2020 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 5dr (147 bhp)
• Year: 2020
• Mileage: 42,718 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 42,718 miles, this 2020 Audi A3 S Line has covered about 7,300 fewer miles than other 2020 Audi A3 cars. The dealer is asking £17,680, which is £200 below the AskCar estimate of £17,880. To work out the AskCar estimate, we analyse UK dealer adverts for 6,629 Audi A3 cars across different ages and specifications. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Wolverhampton Audi, based in Wolverhampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £200 (1%) under the AskCar estimate of £17,880.

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 6,629 priced Audi A3 adverts across different ages and specifications, as of 10 November 2026.

A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 153 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2020 Audi A3 advertised today. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 265 of the 510 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £17,680. 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 10 November 2026: valid until 25 March 2027.

It has had 4 MOTs. The latest, on 9 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 37,002 miles, which matches the advertised 42,718 miles.

Advertised mileage is about 7,300 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

27 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 10 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 42,738 miles. Price: £17,837, £157 more than this car. Dealer: Vindis Group Northampton Audi in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-218103e452d4
• 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 42,382 miles. Price: £17,349, £331 less than this car. Dealer: Motorpoint Stockton-on-Tees in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/audi-a3-2020-356ac25a4955
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 44,000 miles. Price: £19,995, £2,315 more than this car. Dealer: R W Sports And Prestige in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2020-b3a560cf6848

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, silver, 29 miles from this car. Mileage: 61,380 miles. Price: £13,100, £4,580 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2020-443e3aba4390