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: 44,353 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Red
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line has covered 44,353 miles. The AskCar estimate for this car is £16,398. It is priced at £15,680, which is £718 below that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 59 days ago, the asking price has dropped by £1,150. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Big Motoring World Norwich, based in Norwich. 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: £718 (4%) under the AskCar estimate of £16,398.

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

This 2021 Audi A3 has been on sale for at least 59 days.

Price history

AskCar first saw this advert on 4 September 2026 at £16,830. Its asking price is now £15,680, £1,150 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 4 September 2026: £16,830
• 5 September 2026: £16,820
• 8 September 2026: £16,640
• 9 September 2026: £16,630
• 10 September 2026: £16,610
• 12 September 2026: £16,590
• 17 September 2026: £16,570
• 20 September 2026: £16,560
• 22 September 2026: £16,550
• 23 September 2026: £16,060
• 26 September 2026: £16,050
• 3 October 2026: £16,060
• 7 October 2026: £16,070
• 10 October 2026: £16,010
• 19 October 2026: £15,940
• 21 October 2026: £15,910
• 27 October 2026: £15,850
• 31 October 2026: £15,680

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 April 2027.

It has had 4 MOTs. The latest, on 24 March 2026, passed.

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

Mileage at that test: 41,738 miles, which matches the advertised 44,353 miles.

Advertised mileage is about 800 miles higher 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, white. Mileage: 44,792 miles. Price: £15,710, the same price as this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/audi-a3-2021-d76776fc4f0b
• 2021 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 42,466 miles. Price: £16,050, £370 more than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-891d89d7ab9c
• 2021 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 42,370 miles. Price: £16,490, £810 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-2ac793bc074e

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, white, 63 miles from this car. Mileage: 36,065 miles. Price: £15,990, £310 more than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-8262eb5d5772