2020 Audi A3 1.5 TFSI S Line

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: 34,936 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 34,936 miles on the clock, this 2020 Audi A3 S Line has done roughly 15,500 fewer miles than a typical 2020 Audi A3. The dealer is asking £16,734, which is £77 below the AskCar estimate of £16,811. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first recorded this advert 4 days ago, and its asking price has since fallen by £16. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Johnsons Suzuki Bilston, based in Bilston. 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: £77 (under 1%) under the AskCar estimate of £16,811.

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

AskCar first saw this 2020 Audi A3 advertised 4 days ago. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 226 of the 433 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 29 October 2026 at £16,750. Its asking price is now £16,734, £16 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 29 October 2026: £16,750
• 30 October 2026: £16,734

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 16 July 2027.

It has had 4 MOTs. The latest, on 18 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 32,471 miles, which matches the advertised 34,936 miles.

Advertised mileage is about 15,500 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, white. Mileage: 36,271 miles. Price: £16,666, £68 less than this car. Dealer: JCT600 Volkswagen Grimsby in Grimsby. AskCar page: https://askcar.co.uk/car/audi-a3-2020-72c494c0c76a
• 2020 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 32,203 miles. Price: £15,990, £744 less than this car. Dealer: Johnsons Hyundai Slough in Slough. AskCar page: https://askcar.co.uk/car/audi-a3-2020-a12d786e2725
• 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 38,296 miles. Price: £16,346, £388 less than this car. Dealer: JCT600 Volkswagen York in York. AskCar page: https://askcar.co.uk/car/audi-a3-2020-8dc0ab43b255

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, black, 8 miles from this car. Mileage: 16,842 miles. Price: £18,020, £1,286 more than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2020-2d3d55e4012c