2023 Audi A5 2.0 TDI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (161 bhp)
• Year: 2023
• Mileage: 19,748 miles
• Fuel: Diesel, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 161 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A5 S Line is advertised with 19,748 miles, approximately 9,500 below the typical mileage for its age. The dealer is asking £25,156, which is £434 below the AskCar estimate of £25,590. To work out the AskCar estimate, we analyse UK dealer adverts for 1,869 Audi A5 cars across different ages and specifications. We first recorded this advert 149 days ago, and its asking price has since fallen by £834. Its advertised mileage matches the government's MOT record. The seller is JCT600 Boston Audi, based in Boston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £434 (1%) under the AskCar estimate of £25,590.

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 1,869 priced Audi A5 adverts across different ages and specifications, as of 7 November 2026.

A 2023 Audi A5 with the 2.0 diesel engine is typically advertised at £24,000: the median of the 277 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 Audi A5 has been on sale for at least 149 days.

Price history

AskCar first saw this advert on 11 June 2026 at £25,990. Its asking price is now £25,156, £834 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 10 July 2026: £25,990
• 17 August 2026: £26,262
• 22 August 2026: £25,974
• 25 August 2026: £25,728
• 31 August 2026: £25,978
• 2 September 2026: £25,737
• 7 September 2026: £25,329
• 20 September 2026: £25,290
• 22 September 2026: £24,994
• 29 September 2026: £24,800
• 17 October 2026: £24,629
• 22 October 2026: £23,990
• 7 November 2026: £25,156

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 6 May 2027.

It has had one MOT, on 7 May 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 19,729 miles, which matches the advertised 19,748 miles.

Advertised mileage is about 9,500 miles lower than the median mileage of a 2023 Audi A5 on AskCar.

Similar cars

73 other 2023 Audi A5 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £15,990 to £29,900, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 20,186 miles. Price: £26,990, £1,834 more than this car. Dealer: Agnew Group Belfast Audi in Belfast. AskCar page: https://askcar.co.uk/car/audi-a5-2023-f35a41b6fa4c
• 2023 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 19,158 miles. Price: £26,490, £1,334 more than this car. Dealer: Agnew Group Portadown Audi in Portadown. AskCar page: https://askcar.co.uk/car/audi-a5-2023-1163e00ede62
• 2023 Audi A5 S Line, 2.0 diesel hatchback, blue. Mileage: 18,600 miles. Price: £24,995, £161 less than this car. Dealer: Hadwins Approved in Grange-over-Sands. AskCar page: https://askcar.co.uk/car/audi-a5-2023-c262f208fb4d

• The nearest: 2023 Audi A5 S Line, 2.0 diesel hatchback, black, 43 miles from this car. Mileage: 17,000 miles. Price: £25,607, £451 more than this car. Dealer: Vindis Group Huntingdon Audi in Huntingdon. AskCar page: https://askcar.co.uk/car/audi-a5-2023-98dd744154d8