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: 36,065 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 36,065 miles on the clock, this 2021 Audi A3 S Line has done roughly 7,500 fewer miles than a typical 2021 Audi A3. Priced at £15,990, it is advertised £1,154 below the AskCar estimate of £17,144. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We have tracked this advert for 7 days. The latest recorded MOT expiry date is 9 September 2026, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Carworld Car Supermarket in Peterborough. 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: £1,154 (6%) under the AskCar estimate of £17,144.

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 7 days.

Price history

AskCar first saw this advert on 26 October 2026 at £15,990. 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 2 November 2026: the latest record we hold ran out on 9 September 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 2 September 2025, passed.

Advisories at the latest test: nearside front shock absorbers has light misting of oil; rear tyre slightly damaged/cracking or perishing both; nearside rear tyre worn close to legal limit/worn on edge worn inner edge.

Mileage at that test: 31,015 miles, which matches the advertised 36,065 miles.

Advertised mileage is about 7,500 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, blue. Mileage: 35,509 miles. Price: £17,135, £1,145 more than this car. Dealer: LSH Auto Mercedes-Benz of Stockport in Stockport. AskCar page: https://askcar.co.uk/car/audi-a3-2021-6a9ce2127541
• 2021 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 34,973 miles. Price: £16,995, £1,005 more than this car. Dealer: Carite in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2021-4bc74adb4490
• 2021 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 39,260 miles. Price: £16,394, £404 more than this car. Dealer: cinch in Bexley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-89db664f157c

• The nearest: 2021 Audi A3 S Line, 1.5 petrol hatchback, white, 13 miles from this car. Mileage: 30,281 miles. Price: £16,995, £1,005 more than this car. Dealer: Sycamore Stamford in Stamford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-95bc1d4fec91