2021 Audi A3 1.0 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.0 TFSI 30 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (108 bhp)
• Year: 2021
• Mileage: 18,687 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.0 litres, 108 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 18,687 miles, approximately 23,700 below the typical mileage for its age. The AskCar estimate for this car is £19,075. It is priced at £18,495, which is £580 below that estimate. The AskCar estimate uses 6,691 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motor Range Manchester, based in Manchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £580 (3%) under the AskCar estimate of £19,075.

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 6,691 priced Audi A3 adverts across different ages and specifications, as of 7 November 2026.

A 2021 Audi A3 with the 1.0 petrol engine is typically advertised at £15,000: the median of the 89 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2021 Audi A3 advertised today. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 440 of the 781 first advertised between 7 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £18,495. 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 7 November 2026: valid until 21 June 2027.

It has had 3 MOTs. The latest, on 22 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 15,241 miles, which matches the advertised 18,687 miles.

Advertised mileage is about 23,700 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

12 other 2021 Audi A3 S Line 1.0 petrol automatic hatchbacks are for sale at UK dealers, from £12,250 to £19,000, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.0 petrol hatchback, white. Mileage: 15,710 miles. Price: £18,795, £300 more than this car. Dealer: Motor Trust Haslingden in Haslingden. AskCar page: https://askcar.co.uk/car/audi-a3-2021-459d909d6ad4
• 2021 Audi A3 S Line, 1.0 petrol hatchback, white. Mileage: 23,955 miles. Price: £18,230, £265 less than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2021-6999117dd5f4
• 2021 Audi A3 S Line, 1.0 petrol hatchback, white. Mileage: 25,845 miles. Price: £17,120, £1,375 less than this car. Dealer: Big Motoring World Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-591fade98d83

• The nearest: 2021 Audi A3 S Line, 1.0 petrol hatchback, blue, 6 miles from this car. Mileage: 31,948 miles. Price: £16,990, £1,505 less than this car. Dealer: Williams Select in Old Trafford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-944b6d50be9c