2021 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) 4dr (148 bhp)
• Year: 2021
• Mileage: 59,853 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line has covered 59,853 miles, around 16,300 more miles than is typical for its age. The dealer is asking £16,400, which is £261 below the AskCar estimate of £16,661. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The asking price is now £395 lower than when we first recorded the advert 16 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Invicta Chery Warrington, based in Warrington. 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: £261 (1%) under the AskCar estimate of £16,661.

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 2021 Audi A3 with the 1.5 petrol engine is typically advertised at £18,000: the median of the 191 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A3 has been on sale for at least 16 days.

Price history

AskCar first saw this advert on 17 October 2026 at £16,795. Its asking price is now £16,400, £395 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 17 October 2026: £16,795
• 21 October 2026: £16,695
• 31 October 2026: £16,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 7 October 2027.

It has had 5 MOTs. The latest, on 8 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 59,853 miles, which matches the advertised 59,853 miles.

Advertised mileage is about 16,300 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

31 other 2021 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £11,995 to £20,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol saloon, yellow. Mileage: 60,108 miles. Price: £16,499, £99 more than this car. Dealer: Empressive Motor Company in Merthyr Tydfil. AskCar page: https://askcar.co.uk/car/audi-a3-2021-dfed1226c57c
• 2021 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 57,500 miles. Price: £16,290, £110 less than this car. Dealer: K Motors London in New Malden. AskCar page: https://askcar.co.uk/car/audi-a3-2021-b8cbd85642b8
• 2021 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 57,000 miles. Price: £12,999, £3,401 less than this car. Dealer: Field Way Motors in Gerrards Cross. AskCar page: https://askcar.co.uk/car/audi-a3-2021-af825801f8b2

• The nearest: 2021 Audi A3 S Line, 1.5 petrol saloon, black, 14 miles from this car. Mileage: 63,490 miles. Price: £16,199, £201 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-39e036594cfa