Engine and Drivetrain
Engine 5,786-cc SOHC 36-valve V-12 engine. Two-piece high-pressure die-cast alloy cylinder block, alloy heads. Variable valve timing, sodium-filled exhaust valves.
Net power 362 hp @ 5,500 rpm
Net torque 391 lb-ft torque @ 4,100 rpm
Compression ratio 10:1
Fuel requirement Premium unleaded, 91 pump octane.
Fuel and ignition ME 2.7 engine management sequential multipoint fuel injection and phased twin-spark ignition with individual cylinder control of fuel spray, spark timing/phase and antiknock control. Two high-energy ignition coils and two spark plugs per cylinder, with 100,000-mile spark plug intervals. Electronically controlled throttle.
Active Cylinder Control Microprocessor-operated electromagnetic/hydraulic actuators imperceptibly deactivate the firing of the driver-side bank of cylinders when peak power is not required, for improved efficiency.
Intake system Magnesium 2-stage resonance intake manifold increases the intake runner length at lower rpm for improved response.
Transmission Driver-adaptive electronic 5-speed automatic. Touch Shift allows driver to manually downshift and allow upshifts by nudging the shift lever side-to-side from Drive. Winter shift mode starts the car moving in 2nd gear or a special second Reverse gear to help improve takeoff on slippery surfaces. Display in instrument cluster indicates gear selection and shift mode.
Rear axle ratio 2.82:1
Heimild: www.mercedes.benz.com
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