2020 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line Manual FWD Euro 6 5dr
• Year: 2020
• Mileage: 49,942 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2020 Audi A3 S Line is 49,942 miles. Priced at £15,750, it is advertised £37 above the AskCar estimate of £15,713. The AskCar estimate draws on 6,629 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Mon Motors Bath Audi, based in Bath. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £37 (under 1%) over the AskCar estimate of £15,713.

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 6,629 priced Audi A3 adverts across different ages and specifications, as of 10 November 2026.

A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 153 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2020 Audi A3 advertised today. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 265 of the 510 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £15,750. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 25 August 2027.

It has had 5 MOTs. The latest, on 21 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 48,429 miles, which matches the advertised 49,942 miles.

Advertised mileage is about 100 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

34 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 10 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 50,100 miles. Price: £16,198, £448 more than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/audi-a3-2020-f3d34ab744be
• 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 51,000 miles. Price: £15,295, £455 less than this car. Dealer: Wynford Specialist Motors in Birmingham. AskCar page: https://askcar.co.uk/car/audi-a3-2020-ceed5b38b0da
• 2020 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 54,387 miles. Price: £15,485, £265 less than this car. Dealer: Listers Honda Stratford-upon-Avon in Stratford-upon-Avon. AskCar page: https://askcar.co.uk/car/audi-a3-2020-392d55a326d8

• The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, white, 35 miles from this car. Mileage: 62,158 miles. Price: £13,495, £2,255 less than this car. Dealer: SCC Approved Taunton in Taunton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-9c4835ab1e07