2021 Audi A3

1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)

£18,510

Fair price: within 8% of the typical £18,859 for this model, age and mileage, drawing on 6,542 adverts of this make and model.

Overview

Make
Audi
Model
A3
Trim
S LINE
Version
1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
Mileage
36,169 miles
Year
2021
Fuel type
Petrol Hybrid
Body type
Hatchback
Engine
1.5 L
Gearbox
Automatic
Power
148 bhp
Seats
5
CO2
135 g/km
Colour
White
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

With 36,169 miles on the clock, this 2021 Audi A3 S Line has done roughly 6,700 fewer miles than a typical 2021 Audi A3. Our estimated market asking price is £18,859. This car is advertised at £18,510, which is £349 below that figure. Our estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £3,820 lower than when we first recorded the advert 21 days ago. Its MOT is recorded as valid until 24 October 2026. The advertised mileage is consistent with the latest MOT reading. It is for sale at Big Motoring World Blue Bell Hill in Chatham.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 2 October 2026, 21 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £3,820 from the first recorded £22,330. 12 price reductions recorded, the latest observed on 22 October 2026.

Recorded asking prices
Date observedAsking price
2 October 2026£22,330
3 October 2026£18,850
4 October 2026£18,840
6 October 2026£18,820
7 October 2026£18,830
8 October 2026£18,800
9 October 2026£18,790
10 October 2026£18,770
13 October 2026£18,750
14 October 2026£18,560
16 October 2026£18,540
18 October 2026£18,520
19 October 2026£18,510
21 October 2026£18,520
22 October 2026£18,510

Price and mileage comparison

Estimated market asking price: £18,859. The asking price is £349 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 6,542 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 6,700 miles lower than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 24 October 2026. 25,471 miles at the last test.

100 other cars with the same year, trim, gearbox and fuel are for sale from £11,995 to £21,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£11,995120,530 miles
£12,490111,668 miles
£12,995108,000 miles
£12,99957,000 miles
£13,290108,000 miles

These cars have covered 11,900–120,530 miles, compared with 36,169 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

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos