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) 5dr Sportback (148 bhp)
• Year: 2021
• Mileage: 48,200 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 48,200 miles on the clock, this 2021 Audi A3 S Line has done roughly 4,600 more miles than a typical 2021 Audi A3. The dealer is asking £17,060, which is £614 below the AskCar estimate of £17,674. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first recorded this advert 65 days ago, and its asking price has since fallen by £110. Our records show an MOT expiry date of 1 November 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. The seller is Evans Halshaw Ford Motherwell, based in Motherwell. 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: £614 (3%) under the AskCar estimate of £17,674.

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 65 days.

Price history

AskCar first saw this advert on 29 August 2026 at £17,170. Its asking price is now £17,060, £110 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 29 August 2026: £17,170
• 29 October 2026: £17,060

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 1 November 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 27 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 41,738 miles, which matches the advertised 48,200 miles.

Advertised mileage is about 4,600 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

49 other 2021 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £11,990 to £21,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 48,615 miles. Price: £17,995, £935 more than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a3-2021-3bbe0362d048
• 2021 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 47,445 miles. Price: £17,880, £820 more than this car. Dealer: Vehicle Select in Bolton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-81fb582f93b3
• 2021 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 46,087 miles. Price: £17,066, the same price as this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2021-5c2ab42d2bcf

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, grey, 12 miles from this car. Mileage: 36,386 miles. Price: £18,199, £1,139 more than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2021-02d0627ca7cb