hatchback
- Engine
- 1.5 L
- Gearbox
- Automatic
- Power
- 148 bhp
- Seats
- 5
- CO2
- 137 g/km
- Colour
- Blue
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TFSI
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
This 2021 Audi A3 is advertised with 41,000 miles, approximately 2,500 below the typical mileage for its age. Priced at £20,750, it is advertised £356 above the AskCar estimate of £20,394. To work out the AskCar estimate, we analyse UK dealer adverts for 6,475 Audi A3 cars across different ages and specifications. It first appeared in our advert records today. Its recorded MOT is valid until 27 May 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Mon Motors Cardiff Audi, based in Cardiff.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £20,750 |
Price and mileage comparison
Fair price: £356 (1%) over the AskCar estimate of £20,394.
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 6,475 priced Audi A3 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 2,500 miles lower than the median mileage of a 2021 Audi A3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 27 May 2027. 39,042 miles at the last test.
Other matching cars
51 other 2021 Audi A3 automatic petrol cars are for sale at UK dealers from £14,360 to £29,000, as of 30 October 2026.
The 5 cheapest:
- 2021 Audi A3. Price: £14,360. Mileage: 96,035 miles. Dealer: Evans Halshaw Ford Preston in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2021-f8a894c5c762
- 2021 Audi A3. Price: £16,995. Mileage: 70,462 miles. Dealer: Autosales Of Kirriemuir in Kirriemuir. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a2e2c6e42cca
- 2021 Audi A3. Price: £17,690. Mileage: 73,000 miles. Dealer: Motorsound in Oldham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-c9352c31a38b
- 2021 Audi A3. Price: £17,999. Mileage: 74,823 miles. Dealer: Croyland Car Megastore in Rushden. AskCar page: https://askcar.co.uk/car/audi-a3-2021-301da142a758
- 2021 Audi A3. Price: £17,999. Mileage: 67,086 miles. Dealer: Motor Sales Kirkcaldy in Kirkcaldy. AskCar page: https://askcar.co.uk/car/audi-a3-2021-6eed79ea7d4a
The 51 matching cars have covered 8,200 to 96,035 miles, compared with 41,000 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
More like this
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.