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: 53,000 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

This 2021 Audi A3 S Line is advertised with 53,000 miles on the clock. Priced at £15,290, it is advertised £409 above the AskCar estimate of £14,881. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. Since we first spotted the advert 158 days ago, the asking price has dropped by £1,200. Ask the dealer why the advert shows fewer miles than the 54,172 recorded at the latest MOT. Its MOT is recorded as valid until 2 June 2027. You can find this car at Auto Unit in Newport. 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: £409 (2%) over the AskCar estimate of £14,881.

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

This 2021 Audi A3 has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £16,490. Its asking price is now £15,290, £1,200 less. The latest price cut was seen on 11 October 2026.

Price changes recorded:

• 28 May 2026: £16,490
• 22 June 2026: £15,990
• 11 July 2026: £15,690
• 8 August 2026: £15,490
• 11 October 2026: £15,290

Mileage and MOT

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

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

There were no advisories at the latest test.

Mileage at that test: 54,172 miles. The advert says 53,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 9,400 miles higher 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, £1,708 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: 42,111 miles. Price: £14,750, £540 less than this car. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e262a5b8a44a
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 38,054 miles. Price: £15,600, £310 more than this car. Dealer: Invicta Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e5b9c03e3092

• The nearest: 2021 Audi A3 S Line, 1.0 petrol saloon, black, 80 miles from this car. Mileage: 33,574 miles. Price: £15,590, £300 more than this car. Dealer: Carcart in Willenhall. AskCar page: https://askcar.co.uk/car/audi-a3-2021-62935ace8378