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: 66,165 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 66,165 miles, approximately 16,200 above the typical mileage for its age. The AskCar estimate for this car is £14,048. It is priced at £13,980, which is £68 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,691 Audi A3 cars across different ages and specifications. The asking price is now £562 lower than when we first recorded the advert 34 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Windsor Car Centre in Windsor and Maidenhead. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £68 (under 1%) under the AskCar estimate of £14,048.

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 6,691 priced Audi A3 adverts across different ages and specifications, as of 7 November 2026.

A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 150 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 Audi A3 has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 4 October 2026 at £14,542. Its asking price is now £13,980, £562 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 4 October 2026: £14,542
• 22 October 2026: £13,980

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 31 August 2027.

It has had 3 MOTs. The latest, on 28 August 2026, passed.

Advisories at the latest test: offside front shock absorbers has light misting of oil; nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 65,020 miles, which matches the advertised 66,165 miles.

Advertised mileage is about 16,200 miles higher than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

33 other 2020 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £11,450 to £17,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 68,603 miles. Price: £13,995, the same price as this car. Dealer: McCarthy Cars in Croydon. AskCar page: https://askcar.co.uk/car/audi-a3-2020-21314203df4e
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 62,158 miles. Price: £13,495, £485 less than this car. Dealer: SCC Approved Taunton in Taunton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-9c4835ab1e07
• 2020 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 61,072 miles. Price: £15,490, £1,510 more than this car. Dealer: Roy Needham (Cars) in Barnsley. AskCar page: https://askcar.co.uk/car/audi-a3-2020-972a64090527

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, red, 3 miles from this car. Mileage: 32,203 miles. Price: £15,990, £2,010 more than this car. Dealer: Johnsons Hyundai Slough in Slough. AskCar page: https://askcar.co.uk/car/audi-a3-2020-a12d786e2725