2015 Mercedes-Benz SLK 2.1 SLK250d

Overview

• Make: Mercedes-Benz
• Model: SLK
• Version: 2.1 SLK250d G-Tronic RWD Euro 6 (s/s) 2dr (201 bhp)
• Year: 2015
• Mileage: 18,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2015 Mercedes-Benz SLK has covered 18,000 miles, around 35,200 fewer miles than is typical for its age. Its asking price of £14,990 is £2,299 above the AskCar estimate of £12,691. The AskCar estimate uses UK dealer asking prices, including 412 Mercedes-Benz SLK adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 80 days ago, the asking price has dropped by £1,000. Its advertised mileage matches the government's MOT record. It is advertised by Northover Cars in Whitstable. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,299 (18%) over the AskCar estimate of £12,691.

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 412 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 10 November 2026.

A 2015 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £9,800: the median of the 38 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2015 Mercedes-Benz SLK has been on sale for at least 80 days.

Price history

AskCar first saw this advert on 22 August 2026 at £15,990. Its asking price is now £14,990, £1,000 less. The latest price cut was seen on 10 November 2026.

Price changes recorded:

• 22 August 2026: £15,990
• 4 September 2026: £15,490
• 10 November 2026: £14,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 3 August 2027.

It has had 8 MOTs. The latest, on 4 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 17,179 miles, which matches the advertised 18,000 miles.

Advertised mileage is about 35,200 miles lower than the median mileage of a 2015 Mercedes-Benz SLK on AskCar.