2020 Audi A3 1.5 TFSI S Line

Price: £16,495. Fair price: £920 (5%) under the AskCar estimate of £17,415, 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 S Line Manual FWD Euro 6 5dr (147 bhp)
  • Year: 2020
  • Mileage: 23,308 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 147 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 141 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 23,308 miles, approximately 27,100 below the typical mileage for its age. Priced at £16,495, it is advertised £920 below the AskCar estimate of £17,415. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 59 days ago. Its asking price has since fallen by £1,500. The government's MOT record matches its advertised mileage. You can find this car at MSC Motors in Stoke-on-Trent. 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: £920 (5%) under the AskCar estimate of £17,415.

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 59 days.

Price history

AskCar first saw this advert on 4 September 2026 at £17,995. Its asking price is now £16,495, £1,500 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

  • 4 September 2026: £17,995
  • 8 October 2026: £16,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 April 2027.

It has had 4 MOTs. The latest, on 7 April 2026, passed.

Advisories at the latest test: tpml illuminated.

Mileage at that test: 22,362 miles, which matches the advertised 23,308 miles.

Advertised mileage is about 27,100 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: 21,600 miles. Price: £17,495, £1,000 more than this car. Dealer: Troops in Leadenham. AskCar page: https://askcar.co.uk/car/audi-a3-2020-5ac343a9c3e4
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 25,166 miles. Price: £16,994, £499 more than this car. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2020-6fd00ee074f7
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 25,586 miles. Price: £15,930, £565 less than this car. Dealer: Evans Halshaw Omoda Jaecoo Gainsborough in Gainsborough. AskCar page: https://askcar.co.uk/car/audi-a3-2020-6f0cd9bc071d
  • The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, black, 23 miles from this car. Mileage: 16,842 miles. Price: £18,020, £1,525 more than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2020-2d3d55e4012c

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

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Photos

65 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.