Employs four valves per cylinder with continuous Variable Valve Timing (VVT) on both intake and exhaust camshafts. Intake Manifold Parts Diagram
Whether you are rebuilding a W209 CLK350 or replacing the water pump on an R171 SLK280, keep a printed M272 parts diagram in your garage. Your engine will thank you. Mercedes Benz M272 Engine Parts Diagram
One of the most complex assemblies of the M272 is its . This system optimizes airflow for both low-RPM torque and high-RPM power. Part Number Label Component Description 12 Intake Manifold Main housing with integral vacuum reservoir. 22/6 Switchover Diaphragm Actuates the long/short runner flap for variable length. 12/1 & 12/2 Swirl Flap Shafts Controls swirl flaps for improved fuel/air mixture. Y22/6 Switchover Valve Solenoid that manages vacuum to the runners. M16/6 Throttle Valve Actuator Regulates air intake into the manifold. Timing and Camshaft Assembly Employs four valves per cylinder with continuous Variable
The M272 uses many torque-to-yield (angle torque) bolts. You must replace bolts for the cylinder head, connecting rods, and main bearings if you disassemble them. A parts diagram will label these as "USE NEW BOLT." One of the most complex assemblies of the M272 is its
Four total (two per bank), with continuous VVT adjustable through a 40° range.
The M272 was a pioneer for Mercedes, introducing four valves per cylinder and continuously variable valve timing on both the intake and exhaust camshafts. The for the cylinder heads is one of the most complex sections you will encounter.
The is more than a mechanic’s tool—it is a survival guide. By understanding where the balance shaft lives (deep in the crankcase), how the swirl flaps route air (through the intake runners), or why the camshaft adjusters (phasers) cause cold-start rattle, you can diagnose issues without guessing.