2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2023
• Mileage: 13,070 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 13,070 miles on the clock, this 2023 Audi A3 S Line has done roughly 13,900 fewer miles than a typical 2023 Audi A3. The AskCar estimate for this car is £23,038. It is priced at £21,995, which is £1,043 below that estimate. 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 first saw this car advertised 37 days ago. Its asking price has since fallen by £1,355. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Automotive Chelmsford Audi, based in Chelmsford. 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: £1,043 (4%) under the AskCar estimate of £23,038.

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 37 days.

Price history

AskCar first saw this advert on 26 September 2026 at £23,350. Its asking price is now £21,995, £1,355 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 26 September 2026: £23,350
• 1 October 2026: £22,995
• 7 October 2026: £22,795
• 14 October 2026: £22,595
• 20 October 2026: £22,295
• 27 October 2026: £22,075
• 1 November 2026: £21,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 January 2027.

It has had one MOT, on 19 January 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 11,266 miles, which matches the advertised 13,070 miles.

Advertised mileage is about 13,900 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

41 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £24,499, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 13,536 miles. Price: £23,498, £1,503 more than this car. Dealer: Arnold Clark Salford Vauxhall / Fiat / Abarth / MG / Jeep in Salford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a673033305f1
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 14,500 miles. Price: £23,137, £1,142 more than this car. Dealer: Lookers Audi Teesside in Teesside. AskCar page: https://askcar.co.uk/car/audi-a3-2023-8c5ca1b42654
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 14,552 miles. Price: £23,499, £1,504 more than this car. Dealer: Eastern Western Motor Group Audi Stirling in Stirling. AskCar page: https://askcar.co.uk/car/audi-a3-2023-555263029aad

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, blue, 15 miles from this car. Mileage: 21,304 miles. Price: £21,790, £205 less than this car. Dealer: Safwat Cars in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/audi-a3-2023-4ef63264a17e