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: 31,870 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: White
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 31,870 miles, approximately 11,400 below the typical mileage for its age. Priced at £17,995, it is advertised £3 above the AskCar estimate of £17,992. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 160 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at The Drivers Gallery in Bromsgrove. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £3 (under 1%) over the AskCar estimate of £17,992.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A3 with the 1.0 petrol engine is typically advertised at £15,000: the median of the 85 for sale on AskCar, as of 4 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A3 has been on sale for at least 160 days. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 419 of the 741 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 28 May 2026 at £17,995. 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 4 November 2026: valid until 20 January 2027.

It failed its MOT on 21 January 2026 (nearside front brake pad(s) worn down to wear indicator; offside front brake pad(s) worn down to wear indicator) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 31,711 miles, which matches the advertised 31,870 miles.

Advertised mileage is about 11,400 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

9 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 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.0 petrol hatchback, blue. Mileage: 31,948 miles. Price: £16,990, £1,005 less than this car. Dealer: Williams Select in Old Trafford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-944b6d50be9c
• 2021 Audi A3 S Line, 1.0 petrol hatchback, white. Mileage: 35,721 miles. Price: £17,490, £505 less than this car. Dealer: Winchmore Hill Car Sales in Hoddesdon. AskCar page: https://askcar.co.uk/car/audi-a3-2021-4472ddc2e5ee
• 2021 Audi A3 S Line, 1.0 petrol hatchback, white. Mileage: 27,780 miles. Price: £19,000, £1,005 more than this car. Dealer: Junction Autopark Llandudno in Llandudno. AskCar page: https://askcar.co.uk/car/audi-a3-2021-cbc692b9664c

• The nearest: 2021 Audi A3 S Line, 1.0 petrol hatchback, white, 23 miles from this car. Mileage: 23,955 miles. Price: £18,080, £85 more than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2021-6999117dd5f4