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) 4dr (148 bhp)
• Year: 2020
• Mileage: 33,418 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 33,418 miles, approximately 17,000 below the typical mileage for its age. The AskCar estimate for this car is £16,795. It is priced at £16,499, which is £296 below that estimate. 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 have tracked this advert for 52 days. The latest recorded MOT expiry date is 31 October 2026, which has passed. Confirm its status with the dealer. Its advertised mileage matches the government's MOT record. It is advertised by Available Car Supermarket - Castle Donington in Castle Donnington. 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: £296 (1%) under the AskCar estimate of £16,795.

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 52 days.

Price history

AskCar first saw this advert on 11 September 2026 at £16,499. 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 2 November 2026: the latest record we hold ran out on 31 October 2026; ask the dealer for the current MOT.

It failed its MOT on 28 October 2025 (front windscreen washer provides insufficient washer liquid) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 30,495 miles, which matches the advertised 33,418 miles.

Advertised mileage is about 17,000 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

7 other 2020 Audi A3 S Line 1.5 petrol manual saloons are for sale at UK dealers, from £14,998 to £17,390, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 34,000 miles. Price: £16,395, £104 less than this car. Dealer: Motor Trust UK Garstang in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-513d9efe3633
• 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 41,263 miles. Price: £15,499, £1,000 less than this car. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-888a045696a2
• 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 24,000 miles. Price: £17,390, £891 more than this car. Dealer: GTS Automotive in Osbaldeston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-5d8ac6fa0c59

• The nearest: 2020 Audi A3 S Line, 1.5 petrol saloon, grey, 73 miles from this car. Mileage: 54,953 miles. Price: £15,450, £1,049 less than this car. Dealer: Second Chance Car Finance in Wetherby. AskCar page: https://askcar.co.uk/car/audi-a3-2020-f5a426574168