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) 5dr Sportback (148 bhp)
• Year: 2021
• Mileage: 65,895 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 65,895 miles, this 2021 Audi A3 S Line has covered about 22,700 more miles than other 2021 Audi A3 cars. The AskCar estimate for this car is £15,827. It is priced at £16,800, which is £973 above that estimate. The AskCar estimate uses 6,630 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 41 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Moto Porium in Bradford. 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: £973 (6%) over the AskCar estimate of £15,827.

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 1.5 petrol engine is typically advertised at £18,000: the median of the 194 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Audi A3 has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 24 September 2026 at £16,800. 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 13 November 2026.

It has had 2 MOTs. The latest, on 14 November 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 57,101 miles, which matches the advertised 65,895 miles.

Advertised mileage is about 22,700 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

54 other 2021 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £11,990 to £21,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 67,436 miles. Price: £15,590, £1,210 less than this car. Dealer: Winchmore Hill Car Sales in Nazeing. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ec4146189945
• 2021 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 71,439 miles. Price: £15,680, £1,120 less than this car. Dealer: Big Motoring World Leeds in Leeds. AskCar page: https://askcar.co.uk/car/audi-a3-2021-8ee864ddeba4
• 2021 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 59,270 miles. Price: £16,989, £189 more than this car. Dealer: Autobarn Motor Company in Burnley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-aa6f0eaaec11