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: 81,299 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 81,299 miles on the clock, this 2020 Audi A3 S Line has done roughly 30,900 more miles than a typical 2020 Audi A3. Priced at £14,500, it is advertised £499 above the AskCar estimate of £14,001. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 20 days ago, and its asking price has since fallen by £450. The government's MOT record matches its advertised mileage. You can find this car at RSG Motor Group in Ascot. 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: £499 (3%) over the AskCar estimate of £14,001.

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 20 days.

Price history

AskCar first saw this advert on 13 October 2026 at £14,950. Its asking price is now £14,500, £450 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 13 October 2026: £14,950
• 14 October 2026: £14,750
• 21 October 2026: £14,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 February 2027.

It has had 5 MOTs. The latest, on 2 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 75,562 miles, which matches the advertised 81,299 miles.

Advertised mileage is about 30,900 miles higher 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: 77,000 miles. Price: £17,995, £3,495 more than this car. Dealer: Sam Performance in Rochdale. AskCar page: https://askcar.co.uk/car/audi-a3-2020-4f250fb7c0ba
• 2020 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 73,084 miles. Price: £13,450, £1,050 less than this car. Dealer: Listers Honda Northampton in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d10a50c25b5f
• 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 62,290 miles. Price: £17,100, £2,600 more than this car. Dealer: Marshall Motor Group Maidstone Audi in Maidstone. AskCar page: https://askcar.co.uk/car/audi-a3-2020-31537989b80a

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, black, 26 miles from this car. Mileage: 31,000 miles. Price: £18,995, £4,495 more than this car. Dealer: Group 1 Automotive Whetstone Audi in Whetstone. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d28e3ce7bd7e