2020 Audi A3 1.5 TFSI S Line

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: 30,500 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: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 30,500 miles on the clock, this 2020 Audi A3 S Line has done roughly 19,900 fewer miles than a typical 2020 Audi A3. The dealer is asking £17,900, which is £1,195 below the AskCar estimate of £19,095. 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 car for sale 12 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is CarTime Nelson/Burnley, based in Nelson. 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: £1,195 (6%) under the AskCar estimate of £19,095.

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 12 days.

Price history

AskCar first saw this advert on 21 October 2026 at £17,500. Its asking price is now £17,900, £400 more.

Price changes recorded:

• 21 October 2026: £17,500
• 28 October 2026: £17,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 24 February 2027.

It has had 4 MOTs. The latest, on 25 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,486 miles, which matches the advertised 30,500 miles.

Advertised mileage is about 19,900 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, black. Mileage: 31,000 miles. Price: £18,995, £1,095 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, grey. Mileage: 32,747 miles. Price: £17,789, £111 less than this car. Dealer: Howards Used Car Centre Yeovil in Yeovil. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d4d0718aaa7b
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 28,000 miles. Price: £18,999, £1,099 more than this car. Dealer: SRH Cars (Leeds) in Leeds. AskCar page: https://askcar.co.uk/car/audi-a3-2020-4deb6892c913

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, black, 10 miles from this car. Mileage: 50,000 miles. Price: £15,985, £1,915 less than this car. Dealer: Autochoice Car Supermarket in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a3-2020-c625b589a126