2023 Audi A3 1.5 TFSI S Line

Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)

Price: £20,977. Fair price: £321 (1%) under the AskCar estimate of £21,298, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,600 priced Audi A3 adverts on AskCar as of 31 October 2026.

AskCar lists 6,729 used Audi A3 from 2,260 UK dealerships, as of 31 October 2026.

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)
Mileage
25,336 miles
Year
2023
Fuel type
Petrol
Body type
Hatchback
Engine
1.5 L
Gearbox
Automatic
Power
148 bhp
Seats
5
CO2
135 g/km
Colour
Grey
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
S tronic
Engine badge
TFSI
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

This 2023 Audi A3 S Line is advertised with 25,336 miles on the clock. The dealer is asking £20,977, which is £321 below the AskCar estimate of £21,298. To work out the AskCar estimate, we analyse UK dealer adverts for 6,600 Audi A3 cars across different ages and specifications. We first recorded this car for sale today. Its recorded MOT is valid until 30 October 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at CarSupermarket.com Goole Recon Centre in East Riding of Yorkshire.

Stock data as of 31 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 31 October 2026.

Recorded asking prices
Date observedAsking price
31 October 2026£20,977

Price and mileage comparison

Fair price: £321 (1%) under the AskCar estimate of £21,298.

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 6,600 priced Audi A3 adverts across different ages and specifications, as of 31 October 2026.

Advertised mileage is about 1,600 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 30 October 2027. 25,338 miles at the last test.

Other matching cars

372 other 2023 Audi A3 S Line automatic petrol cars are for sale at UK dealers from £14,990 to £27,898, as of 31 October 2026.

The 5 cheapest:

The 372 matching cars have covered 1,217 to 82,835 miles, compared with 25,336 miles for this car.

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

26 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.