2021 Audi A3

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

51,176 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

This 2021 Audi A3 S Line has covered 51,176 miles, around 8,400 more than typical for its age. At £17,495, it is advertised £179 below our estimated market asking price of £17,674. To estimate its market asking price, we analyse UK dealer adverts for 6,484 Audi A3 cars across different ages and specifications. It first appeared in our advert records 7 days ago. The latest MOT record shows an expiry date of 30 March 2027, with the advertised mileage consistent with the recorded reading. It is for sale at NSA Motor Vehicles in Milton Keynes.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £17,674. The asking price is £179 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 8,400 miles higher than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.