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: 71,881 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 has covered 71,881 miles, around 28,600 more miles than is typical for its age. Its asking price of £14,495 is £597 above the AskCar estimate of £13,898. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 105 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Simpson Motors in Dunfermline. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £597 (4%) over the AskCar estimate of £13,898.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A3 with the 1.5 petrol engine is typically advertised at £18,000: the median of the 194 for sale on AskCar, as of 4 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A3 has been on sale for at least 105 days. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 419 of the 741 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 22 July 2026 at £14,495. 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 4 November 2026: valid until 24 June 2027.

It has had 5 MOTs. The latest, on 23 June 2026, passed.

Advisories at the latest test: nearside rear brake disc worn, pitted or scored, but not seriously weakened; offside rear brake disc worn, pitted or scored, but not seriously weakened; offside rear shock absorbers has light misting of oil.

Mileage at that test: 71,016 miles, which matches the advertised 71,881 miles.

Advertised mileage is about 28,600 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

22 other 2021 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £12,795 to £18,490, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 73,500 miles. Price: £14,599, £104 more than this car. Dealer: Stratstone Manchester Audi in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a4f6bae75b27
• 2021 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 79,584 miles. Price: £14,999, £504 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: 63,297 miles. Price: £15,499, £1,004 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, black, 33 miles from this car. Mileage: 33,741 miles. Price: £17,695, £3,200 more than this car. Dealer: Hawco Group in Dundee. AskCar page: https://askcar.co.uk/car/audi-a3-2021-53ed96e05fc1