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: 20,186 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: Grey
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A5 S Line has covered 20,186 miles, around 9,000 fewer miles than is typical for its age. The AskCar estimate for this car is £25,639. It is priced at £26,990, which is £1,351 above that estimate. The AskCar estimate uses UK dealer asking prices, including 1,830 Audi A5 adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 61 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Agnew Group Belfast Audi, based in Belfast. 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: £1,351 (5%) over the AskCar estimate of £25,639.

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 1,830 priced Audi A5 adverts across different ages and specifications, as of 2 November 2026.

A 2023 Audi A5 with the 2.0 diesel engine is typically advertised at £24,000: the median of the 268 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Audi A5 has been on sale for at least 61 days.

Price history

AskCar first saw this advert on 2 September 2026 at £26,990. Its asking price has not changed.

Price changes recorded:

• 2 September 2026: £26,990
• 3 September 2026: £26,890
• 10 September 2026: £26,790
• 3 October 2026: £26,490
• 23 October 2026: £26,290
• 27 October 2026: £25,990
• 29 October 2026: £26,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 June 2027.

It has had one MOT, on 24 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,042 miles, which matches the advertised 20,186 miles.

Advertised mileage is about 9,000 miles lower than the median mileage of a 2023 Audi A5 on AskCar.

Similar cars

74 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 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A5 S Line, 2.0 diesel hatchback, blue. Mileage: 21,061 miles. Price: £24,295, £2,695 less than this car. Dealer: Lookers Audi Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/audi-a5-2023-42e4f3f7eb3d
• 2023 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 19,158 miles. Price: £26,990, the same price as 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, grey. Mileage: 18,993 miles. Price: £26,490, £500 less than this car. Dealer: Agnew Group Portadown Audi in Portadown. AskCar page: https://askcar.co.uk/car/audi-a5-2023-858ca42e5fb9

• The nearest: 2023 Audi A5 S Line, 2.0 diesel hatchback, black, under a mile from this car. Mileage: 56,338 miles. Price: £21,790, £5,200 less than this car. Dealer: Agnew Group Belfast Audi in Belfast. AskCar page: https://askcar.co.uk/car/audi-a5-2023-26362931165f