2021 Audi A5 2.0 TFSI S Line

Version: 2.0 TFSI 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)

Price: £18,339. Fair price: £1,216 (7%) over the AskCar estimate of £17,123, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,861 priced Audi A5 adverts on AskCar as of 29 October 2026.

AskCar lists 1,930 used Audi A5 from 1,089 UK dealerships, as of 29 October 2026.

Overview

Make
Audi
Model
A5
Trim
S Line
Version
2.0 TFSI 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)
Mileage
79,005 miles
Year
2021
Fuel type
Petrol
Body type
Hatchback
Engine
2.0 L
Gearbox
Automatic
Power
201 bhp
Seats
5
CO2
154 g/km
Colour
Blue
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
S tronic
Engine badge
TFSI
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 79,005 miles on the clock, this 2021 Audi A5 S Line has done roughly 27,700 more miles than a typical 2021 Audi A5. The AskCar estimate for this car is £17,123. It is priced at £18,339, which is £1,216 above that estimate. The AskCar estimate uses UK dealer asking prices, including 1,861 Audi A5 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert today. MOT records show an expiry date of 20 June 2027, and the latest recorded mileage is consistent with the advert. The seller is Vindis Group Northampton Audi, based in Northampton.

Stock data as of 29 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 29 October 2026.

Recorded asking prices
Date observedAsking price
29 October 2026£18,339

Price and mileage comparison

Fair price: £1,216 (7%) over the AskCar estimate of £17,123.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,861 priced Audi A5 adverts across different ages and specifications, as of 29 October 2026.

Advertised mileage is about 27,700 miles higher than the median mileage of a 2021 Audi A5 on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 20 June 2027. 74,394 miles at the last test.

Other matching cars

23 other 2021 Audi A5 S Line automatic petrol cars are for sale at UK dealers from £14,850 to £23,725, as of 29 October 2026.

The 5 cheapest:

The 23 matching cars have covered 20,573 to 89,393 miles, compared with 79,005 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all Audi A5 cars for sale · 2021 Audi A5 price guide

More like this

Photos

32 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.