2023 Audi A3 2.0 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 42,191 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 42,191 miles, this 2023 Audi A3 S Line has covered about 15,200 more miles than other 2023 Audi A3 cars. The dealer is asking £19,899, which is £642 below the AskCar estimate of £20,541. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The asking price is now £600 lower than when we first recorded the advert 17 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is cinch, based in Exeter. 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: £642 (3%) under the AskCar estimate of £20,541.

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 2.0 diesel engine is typically advertised at £21,500: the median of the 113 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 16 October 2026 at £20,499. Its asking price is now £19,899, £600 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 16 October 2026: £20,499
• 23 October 2026: £20,199
• 28 October 2026: £19,899

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 October 2027.

It has had 2 MOTs. The latest, on 21 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,027 miles, which matches the advertised 42,191 miles.

Advertised mileage is about 15,200 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

40 other 2023 Audi A3 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £16,203 to £24,699, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 2.0 diesel hatchback, blue. Mileage: 42,000 miles. Price: £19,891, the same price as this car. Dealer: Lookers Audi Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2023-be670c962498
• 2023 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 41,667 miles. Price: £21,000, £1,101 more than this car. Dealer: Sytner Group Derby Audi in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e8bc889c7c4a
• 2023 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 40,883 miles. Price: £20,998, £1,099 more than this car. Dealer: Arnold Clark Ayr Kia in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-94ccd7ec66e5

• The nearest: 2023 Audi A3 S Line, 2.0 diesel hatchback, white, 66 miles from this car. Mileage: 29,090 miles. Price: £22,494, £2,595 more than this car. Dealer: Sinclair Volkswagen (Swansea) in Swansea. AskCar page: https://askcar.co.uk/car/audi-a3-2023-51a09cb9a58b