2021 Audi A3 1.0 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.0 TFSI 30 S Line Manual FWD Euro 6 (s/s) 4dr (108 bhp)
• Year: 2021
• Mileage: 33,574 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.0 litres, 108 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 33,574 miles, this 2021 Audi A3 S Line has covered about 10,000 fewer miles than other 2021 Audi A3 cars. Priced at £15,590, it is advertised £927 below the AskCar estimate of £16,517. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 89 days, and its asking price is down £900. We checked its advertised mileage against the government's MOT record, and they match. The seller is Carcart, based in Willenhall. 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: £927 (5%) under the AskCar estimate of £16,517.

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 1.0 petrol engine is typically advertised at £15,000: the median of the 87 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A3 has been on sale for at least 89 days, and its asking price has been cut by £900. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 403 of the 709 first advertised between 7 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 5 August 2026 at £16,490. Its asking price is now £15,590, £900 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 5 August 2026: £16,490
• 8 September 2026: £16,290
• 13 September 2026: £15,990
• 19 September 2026: £15,890
• 10 October 2026: £15,790
• 27 October 2026: £15,590

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 16 June 2027.

It failed its MOT on 3 June 2026 (nearside front tyre has a tear, caused by separation or partial failure of its structure inner sidewall - 225/40/18; offside front tyre has a tear, caused by separation or partial failure of its structure inner sidewall) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 32,228 miles, which matches the advertised 33,574 miles.

Advertised mileage is about 10,000 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

11 other 2021 Audi A3 S Line 1.0 petrol manual saloons are for sale at UK dealers, from £13,299 to £17,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.0 petrol saloon, grey. Mileage: 35,018 miles. Price: £16,199, £609 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-61cc72f32564
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 35,588 miles. Price: £16,599, £1,009 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-39d3b30b70a6
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 35,617 miles. Price: £15,895, £305 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2021-f3c4cca44050

• The nearest: 2021 Audi A3 S Line, 1.0 petrol saloon, white, 57 miles from this car. Mileage: 42,111 miles. Price: £14,750, £840 less than this car. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e262a5b8a44a