2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2023
• Mileage: 37,010 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 37,010 miles. Priced at £18,999, it is advertised £229 above the AskCar estimate of £18,770. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We have tracked this advert for 39 days. Ask the dealer why the advert shows fewer miles than the 38,146 recorded at the latest MOT. Its MOT is recorded as valid until 24 September 2027. The seller is Eastern Western Motor Group Audi Stirling, based in Stirling. 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: £229 (1%) over the AskCar estimate of £18,770.

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 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £18,999. 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 24 September 2027.

It failed its MOT on 17 September 2026 (supplementary restraint system warning lamp indicates a fault; central rear seat belt buckle not functioning as intended) and passed 8 days later, on 25 September 2026.

Advisories at the latest test: nearside front service brake fluctuating, but not excessively; offside front service brake fluctuating, but not excessively.

Mileage at that test: 38,146 miles. The advert says 37,010 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 10,000 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

20 other 2023 Audi A3 S Line 1.5 petrol manual saloons are for sale at UK dealers, from £15,295 to £22,991, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 37,210 miles. Price: £18,849, £150 less than this car. Dealer: Motorpoint Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e4c081ef0cbd
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 31,996 miles. Price: £17,600, £1,399 less than this car. Dealer: Arval UK in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-9d1546f3fc6e
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 30,952 miles. Price: £19,998, £999 more than this car. Dealer: Arnold Clark Northwich Vauxhall / Kia in Northwich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6e94268d3d75

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, 20 miles from this car. Mileage: 25,310 miles. Price: £20,498, £1,499 more than this car. Dealer: Arnold Clark Glasgow Kia / OMODA / JAECOO in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2023-4f7e96dacf14