2021 Audi A3 1.0 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.0 30 TFSI S Line S tronic FWD Euro 6 4dr (108 bhp)
• Year: 2021
• Mileage: 46,404 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.0 litres, 108 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Yellow
• CO2: 120 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line has covered 46,404 miles, around 2,800 more miles than is typical for its age. Priced at £16,190, it is advertised £602 below the AskCar estimate of £16,792. 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 94 days, and its asking price is down £435. The government's MOT record matches its advertised mileage. You can find this car at Sidegate Motors in Great Yarmouth. 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: £602 (3%) under the AskCar estimate of £16,792.

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 94 days, and its asking price has been cut by £435. 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 July 2026 at £16,625. Its asking price is now £16,190, £435 less. The latest price cut was seen on 2 October 2026.

Price changes recorded:

• 31 July 2026: £16,625
• 22 August 2026: £16,420
• 5 September 2026: £16,380
• 23 September 2026: £16,230
• 2 October 2026: £16,190

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 November 2026.

It has had 2 MOTs. The latest, on 8 November 2025, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge nearside and offside; rear tyre slightly damaged/cracking or perishing nearside and offside inner edge.

Mileage at that test: 42,845 miles, which matches the advertised 46,404 miles.

Advertised mileage is about 2,800 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

5 other 2021 Audi A3 S Line 1.0 petrol automatic saloons are for sale at UK dealers, from £16,640 to £19,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.0 petrol saloon, black. Mileage: 43,783 miles. Price: £16,640, £450 more than this car. Dealer: Days Motorpark Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2021-9f61b144cbb9
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 40,230 miles. Price: £17,150, £960 more than this car. Dealer: Group 1 Automotive Chingford Audi in Chingford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-7c523805809a
• 2021 Audi A3 S Line, 1.0 petrol saloon, white. Mileage: 39,230 miles. Price: £17,599, £1,409 more than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-41bd291aee1e