2023 Audi A3

1.0 TFSI 30 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (108 bhp)

£20,900

Fair price: within 8% of the typical £20,722 for this model, age and mileage, drawing on 6,484 adverts of this make and model.

Overview

Make
Audi
Model
A3
Trim
S LINE
Version
1.0 TFSI 30 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (108 bhp)
Mileage
16,847 miles
Year
2023
Fuel type
Petrol Hybrid
Body type
Hatchback
Engine
1.0 L
Gearbox
Automatic
Power
108 bhp
Seats
5
CO2
124 g/km
Colour
Black
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

The advertised mileage for this 2023 Audi A3 S Line is 16,847 miles. At £20,900, it is advertised £178 above our estimated market asking price of £20,722. We use UK dealer asking prices, including 6,484 Audi A3 listings, and account for the car’s age, mileage and specification. The asking price is now £800 lower than when we first recorded the advert 35 days ago. Ask the dealer why the advert shows fewer miles than the 17,775 recorded at the latest MOT. Its MOT is recorded as valid until 31 August 2027. The seller is Sytner Select Cardiff, based in Cardiff.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 15 September 2026, 35 days ago. Advert duration calculated on 20 October 2026. Net asking-price reduction: £800 from the first recorded £21,700. 2 price reductions recorded, the latest observed on 10 October 2026.

Recorded asking prices
Date observedAsking price
15 September 2026£21,700
29 September 2026£21,400
10 October 2026£20,900
19 October 2026£20,900

Price and mileage comparison

Estimated market asking price: £20,722. The asking price is £178 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 6,484 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 9,800 miles lower than typical for a 2023 Audi A3.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 31 August 2027. 17,775 miles at the last test.

344 other cars with the same year, trim, gearbox and fuel are for sale from £14,350 to £24,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£14,35082,859 miles
£14,99082,835 miles
£15,69969,776 miles
£15,70051,701 miles
£15,71068,067 miles

These cars have covered 1,217–82,859 miles, compared with 16,847 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Audi A3 cars for sale · 2023 Audi A3 price guide

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Dealer

Sytner Select Cardiff, Cardiff. Across the dealer network: 140 branches, 10,310 cars for sale.

Dealer postcode: CF11 8TT.

Dealer opening hours

Monday
09:30-18:30
Tuesday
09:30-18:30
Wednesday
09:30-18:30
Thursday
09:30-18:30
Friday
09:30-18:30
Saturday
09:00-18:30
Sunday
10:00-16:00

Vehicle photos