2020 Audi A3 1.5 TFSI S Line

Price: £16,499. Fair price: £538 (3%) over the AskCar estimate of £15,961, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.

AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 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)
  • Year: 2020
  • Mileage: 44,600 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: White
  • CO2: 136 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 44,600 miles, approximately 5,800 below the typical mileage for its age. The dealer is asking £16,499, which is £538 above the AskCar estimate of £15,961. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. It first appeared in our advert records 14 days ago. The recorded MOT expired on 7 October 2026, so ask the dealer whether it has been renewed. Its advertised mileage matches the government's MOT record. It is advertised by Flc in Yiewsley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £538 (3%) over the AskCar estimate of £15,961.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £16,000: the median of the 134 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 Audi A3 has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 19 October 2026 at £16,499. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 7 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 25 September 2025, passed.

Advisories at the latest test: offside front tyre has a cut but not deep enough to reach the ply or cords outer sidewall; offside rear tyre has a cut but not deep enough to reach the ply or cords outer sidewall.

Mileage at that test: 38,451 miles, which matches the advertised 44,600 miles.

Advertised mileage is about 5,800 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

30 other 2020 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £11,995 to £18,020, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 44,184 miles. Price: £16,495, the same price as this car. Dealer: Crystal Motor Company in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-28ba5d54ddfb
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 43,729 miles. Price: £15,595, £904 less than this car. Dealer: Amina Autos in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a3-2020-2cb41e28559d
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 43,014 miles. Price: £16,795, £296 more than this car. Dealer: Auto Station in Elgin. AskCar page: https://askcar.co.uk/car/audi-a3-2020-0fb7dca9de41
  • The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, red, 7 miles from this car. Mileage: 32,203 miles. Price: £15,990, £509 less than this car. Dealer: Johnsons Hyundai Slough in Slough. AskCar page: https://askcar.co.uk/car/audi-a3-2020-a12d786e2725

Browse all Audi A3 cars for sale · 2020 Audi A3 price guide

More like this

Photos

59 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.