160 kW / 218 PS / 215 hp (ECE) Horsepower gross: Transmission type: manual. Number of gears: 6. According to our sources, oil, coolant and fuel capacity for this version of 2001 Mercedes-Benz SLK 320 are as follows: Engine lubricant oil capacity: 8 liter / 8.5 U.S. qt / 7 imp. qt.