2021 Audi A3

1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)

£18,290

Fair price: within 8% of the typical £17,938 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 S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
Mileage
48,339 miles
Year
2021
Fuel type
Petrol Hybrid
Body type
Saloon
Engine
1.5 L
Gearbox
Automatic
Power
148 bhp
Seats
5
CO2
131 g/km
Colour
Black
Doors
4
Driven wheels
Front Wheel Drive
Gearbox version
S tronic
Engine badge
TFSI
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 48,339 miles, this 2021 Audi A3 S Line has covered about 4,700 more miles than other 2021 Audi A3 cars. Our estimated market asking price is £17,938. This car is advertised at £18,290, which is £352 above that figure. Our estimate draws on 6,419 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £60 lower than when we first recorded the advert 25 days ago. Its recorded MOT is valid until 22 June 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Sinclair Audi Approved Neyland, based in Neyland.

Stock data from 26 October 2026.

How we estimate prices and check cars

Price history

First seen on 2 October 2026, 25 days ago. Advert duration calculated on 27 October 2026. Net asking-price reduction: £60 from the first recorded £18,350. 1 price reduction recorded, the latest observed on 13 October 2026.

Recorded asking prices
Date observedAsking price
2 October 2026£18,350
13 October 2026£18,290
26 October 2026£18,290

Price and mileage comparison

Estimated market asking price: £17,938. The asking price is £352 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 4,700 miles higher than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 22 June 2027. 44,122 miles at the last test.

100 other cars with the same year, trim, gearbox and fuel are for sale from £11,990 to £21,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£11,990111,668 miles
£11,995120,530 miles
£12,995108,000 miles
£12,99957,000 miles
£13,290108,000 miles

These cars have covered 11,900–120,530 miles, compared with 48,339 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

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