SLK 320 Engine

3,199-cc SOHC 18-valve V-6. High-pressure die-cast alloy cylinder block, alloy heads.

Net power: 215 hp @ 5,700 rpm

Net torque: 229 lb-ft @ 3,000-4,600 rpm

Compression ratio 10.0:1

Fuel requirement Premium unleaded, 91 pump octane.

Fuel and ignition system ME 2.8 engine management. Integrated sequential multipoint fuel injection and phased twin-spark ignition includes individual cylinder control of fuel spray, spark timing phase, and antiknock. Two spark plugs per cylinder, 100,000-mile spark plug intervals. Electronically controlled throttle.

Intake system Magnesium 2-stage resonance intake manifold increases intake runner length at lower rpm for improved response.

Overall View

320 Intake and Exhaust System

3 Valve/2 Spark Plug Design

3.2 Liter V-6 Engine