2020 Audi A3 1.5 TFSI S Line

Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)

Price: £16,795. Fair price: £763 (4%) over the AskCar estimate of £16,032, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,475 priced Audi A3 adverts on AskCar as of 30 October 2026.

AskCar lists 6,654 used Audi A3 from 2,240 UK dealerships, as of 30 October 2026.

Overview

Make
Audi
Model
A3
Trim
S Line
Version
1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
Mileage
44,184 miles
Year
2020
Fuel type
Petrol
Body type
Hatchback
Engine
1.5 L
Gearbox
Manual
Power
148 bhp
Seats
5
CO2
136 g/km
Colour
Grey
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
TFSI
Emissions standard
Euro 6

About this car

This 2020 Audi A3 S Line is advertised with 44,184 miles, approximately 6,100 below the typical mileage for its age. The dealer is asking £16,795, which is £763 above the AskCar estimate of £16,032. To work out the AskCar estimate, we analyse UK dealer adverts for 6,475 Audi A3 cars across different ages and specifications. We first saw this car advertised 44 days ago. Its asking price has since fallen by £1,200. The latest MOT record shows an expiry date of 22 February 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Crystal Motor Company in Northampton.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 16 September 2026, 44 days ago. Price reduced by £1,200 from £17,995 since AskCar first saw it. 2 price reductions recorded, the latest seen on 20 September 2026.

Recorded asking prices
Date observedAsking price
16 September 2026£17,995
19 September 2026£16,995
20 September 2026£16,795
30 October 2026£16,795

Price and mileage comparison

Fair price: £763 (4%) over the AskCar estimate of £16,032.

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 6,475 priced Audi A3 adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 6,100 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 22 February 2027. 39,413 miles at the last test.

Other matching cars

56 other 2020 Audi A3 S Line manual petrol cars are for sale at UK dealers from £11,990 to £18,020, as of 30 October 2026.

The 5 cheapest:

The 56 matching cars have covered 9,815 to 103,100 miles, compared with 44,184 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 A3 cars for sale · 2020 Audi A3 price guide

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Photos

31 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 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.