2021 Audi A3
1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
£18,490
Fair price: within 8% of the typical £17,829 for this model, age and mileage, drawing on 6,419 adverts of this make and model.
Overview
- Make
- Audi
- Model
- A3
- Trim
- S LINE
- Version
- 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
- Mileage
- 30,286 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- Hatchback
- Engine
- 1.5 L
- Gearbox
- Manual
- Power
- 148 bhp
- Seats
- 5
- CO2
- 136 g/km
- Colour
- White
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Engine badge
- TFSI
- Emissions standard
- Euro 6
About this car
At 30,286 miles, this 2021 Audi A3 S Line has covered about 13,300 fewer miles than other 2021 Audi A3 cars. The dealer is asking £18,490, which is £661 above our market estimate of £17,829. To estimate its market asking price, we analyse UK dealer adverts for 6,419 Audi A3 cars across different ages and specifications. We first recorded this car for sale 3 days ago. MOT records show an expiry date of 9 December 2026, and the latest recorded mileage is consistent with the advert. It is for sale at Harwoods Southampton Audi in Chandlers Ford.
Stock data from 26 October 2026.
Price history
First seen on 24 October 2026, 3 days ago. Advert duration calculated on 27 October 2026.
| Date observed | Asking price |
|---|---|
| 24 October 2026 | £18,490 |
| 26 October 2026 | £18,490 |
Price and mileage comparison
Estimated market asking price: £17,829. The asking price is £661 above this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 6,419 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 13,300 miles lower than typical for a 2021 Audi A3.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT valid until 9 December 2026. 24,795 miles at the last test.
42 other cars with the same year, trim, gearbox and fuel are for sale from £12,995 to £18,399.
| Asking price | Mileage |
|---|---|
| £12,995 | 84,920 miles |
| £13,799 | 78,694 miles |
| £14,200 | 52,604 miles |
| £14,495 | 71,881 miles |
| £14,950 | 42,000 miles |
These cars have covered 17,350–84,920 miles, compared with 30,286 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
More like this
- Used Audi A3 for sale under £20,000
- Used manual Audi A3 for sale
- Used petrol Audi A3 for sale
- Used Audi A3 for sale near Southampton
How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.
Vehicle photos
AskCar lists 579,238 cars from 12,980 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.