2021 Audi A3

Overview

Make

Audi

Model

A3

Trim

S LINE

Version

1.0 30 TFSI S Line S tronic FWD Euro 6 4dr (108 bhp)

Mileage

43,783 miles

Year

2021

Fuel type

Petrol Hybrid

Body type

Saloon

Engine

1.0 L

Gearbox

Automatic

Power

108 bhp

Seats

5

CO2

120 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

This 2021 Audi A3 S Line has covered 43,783 miles. Its asking price of £16,640 is £516 below our estimate of £17,156. The estimate uses 6,484 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 47 days ago. Its asking price has since fallen by £150. MOT records show an expiry date of 29 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Days Motorpark Cardiff, based in Cardiff.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £17,156. The asking price is £516 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 6,484 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 1,000 miles higher than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.