2021 Audi A4

Overview

Make

Audi

Model

A4

Trim

S LINE

Version

2.0 TDI S Line S tronic FWD Euro 6 4dr (160 bhp)

Mileage

20,800 miles

Year

2021

Fuel type

Diesel

Body type

Saloon

Engine

2.0 L

Gearbox

Automatic

Power

160 bhp

Seats

5

CO2

137 g/km

Colour

Black

Doors

4

Driven wheels

Front Wheel Drive

Gearbox version

S tronic

Engine badge

TDI

Emissions standard

Euro 6

About this car

This 2021 Audi A4 S Line is advertised with 20,800 miles, approximately 29,400 below the typical mileage for its age. At £20,495, it is advertised £475 below our estimated market asking price of £20,970. We use UK dealer asking prices, including 1,429 Audi A4 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 145 days ago, the asking price has dropped by £1,100. That history is worth bearing in mind when speaking to the dealer. Its MOT is recorded as valid until 12 December 2026. The advertised mileage is consistent with the latest MOT reading. It is advertised by West Motor Company Kingston in New Malden.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £20,970. The asking price is £475 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 1,429 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 29,400 miles lower than typical for a 2021 Audi A4.

The advertised mileage is consistent with the last MOT reading.