2023 Audi A3 1.5 TFSI S Line
Price: £20,500. Fair price: £667 (3%) over the AskCar estimate of £19,833, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.
AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.
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: 2023
- Mileage: 21,169 miles
- Fuel: Petrol
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.5 litres, 148 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Blue
- CO2: 136 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 21,169 miles on the clock, this 2023 Audi A3 S Line has done roughly 5,800 fewer miles than a typical 2023 Audi A3. Priced at £20,500, it is advertised £667 above the AskCar estimate of £19,833. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 41 days. The seller is Sytner Select Swindon, based in Swindon. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £667 (3%) over the AskCar estimate of £19,833.
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 41 days.
Price history
AskCar first saw this advert on 22 September 2026 at £20,500. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 5,800 miles lower than the median mileage of a 2023 Audi A3 on AskCar.
Similar cars
79 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £13,995 to £22,498, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 21,628 miles. Price: £19,927, £573 less than this car. Dealer: Lookers Audi Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2023-09f8e26aaec5
- 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 20,641 miles. Price: £19,799, £701 less than this car. Dealer: cinch in Wimbledon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ed811242a3fc
- 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 20,401 miles. Price: £20,998, £498 more than this car. Dealer: Arnold Clark Derby Motorstore in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ea18545510d1
- The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, 22 miles from this car. Mileage: 25,288 miles. Price: £20,300, £200 less than this car. Dealer: Marshall Motor Group Newbury Audi in Newbury. AskCar page: https://askcar.co.uk/car/audi-a3-2023-dd9dae7b3f7b
Browse all Audi A3 cars for sale · 2023 Audi A3 price guide
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- Used Audi A3 S Line prices
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Photos
34 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.