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: 42,111 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.0 litres, 108 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 42,111 miles on the clock. The AskCar estimate for this car is £15,777. It is priced at £14,750, which is £1,027 below that estimate. 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 60 days, and its asking price is down £1,150. Its advertised mileage matches the government's MOT record. The seller is Sytner Select Northampton, based in Northampton. 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: £1,027 (6%) under the AskCar estimate of £15,777.

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 60 days, and its asking price has been cut by £1,150. 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 3 September 2026 at £15,900. Its asking price is now £14,750, £1,150 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 3 September 2026: £15,900
• 9 October 2026: £15,650
• 22 October 2026: £15,150
• 29 October 2026: £14,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 24 March 2027.

It has had 3 MOTs. The latest, on 25 March 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge 2.7mm; offside rear tyre worn close to legal limit/worn on edge 2.5mm; front items removed from driver's view prior to test.

Mileage at that test: 38,330 miles, which matches the advertised 42,111 miles.

Advertised mileage is about 1,500 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, blue. Mileage: 45,455 miles. Price: £16,998, £2,248 more than this car. Dealer: Arnold Clark Newcastle OMODA / JAECOO in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2021-0eaec860b411
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 38,054 miles. Price: £15,600, £850 more than this car. Dealer: Invicta Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e5b9c03e3092
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 36,142 miles. Price: £16,499, £1,749 more than this car. Dealer: Bridgend Motor Group, Ayr in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ebf04dbd6eaa

• The nearest: 2021 Audi A3 S Line, 1.0 petrol saloon, white, 18 miles from this car. Mileage: 35,588 miles. Price: £16,599, £1,849 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-39d3b30b70a6