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: 35,018 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.0 litres, 108 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 35,018 miles, this 2021 Audi A3 S Line has covered about 8,600 fewer miles than other 2021 Audi A3 cars. Its asking price of £16,199 is £190 below the AskCar estimate of £16,389. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 2 days. Its advertised mileage matches the government's MOT record. You can find this car at cinch Corby in North Northamptonshire. 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: £190 (1%) under the AskCar estimate of £16,389.

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

AskCar first saw this 2021 Audi A3 advertised 2 days ago. 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 31 October 2026 at £16,199. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 22 October 2027.

It has had 5 MOTs. The latest, on 23 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,017 miles, which matches the advertised 35,018 miles.

Advertised mileage is about 8,600 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, white. Mileage: 35,588 miles. Price: £16,599, £400 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, £304 less than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2021-f3c4cca44050
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 36,142 miles. Price: £16,499, £300 more than this car. Dealer: Bridgend Motor Group, Ayr in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ebf04dbd6eaa