2023 Audi A3 1.5 TFSI S Line
Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
Price: £20,300. Fair price: £822 (4%) over the AskCar estimate of £19,478, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,516 priced Audi A3 adverts on AskCar as of 1 November 2026.
AskCar lists 6,654 used Audi A3 from 2,245 UK dealerships, as of 1 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)
- Mileage
- 25,288 miles
- Year
- 2023
- Fuel type
- Petrol
- Body type
- Hatchback
- Engine
- 1.5 L
- Gearbox
- Manual
- Power
- 148 bhp
- Seats
- 5
- CO2
- 136 g/km
- Colour
- Grey
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Engine badge
- TFSI
- Emissions standard
- Euro 6
About this car
The advertised mileage for this 2023 Audi A3 S Line is 25,288 miles. Its asking price of £20,300 is £822 above the AskCar estimate of £19,478. The AskCar estimate uses 6,516 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. Its recorded MOT is valid until 21 October 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Marshall Motor Group Newbury Audi, based in Newbury.
Stock data as of 1 November 2026.
Price history
AskCar first saw this advert on 1 November 2026.
| Date observed | Asking price |
|---|---|
| 1 November 2026 | £20,300 |
Price and mileage comparison
Fair price: £822 (4%) over the AskCar estimate of £19,478.
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 6,516 priced Audi A3 adverts across different ages and specifications, as of 1 November 2026.
Advertised mileage is about 1,700 miles lower than the median mileage of a 2023 Audi A3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 21 October 2027. 25,034 miles at the last test.
Other matching cars
238 other 2023 Audi A3 S Line manual petrol cars are for sale at UK dealers from £12,300 to £22,991, as of 1 November 2026.
The 5 cheapest:
- 2023 Audi A3. Price: £12,300. Mileage: 89,854 miles. Dealer: Fusion Motors in Grays. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c6b2ea78bdfb
- 2023 Audi A3. Price: £12,800. Mileage: 95,398 miles. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/audi-a3-2023-475b709832ac
- 2023 Audi A3. Price: £13,400. Mileage: 69,441 miles. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c83cd1ef4bb5
- 2023 Audi A3. Price: £13,995. Mileage: 77,000 miles. Dealer: Snigwig Car Centre in Northallerton. AskCar page: https://askcar.co.uk/car/audi-a3-2023-2f2000109774
- 2023 Audi A3. Price: £13,995. Mileage: 94,000 miles. Dealer: Car-Isma Cheshire in Knutsford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-5de73b113b59
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A3 cars for sale · 2023 Audi A3 price guide
More like this
Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.