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) (148 bhp)
• Year: 2021
• Mileage: 24,666 miles
• Fuel: Petrol
• Body: 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

This 2021 Audi A3 S Line is advertised with 24,666 miles, approximately 18,900 below the typical mileage for its age. The AskCar estimate for this car is £18,356. It is priced at £16,995, which is £1,361 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. We first recorded this advert 53 days ago, and its asking price has since fallen by £300. Its advertised mileage matches the government's MOT record. It is for sale at Motor Trust Haslingden in Rossendale. 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: £1,361 (7%) under the AskCar estimate of £18,356.

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 53 days.

Price history

AskCar first saw this advert on 10 September 2026 at £17,295. Its asking price is now £16,995, £300 less. The latest price cut was seen on 23 September 2026.

Price changes recorded:

• 10 September 2026: £17,295
• 12 September 2026: £17,000
• 23 September 2026: £16,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 31 March 2027.

It has had 3 MOTs. The latest, on 9 March 2026, passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 24,415 miles, which matches the advertised 24,666 miles.

Advertised mileage is about 18,900 miles lower than the median mileage of a 2021 Audi A3 on AskCar.