2020 Audi A3 2.0 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2020
• Mileage: 96,706 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 96,706 miles, approximately 46,300 above the typical mileage for its age. Priced at £13,990, it is advertised £1,221 above the AskCar estimate of £12,769. 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 saw this car advertised 33 days ago. Its asking price has since fallen by £800. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Www.Countrycarsales.Co.Uk in Welwyn Garden City. 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

Above the going rate: £1,221 (9%) over the AskCar estimate of £12,769.

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 2.0 diesel engine is typically advertised at £16,800: the median of the 52 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 Audi A3 has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £14,790. Its asking price is now £13,990, £800 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 30 September 2026: £14,790
• 16 October 2026: £14,490
• 1 November 2026: £13,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 September 2027.

It has had 4 MOTs. The latest, on 1 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 96,713 miles, which matches the advertised 96,706 miles.

Advertised mileage is about 46,300 miles higher than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

13 other 2020 Audi A3 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £10,995 to £19,770, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 88,430 miles. Price: £14,300, £310 more than this car. Dealer: R 8 Motor Group in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2020-17b66140c527
• 2020 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 88,430 miles. Price: £14,300, £310 more than this car. Dealer: Moto Porium in Bradford. AskCar page: https://askcar.co.uk/car/audi-a3-2020-28a76204192a
• 2020 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 107,000 miles. Price: £10,995, £2,995 less than this car. Dealer: Novadrive in Batley. AskCar page: https://askcar.co.uk/car/audi-a3-2020-2459e6fd2001