2012 Mercedes-Benz SLK to receive a 2.2-liter diesel engine

Article by Christian Andrei, on October 7, 2010

Mercedes-Benz released today the first teaser with the 2012 SLK coupe-cabriolet and together with this new details appeared on the web. What we did find out is that the new car is going to receive for the first time a diesel engine which will be featured on the SLK 250 CDI.

This means that the car will use a 2.2-liter diesel engine capable to deliver 204 hp and an impressive 500 Nm of torque, same found on the 2011 Mercedes-Benz S 250 CDI.

With this engine, the S 250 CDI can sprint from 0 to 100 km/h (62 mph) in just 8.2 seconds and has a top speed of 240 km/h (150 mph). It also boasts a fuel consumption rating of 5.7 l/100km (41 mpg), while its CO2 emissions are at 149 g/km.

These performances are a result of two-stage turbocharging, which consists of a small high-pressure (HP) turbocharger and a large low-pressure (LP) turbocharger.

Furthermore, the car will also receive the new V6 engine found on the new S-Class, and capable to deliver 306 hp. Regarding the debut of the new car, this might take place at the 2010 LA Auto Show in November.

Change is the only constant thing in this world, as they say. Thus, it’s only natural for Mercedes-Benz to introduce some changes into its two-seater SLK. The result: a longer and taller SLK, with lots more space than its predecessor.

Of course, dimensions like length, width, wheelbase and others, remain unchanged and are carried out from the outgoing model of the SLK. For instance, the new SLK retains part of the chassis architecture of its predecessor.

The company’s engineers simply tweaked the older model’s chassis to give the new SLK more dynamics and agility. The car’s performance and handling on various road conditions have also been improved by enhancements to the McPherson strut front. Even the multi-link rear suspension received engineering updates as well.

These are rounded out by new hub carriers. The new design now uses forged aluminum material. This ensures that there are less unsprung masses in the new SLK compared to its direct predecessor. Aluminum and carbon fibre materials also figure prominently in the new SLK’s design.

The rear bulkhead is constructed from the latter material, while much of the bodywork as well as the chassis were constructed out of the former. The rack and pinion steering also saw improvement, with only 2.8 turns now between locks. The outgoing model had 2.8 turns, for comparison.

What results is a lightweight SLK, with kerbweight only at 1,435 kilograms. Complementing the car’s lightweight construction is improved aerodynamics. The new SLK now has a drag co-efficient of 0.30, while the outgoing model has co-efficient of 0.32.

This translates to a new model that has improved acoustics and noise control for its cabin. Last but not the least, the new SLK now has more space for luggage, able to accommodate 335 liters with the roof up. Closing the roof and stowing it will give room for only 225 liters.

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