2026 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 (s/s) 4dr
• Year: 2026
• Mileage: 2,500 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 121 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 Audi A3 S Line is advertised with 2,500 miles on the clock. The dealer is asking £28,850, which is £749 below the AskCar estimate of £29,599. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. We have tracked this advert today. The seller is Mon Motors Cardiff Audi, based in Cardiff. 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: £749 (2%) under the AskCar estimate of £29,599.

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 2026 Audi A3 with the 1.5 petrol engine is typically advertised at £29,500: the median of the 738 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2026 Audi A3 advertised today. About 3 in 10 of 2026 Audi A3 cars are gone from sale within a month of being advertised: 260 of the 785 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £28,850. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 700 miles lower than the median mileage of a 2026 Audi A3 on AskCar.

Similar cars

54 other 2026 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £26,495 to £36,000, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2026 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 2,500 miles. Price: £28,990, £140 more than this car. Dealer: Stratstone Audi Approved Aylesbury in Aylesbury. AskCar page: https://askcar.co.uk/car/audi-a3-2026-0ea0493d0915
• 2026 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 2,500 miles. Price: £31,999, £3,149 more than this car. Dealer: John Clark Motor Group Aberdeen Audi in Aberdeen. AskCar page: https://askcar.co.uk/car/audi-a3-2026-7aed21ec6206
• 2026 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 2,347 miles. Price: £28,490, £360 less than this car. Dealer: Marshall Motor Group Coulsdon Audi in Coulsdon. AskCar page: https://askcar.co.uk/car/audi-a3-2026-3d6faf1c27ff

• The nearest: 2026 Audi A3 S Line, 1.5 petrol saloon, blue, under a mile from this car. Mileage: 5,375 miles. Price: £27,950, £900 less than this car. Dealer: Mon Motors Cardiff Audi in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2026-9cb6e99c2645