2021 Audi A3

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

£16,989

Fair price: within 8% of the typical £16,913 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
57,000 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
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 S Line has covered 57,000 miles, around 14,000 more than typical for its age. Its asking price of £16,989 is £76 above our estimate of £16,913. We use UK dealer asking prices, including 6,542 Audi A3 listings, and account for the car’s age, mileage and specification. The asking price is now £460 lower than when we first recorded the advert 58 days ago. Its MOT is recorded as valid until 5 January 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by Autoworld Norbury ( London) in Streatham.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 25 August 2026, 58 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £460 from the first recorded £17,449. 7 price reductions recorded, the latest observed on 30 September 2026.

Recorded asking prices
Date observedAsking price
25 August 2026£17,449
27 August 2026£17,439
29 August 2026£17,389
13 September 2026£17,349
17 September 2026£17,340
19 September 2026£17,249
28 September 2026£16,989
29 September 2026£17,489
30 September 2026£16,989
21 October 2026£16,989

Price and mileage comparison

Estimated market asking price: £16,913. The asking price is £76 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 6,542 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 14,000 miles higher than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 5 January 2027. 52,952 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 57,000 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