2021 Audi A3

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

£16,600

Fair price: within 8% of the typical £16,997 for this model, age and mileage, drawing on 6,423 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
57,500 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
White
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

This 2021 Audi A3 S Line has covered 57,500 miles, around 14,000 more than typical for its age. Our estimated market asking price is £16,997. This car is advertised at £16,600, which is £397 below that figure. The estimate uses 6,423 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 1 day. You can find this car at K Motors London in New Malden.

Stock data from 28 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 October 2026, 1 days ago. Advert duration calculated on 29 October 2026.

Recorded asking prices
Date observedAsking price
28 October 2026£16,600

Price and mileage comparison

Estimated market asking price: £16,997. The asking price is £397 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 6,423 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.

101 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
£11,995108,000 miles
£11,995120,530 miles
£12,99957,000 miles
£13,290108,000 miles

These cars have covered 11,900–120,530 miles, compared with 57,500 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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