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: 84,920 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 84,920 miles, approximately 41,300 above the typical mileage for its age. The dealer is asking £12,895, which is £274 above the AskCar estimate of £12,621. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first recorded this advert 39 days ago, and its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is V12 Sports & Classics Ltd - Hinckley, based in Hinckley. 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: £274 (2%) over the AskCar estimate of £12,621.

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 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £13,195. Its asking price is now £12,895, £300 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 24 September 2026: £13,195
• 26 September 2026: £12,995
• 28 October 2026: £12,895

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 17 September 2027.

It has had 5 MOTs. The latest, on 18 September 2026, passed.

Advisories at the latest test: front windscreen wiper blade defective both smearing; nearside front tyre worn close to legal limit/worn on edge inner edge; offside front tyre worn close to legal limit/worn on edge inner edge.

Mileage at that test: 84,893 miles, which matches the advertised 84,920 miles.

Advertised mileage is about 41,300 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 £14,495 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, blue. Mileage: 79,584 miles. Price: £14,999, £2,104 more than this car. Dealer: Empressive Motor Company in Merthyr Tydfil. AskCar page: https://askcar.co.uk/car/audi-a3-2021-b97ada829b28
• 2021 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 71,881 miles. Price: £14,495, £1,600 more than this car. Dealer: Simpson Motors in Dunfermline. AskCar page: https://askcar.co.uk/car/audi-a3-2021-8d006f3aef1a
• 2021 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 63,297 miles. Price: £15,499, £2,604 more than this car. Dealer: Pinetree Car Superstore - Tonypandy in Tonypandy. AskCar page: https://askcar.co.uk/car/audi-a3-2021-76d67551a08b

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, blue, 25 miles from this car. Mileage: 42,466 miles. Price: £16,050, £3,155 more than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-891d89d7ab9c