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: 34,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,000 miles, this 2020 Audi A3 S Line has covered about 16,400 fewer miles than other 2020 Audi A3 cars. Its asking price of £16,395 is £348 below the AskCar estimate of £16,743. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 62 days ago, and its asking price has since fallen by £900. The latest recorded MOT expiry date is 8 September 2026, which has passed. Confirm its status with the dealer. Its advertised mileage matches the government's MOT record. The seller is Motor Trust UK Garstang, based in Preston. 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: £348 (2%) under the AskCar estimate of £16,743.

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 62 days.

Price history

AskCar first saw this advert on 1 September 2026 at £17,295. Its asking price is now £16,395, £900 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 1 September 2026: £17,295
• 12 September 2026: £16,595
• 7 October 2026: £16,495
• 17 October 2026: £16,395

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 8 September 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 29 August 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 29,843 miles, which matches the advertised 34,000 miles.

Advertised mileage is about 16,400 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, grey. Mileage: 33,418 miles. Price: £16,499, £104 more than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/audi-a3-2020-974520cf317e
• 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 41,263 miles. Price: £15,499, £896 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, £995 more than this car. Dealer: GTS Automotive in Osbaldeston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-5d8ac6fa0c59