: Made of magnesium, this manifold uses a two-stage design with integrated "tumble flaps" to improve torque at low speeds and airflow at high RPM.
The DOHC (Double Overhead Camshaft) cylinder heads are cast from aluminum and house 4 valves per cylinder. Mercedes Benz M272 Engine Parts Diagram
: A common area for maintenance, this system includes an oil separator and a positive crankcase ventilation (PCV) valve to manage internal engine pressure. : Made of magnesium, this manifold uses a
: Both intake and exhaust camshafts can be adjusted through a 40-degree range to optimize performance across the RPM band. : Both intake and exhaust camshafts can be
: These units, often referred to as "vanos" in other brands, are secured to the camshafts by center valves (intake is right-hand thread; exhaust is left-hand thread).
: An electronically controlled 3-plate thermostat regulates coolant temperature, replacing traditional mechanical units for faster engine warm-up. Common Replacement Parts & Maintenance