2015 Mercedes-Benz SLK 2.1 SLK250 CDI

Version: 2.1 SLK250 CDI G-Tronic+ RWD Euro 5 (s/s) 2dr (201 bhp)

Price: £8,995. Fair price: £275 (2%) under the AskCar estimate of £9,270, our expected asking price for this car from its model, age, mileage and specification, drawing on 389 priced Mercedes-Benz SLK adverts on AskCar as of 30 October 2026.

AskCar lists 441 used Mercedes-Benz SLK from 345 UK dealerships, as of 30 October 2026.

Overview

Make
Mercedes-Benz
Model
SLK
Version
2.1 SLK250 CDI G-Tronic+ RWD Euro 5 (s/s) 2dr (201 bhp)
Mileage
59,075 miles
Year
2015
Fuel type
Diesel
Body type
Convertible
Engine
2.1 L
Gearbox
Automatic
Power
201 bhp
Seats
2
CO2
132 g/km
Colour
White
Doors
2
Driven wheels
Rear Wheel Drive
Gearbox version
G-Tronic+
Engine badge
SLK250 CDI
Emissions standard
Euro 5

About this car

This 2015 Mercedes-Benz SLK is advertised with 59,075 miles, approximately 2,600 above the typical mileage for its age. Its asking price of £8,995 is £275 below the AskCar estimate of £9,270. The AskCar estimate uses 389 UK dealer adverts for the Mercedes-Benz SLK, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. The latest MOT record shows an expiry date of 27 November 2027, with the advertised mileage consistent with the recorded reading. It is for sale at Green Tree Cars in Doncaster.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 30 October 2026.

Recorded asking prices
Date observedAsking price
30 October 2026£8,995

Price and mileage comparison

Fair price: £275 (2%) under the AskCar estimate of £9,270.

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 389 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 2,600 miles higher than the median mileage of a 2015 Mercedes-Benz SLK on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 27 November 2027. 59,060 miles at the last test.

Other matching cars

6 other 2015 Mercedes-Benz SLK automatic diesel cars are for sale at UK dealers from £7,690 to £10,962, as of 30 October 2026.

The 5 cheapest:

The 6 matching cars have covered 28,350 to 83,797 miles, compared with 59,075 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all Mercedes-Benz SLK cars for sale · 2015 Mercedes-Benz SLK price guide

More like this

Photos

23 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.