2021 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2021
• Mileage: 60,108 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Yellow
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 60,108 miles, this 2021 Audi A3 S Line has covered about 16,500 more miles than other 2021 Audi A3 cars. The dealer is asking £16,499, which is £136 below the AskCar estimate of £16,635. 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 132 days, and its asking price has been cut by £500. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Empressive Motor Company in Merthyr Tydfil. 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: £136 (under 1%) under the AskCar estimate of £16,635.

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 1.5 petrol engine is typically advertised at £18,000: the median of the 191 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 132 days, and its asking price has been cut by £500. 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 23 June 2026 at £16,999. Its asking price is now £16,499, £500 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

• 23 June 2026: £16,999
• 25 October 2026: £16,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 12 May 2027.

It has had 3 MOTs. The latest, on 8 May 2026, passed.

Advisories at the latest test: no emissions done MHEV; offside front inner tyre worn close to legal limit/worn on edge close to limit.

Mileage at that test: 58,268 miles, which matches the advertised 60,108 miles.

Advertised mileage is about 16,500 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

31 other 2021 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £11,995 to £20,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 59,853 miles. Price: £16,400, £99 less than this car. Dealer: Invicta Chery Warrington in Warrington. AskCar page: https://askcar.co.uk/car/audi-a3-2021-9f95418af774
• 2021 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 57,500 miles. Price: £16,290, £209 less than this car. Dealer: K Motors London in New Malden. AskCar page: https://askcar.co.uk/car/audi-a3-2021-b8cbd85642b8
• 2021 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 57,000 miles. Price: £12,999, £3,500 less than this car. Dealer: Field Way Motors in Gerrards Cross. AskCar page: https://askcar.co.uk/car/audi-a3-2021-af825801f8b2

• The nearest: 2021 Audi A3 S Line, 1.5 petrol saloon, blue, 23 miles from this car. Mileage: 39,502 miles. Price: £18,049, £1,550 more than this car. Dealer: Motorpoint Newport in Newport. AskCar page: https://askcar.co.uk/car/audi-a3-2021-c9ea56239f41