The new Mercedes-Benz SLK: Passion meets efficiency - Daimler

torsion damper, for example. This is designed as a twin-turbine damper, andalso makes comfortable vehicle operation possible at low engine speeds.Page 32In ECO mode this has enabled engine speeds to be reduced as a result, with aconsiderable contribution to fuel economy (up to seven percent). It also allowsan even faster response to accelerator commands. A new hydraulic circuit andoptimised torque converter mapping also contribute to better start-offperformance. As a further fuel economy measure, a new transmission fluidwith a lower viscosity and a long service life for the same cooling performanceis used. This means that replacement of the transmission fluid is onlynecessary every 125,000 kilometres.The optimised electrohydraulic control unit of the transmission and newreduced-friction materials in various parts of the transmission in combinationwith optimised software result in improved shifting comfort. Owing to anoptional, additional demand-controlled ATF pump, 7G-TRONIC also can featurea start/stop function for the first time. This pump ensures readiness to moveoff when the internal oil pump is not operating.Adjustable radiator shutter not only saves fuelFor the first time in a sports car, and depending on the engine variant andcountry version, Mercedes-Benz uses an adjustable radiator shutter in the SLK.This enables the airflow through the engine's cooling module and enginecompartment to be variably controlled. A circular, louvred shutter arrangedparallel to the fan improves the aerodynamics, which in turn lowers fuelconsumption. The engine also reaches its normal operating temperature morerapidly, heating comfort is improved and engine noise is suppressed evenmore.Diesel variant and an AMG version to followIn the fourth quarter of 2011 a powerful four-cylinder diesel engine will beavailable for the new SLK. In 2012 the SLK 55 AMG will follow with a new V8.Daimler Communications, 70546 Stuttgart/GermanyMercedes-Benz – A Daimler Brand