
| Model | Cylinder number and arrangement | Displacement (cc) | Rated output (kW at rpm)[1] | Top speed (km/h) | Fuel consumption combined (l/100 km)[2] | CO2 emissions (g/km), combined[2] |
|---|---|---|---|---|---|---|
| SLK 200 BlueEFFICIENCY | R4 | 1796 | 135/5250 (135/5250)) | 240 (237) | 6.4–6.8 (6.1–6.5) | 149–158 (142–151) |
| SLK 250 BlueEFFICIENCY | R4 | 1796 | -(150/5500) | -(243) | -(6.2–6.6) | -(144–153) |
| SLK 350 BlueEFFICIENCY | V6 | 3498 | -(225/6500) | -(250, electronically limited) | -(7.1) | -(167) |
The petrol engines available for the new SLK are just right for giving unadulterated roadster driving pleasure. They are optimally tuned to meet the requirements of this type of vehicle. In addition, all the petrol engines, whether 4 or 6-cylinder, deploy cutting-edge technology and combine smooth running characteristics with ecological efficiency and the ultimate in agility and driving dynamics.
The optimised 4-cylinder powerplant with a displacement of 1.8 litres, direct petrol injection, two overhead camshafts, variable valve timing and turbocharger, offers outstanding torque and power, not to mention appropriately low fuel consumption and emissions. You can choose between the following models: SLK 200 BlueEFFICIENCY and SLK 250 BlueEFFICIENCY:
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The 3.5 litre V6 engine in the SLK 350 BlueEFFICIENCY is the top-of-the-range engine in the new SLK Roadster. This drive unit combines refinement and ecological efficiency with the highest degree of agility and dynamism. It achieves this with - among other things - direct fuel injection and 4-valve technology.
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Figures in brackets apply to vehicles with automatic transmission
[1] Figures for rated output and rated torque in accordance with Directive 80/1269/EEC in the currently applicable version.
[2] The figures shown for fuel consumption and CO2 emissions were obtained in accordance with the prescribed measuring process (Directive 80/1268/EEC in its currently applicable version). The figures do not apply to a specific vehicle and do not constitute part of the product offer. They are provided solely for the purposes of comparison between different vehicle models

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