2015 Mercedes-Benz SLK 2.1 SLK250 CDI AMG Sport

Overview

• Make: Mercedes-Benz
• Model: SLK
• Trim: AMG Sport
• Version: 2.1 SLK250 CDI AMG Sport G-Tronic+ RWD Euro 5 (s/s) 2dr (201 bhp)
• Year: 2015
• Mileage: 89,900 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 132 g/km
• Emissions standard: Euro 5

About this car

At 89,900 miles, this 2015 Mercedes-Benz SLK AMG Sport has covered about 34,900 more miles than other 2015 Mercedes-Benz SLK cars. The dealer is asking £7,295, which is £102 below the AskCar estimate of £7,397. To work out the AskCar estimate, we analyse UK dealer adverts for 417 Mercedes-Benz SLK cars across different ages and specifications. We first recorded this advert 99 days ago, and its asking price has since fallen by £600. Its advertised mileage matches the government's MOT record. The seller is NWTC Haslingden, based in Rossendale. 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: £102 (1%) under the AskCar estimate of £7,397.

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 417 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 7 November 2026.

A 2015 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £9,600: the median of the 38 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2015 Mercedes-Benz SLK has been on sale for at least 99 days.

Price history

AskCar first saw this advert on 31 July 2026 at £7,895. Its asking price is now £7,295, £600 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 31 July 2026: £7,895
• 8 September 2026: £7,695
• 11 September 2026: £7,495
• 7 October 2026: £7,395
• 3 November 2026: £7,295

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 27 May 2027.

It has had 9 MOTs. The latest, on 28 May 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge; nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 89,374 miles, which matches the advertised 89,900 miles.

Advertised mileage is about 34,900 miles higher than the median mileage of a 2015 Mercedes-Benz SLK on AskCar.

Similar cars

30 other 2015 Mercedes-Benz SLK AMG Sport 2.1 diesel automatic convertibles are for sale at UK dealers, from £5,894 to £12,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, red. Mileage: 96,173 miles. Price: £5,894, £1,401 less than this car. Dealer: Car Vault in Welwyn Garden City. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-9f6635674287
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, grey. Mileage: 82,200 miles. Price: £8,895, £1,600 more than this car. Dealer: Graham Mitchell in Bournemouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-456697d32480
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver. Mileage: 81,000 miles. Price: £8,795, £1,500 more than this car. Dealer: KJ Prestige in Bournemouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-ea490450cd34

• The nearest: 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, black, 7 miles from this car. Mileage: 69,108 miles. Price: £9,985, £2,690 more than this car. Dealer: The Car Factory in Blackburn. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-79b52ccefcf8