2021 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2021
• Mileage: 42,466 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 Audi A3 S Line is 42,466 miles. Priced at £16,050, it is advertised £515 below the AskCar estimate of £16,565. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 6 days ago. The government's MOT record matches its advertised mileage. It is for sale at Hilton Garage in Derby. 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: £515 (3%) under the AskCar estimate of £16,565.

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

AskCar first saw this 2021 Audi A3 advertised 6 days ago. 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 27 October 2026 at £15,950. Its asking price is now £16,050, £100 more.

Price changes recorded:

• 27 October 2026: £15,950
• 30 October 2026: £16,050

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 April 2027.

It has had 3 MOTs. The latest, on 15 April 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; nearside rear tyre worn close to legal limit/worn on edge tread on 1.6mm; offside rear tyre worn close to legal limit/worn on edge tread on 1.6mm; and 2 more.

Mileage at that test: 35,230 miles, which matches the advertised 42,466 miles.

Advertised mileage is about 1,100 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

20 other 2021 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £12,895 to £18,490, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 42,370 miles. Price: £16,490, £440 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-2ac793bc074e
• 2021 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 44,353 miles. Price: £15,680, £370 less than this car. Dealer: Big Motoring World Norwich in Norwich. AskCar page: https://askcar.co.uk/car/audi-a3-2021-708ae2fe8670
• 2021 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 44,792 miles. Price: £15,710, £340 less than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/audi-a3-2021-d76776fc4f0b

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, grey, 25 miles from this car. Mileage: 84,920 miles. Price: £12,895, £3,155 less than this car. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-c65172f88ab9