2021 Audi A3

1.4 13kWh TFSIe 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)

£18,400

Fair price: within 8% of the typical £19,747 for this model, age and mileage, drawing on 6,563 adverts of this make and model.

Overview

Make
Audi
Model
A3
Trim
S LINE
Version
1.4 13kWh TFSIe 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)
Mileage
19,757 miles
Year
2021
Fuel type
Petrol Plug-in Hybrid
Body type
Hatchback
Engine
1.4 L
Gearbox
Automatic
Power
201 bhp
Seats
5
CO2
29 g/km
Colour
White
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
S tronic
Engine badge
TFSIe
Hybrid type
Plug-in hybrid
Emissions standard
Euro 6

About this car

At 19,757 miles, this 2021 Audi A3 S Line has covered about 22,500 fewer miles than other 2021 Audi A3 cars. The dealer is asking £18,400, which is £1,347 below our market estimate of £19,747. Our estimate draws on 6,563 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 59 days. MOT records show an expiry date of 25 June 2027, and the latest recorded mileage is consistent with the advert. The seller is Hilton Car Supermarket Milton Keynes, based in Milton Keynes.

Stock data from 18 October 2026.

How we estimate prices and check cars

Price history

First seen on 21 August 2026, 59 days ago. Advert duration calculated on 19 October 2026.

Recorded asking prices
Date observedAsking price
21 August 2026£18,354
4 September 2026£18,635
5 September 2026£18,740
8 September 2026£18,745
9 September 2026£18,650
12 September 2026£18,595
18 September 2026£18,565
20 September 2026£18,635
22 September 2026£18,540
23 September 2026£18,545
29 September 2026£18,675
1 October 2026£18,660
4 October 2026£18,665
8 October 2026£18,460
14 October 2026£18,370
17 October 2026£18,400
18 October 2026£18,400

Price and mileage comparison

Estimated market asking price: £19,747. The asking price is £1,347 below 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 6,563 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 22,500 miles lower than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 25 June 2027. 19,667 miles at the last test.

35 other cars with the same year, trim, gearbox and fuel are for sale from £11,700 to £20,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£11,700111,314 miles
£11,85099,572 miles
£12,199110,158 miles
£12,44977,000 miles
£12,70091,000 miles

These cars have covered 18,021–111,314 miles, compared with 19,757 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

Similar cars for less

Dealer

Hilton Car Supermarket Milton Keynes, Milton Keynes. Across the dealer network: 827 cars for sale.

Dealer postcode: MK1 1BU.

Dealer opening hours

Monday
09:00-21:00
Tuesday
09:00-21:00
Wednesday
09:00-21:00
Thursday
09:00-21:00
Friday
09:00-21:00
Saturday
09:00-21:00
Sunday
10:00-18:00

Vehicle photos