2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 34,857 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,857 miles, this 2023 Audi A3 S Line has covered about 7,900 more miles than other 2023 Audi A3 cars. The dealer is asking £20,998, which is £666 above the AskCar estimate of £20,332. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. It first appeared in our advert records 40 days ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Stafford Motorstore / BYD / Vanstore, based in Stafford. 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: £666 (3%) over the AskCar estimate of £20,332.

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 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,600: the median of the 493 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 23 September 2026 at £20,998. 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: valid until 28 August 2027.

It has had one MOT, on 12 August 2026, and passed.

Advisories at the latest test: front inner brake pad(s) wearing thin; offside rear outer child seat fitted not allowing full inspection of adult belt; rear brakes imbalanced requirements only just met. it would appear that the braking system requires adjustment or repair.

Mileage at that test: 33,723 miles, which matches the advertised 34,857 miles.

Advertised mileage is about 7,900 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

128 other 2023 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £16,195 to £24,670, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 34,491 miles. Price: £19,890, £1,108 less than this car. Dealer: Stratstone Tamworth Audi in Tamworth. AskCar page: https://askcar.co.uk/car/audi-a3-2023-914d26fc8648
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 34,368 miles. Price: £19,750, £1,248 less than this car. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e341e2c9a3ba
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 34,062 miles. Price: £19,635, £1,363 less than this car. Dealer: Carbase Lympsham in Lympsham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ab3a974dccc2

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, black, 11 miles from this car. Mileage: 16,000 miles. Price: £20,595, £403 less than this car. Dealer: P&W Motor Company in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/audi-a3-2023-2a6cb60d7a80