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

46,404 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

Yellow

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 46,404 miles, around 3,600 more than typical for its age. At £16,190, it is advertised £730 below our estimated market asking price of £16,920. 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 81 days ago. Its asking price has since fallen by £435. That may be worth mentioning if you discuss the price with the dealer. MOT records show an expiry date of 25 November 2026, and the latest recorded mileage is consistent with the advert. The seller is Sidegate Motors, based in Great Yarmouth.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £16,920. The asking price is £730 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 3,600 miles higher than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.