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: 43,550 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 43,550 miles on the clock. Its asking price of £15,550 is £969 below the AskCar estimate of £16,519. The AskCar estimate uses 6,645 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Nuneaton Car Sales, based in Nuneaton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £969 (5%) under the AskCar estimate of £16,519.

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 6,645 priced Audi A3 adverts across different ages and specifications, as of 5 November 2026.

A 2021 Audi A3 with the 1.5 petrol engine is typically advertised at £18,000: the median of the 200 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2021 Audi A3 advertised today. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 426 of the 756 first advertised between 7 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £15,550. 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 5 November 2026: valid until 4 April 2027.

It has had 3 MOTs. The latest, on 5 April 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge both sides; rear brake pad(s) wearing thin both sides.

Mileage at that test: 42,137 miles, which matches the advertised 43,550 miles.

Advertised mileage is about 900 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

26 other 2021 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £12,795 to £18,590, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 44,353 miles. Price: £15,660, £110 more 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, blue. Mileage: 42,466 miles. Price: £16,050, £500 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, black. Mileage: 44,709 miles. Price: £16,000, £450 more than this car. Dealer: Richardsons Of Lincoln in Lincoln. AskCar page: https://askcar.co.uk/car/audi-a3-2021-7bfbdff34709

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, grey, 2 miles from this car. Mileage: 84,920 miles. Price: £12,795, £2,755 less than this car. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-c65172f88ab9