With the SLK 250 CDI, Mercedes-Benz is not only continuing its unrivaled diesel tradition but also refuting the misconception that diesel engines and sports cars do not go together. The four-cylinder diesel engine of the Roadster generates 150 kW (204 hp) from a displacement of just under 2.2 litres, and gives the two-seater a decidedly sporty character. 6.7 seconds elapse when sprinting from zero to 100 km/h – a figure worthy of a sports car. Moreover, with an NEDC combined diesel consumption of 4.9 litres per 100 km, the SLK 250 CDI is the most economical and therefore environmentally friendly roadster in its segment.
For the first time Mercedes-Benz is offering the sporty SLK Roadster with a diesel engine. The four-cylinder diesel engine with a displacement of 2143 cc generates an output of 150 kW (204 hp) and 500 newton metres of torque – as much as a petrol engine with twice the displacement would normally generate. This makes the new SLK 250 CDI the most powerful diesel model in its class, and gives the Roadster the potential for extremely sporty performance.
Equipped with the standard 7G-TRONIC PLUS automatic transmission (a six-speed manual transmission will follow in the second quarter of 2012), the diesel SLK is able to sprint from zero to 100 km/h in 6.7 seconds and achieve a top speed of 243 km/h. Moreover, the flexibility of the SLK 250 CDI is nothing short of phenomenal. Thanks to its enormous diesel torque it accelerates from 80 to 120 km/h in just 4.3 seconds – easily the best figure in this class, making for safe and effortless overtaking.
Apart from this, the SLK 250 CDI is the most economical and therefore the most environmentally compatible roadster in its segment. It is happy with 4.9 litres of diesel fuel per 100 kilometres (NEDC combined consumption), which corresponds to CO2 emissions of 128 g/km. In other words, the diesel SLK combines thoroughbred sports car performance with the fuel economy of a sub-compact. This guarantees effortlessly superior driving pleasure with great fuel efficiency.
The diesel engine achieves its exemplary output, torque, fuel consumption and emissions figures, as well as its highly impressive smoothness for a diesel unit, thanks to a series of innovative technologies. These include fourth-generation common-rail injection with precise injection timing, as well as two-stage turbocharging. Like all SLK models, the SLK 250 CDI is equipped with an ECO start/stop system as standard.
Its frugal fuel consumption makes the SLK 250 CDI a car with superior long-distance qualities. Using the European motorways, it is quite possible to drive non-stop from the North Sea all the way to a beach on the Mediterranean. Very comfortable sports seats, a comfortable suspension setup and the largest luggage capacity in this segment also do their bit to create the right conditions.