2020 Audi A3 1.5 TFSI S Line

Price: £17,789. Fair price: £1,077 (5%) under the AskCar estimate of £18,866, 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 S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
  • Year: 2020
  • Mileage: 32,747 miles
  • Fuel: Petrol, mild hybrid
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 135 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 32,747 miles on the clock, this 2020 Audi A3 S Line has done roughly 17,600 fewer miles than a typical 2020 Audi A3. The AskCar estimate for this car is £18,866. It is priced at £17,789, which is £1,077 below that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 30 days ago, the asking price has dropped by £1,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is Howards Used Car Centre Yeovil, based in Yeovil. 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: £1,077 (5%) under the AskCar estimate of £18,866.

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 30 days.

Price history

AskCar first saw this advert on 3 October 2026 at £18,789. Its asking price is now £17,789, £1,000 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

  • 3 October 2026: £18,789
  • 23 October 2026: £17,789

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 13 September 2027.

It has had 5 MOTs. The latest, on 3 September 2026, passed.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 32,202 miles, which matches the advertised 32,747 miles.

Advertised mileage is about 17,600 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

24 other 2020 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £13,100 to £20,750, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2020 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 34,000 miles. Price: £18,790, £1,001 more than this car. Dealer: Diamond Motor House in Leeds. AskCar page: https://askcar.co.uk/car/audi-a3-2020-f0d482d05a00
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 31,000 miles. Price: £18,995, £1,206 more than this car. Dealer: Group 1 Automotive Whetstone Audi in Whetstone. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d28e3ce7bd7e
  • 2020 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 30,500 miles. Price: £17,900, £111 more than this car. Dealer: CarTime Nelson/Burnley in Nelson. AskCar page: https://askcar.co.uk/car/audi-a3-2020-0adffffb5147
  • The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, grey, 35 miles from this car. Mileage: 52,537 miles. Price: £16,184, £1,605 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2020-0821b03c844a

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

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Photos

55 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.