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: 42,738 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: Blue
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line has covered 42,738 miles, around 7,700 fewer miles than is typical for its age. Its asking price of £17,961 is £80 above the AskCar estimate of £17,881. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 26 days ago. Its asking price has since fallen by £121. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Vindis Group Northampton Audi, based in Northampton. 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: £80 (under 1%) over the AskCar estimate of £17,881.

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 26 days.

Price history

AskCar first saw this advert on 7 October 2026 at £18,082. Its asking price is now £17,961, £121 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 7 October 2026: £18,082
• 8 October 2026: £18,158
• 9 October 2026: £18,059
• 10 October 2026: £18,128
• 11 October 2026: £18,029
• 13 October 2026: £18,114
• 14 October 2026: £18,115
• 15 October 2026: £18,112
• 16 October 2026: £18,101
• 17 October 2026: £18,108
• 18 October 2026: £18,009
• 20 October 2026: £18,077
• 21 October 2026: £18,098
• 22 October 2026: £18,086
• 23 October 2026: £18,071
• 24 October 2026: £18,058
• 25 October 2026: £17,959
• 27 October 2026: £18,069
• 28 October 2026: £18,060
• 29 October 2026: £17,961

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 31 March 2027.

It has had 5 MOTs. The latest, on 24 March 2026, passed.

Advisories at the latest test: nearside rear road wheel slightly distorted.

Mileage at that test: 39,479 miles, which matches the advertised 42,738 miles.

Advertised mileage is about 7,700 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, grey. Mileage: 42,382 miles. Price: £17,599, £362 less than this car. Dealer: Motorpoint Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2020-356ac25a4955
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 43,741 miles. Price: £18,995, £1,034 more than this car. Dealer: Hawco Group Highland Audi in Inverness. AskCar page: https://askcar.co.uk/car/audi-a3-2020-92d1203a82cb
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 44,000 miles. Price: £19,995, £2,034 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, blue, 4 miles from this car. Mileage: 73,084 miles. Price: £13,450, £4,511 less than this car. Dealer: Listers Honda Northampton in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d10a50c25b5f