Mercedes Benz M272 Engine Parts Diagram -

M272

The Mercedes-Benz is a naturally aspirated 90° V6 engine that introduced several advanced features, including continuous variable valve timing (VVT) and a variable-length intake manifold. A parts diagram for this engine typically highlights three primary areas: the valvetrain and timing system, the variable intake manifold, and the engine block assembly. Key Engine Components and Systems

• Engine block
• Cylinder liners
• Piston rings
• Connecting rods
• Crankshaft

Dual-Length Runners

: The system switches between long runners (for torque below 3900 RPM) and short runners (for power at high RPM). 3. Timing and Valvetrain Components Mercedes Benz M272 Engine Parts Diagram

• Cylinder Block (Part # 272 010 02 20) – Contains the crankcase, cooling jackets, and mounting bosses.
• Crankshaft (Part # 272 030 01 03) – Forged steel, with six counterweights and eight balance weights. It is supported by four main bearings.
• Connecting Rods – Powder-forged steel, fracture-split at the big end. Each rod is matched to a specific cylinder.
• Pistons – Cast aluminum with two compression rings and one oil control ring. The diagram shows piston orientation markings (arrow pointing to the timing chain side).
• Main Bearings & Thrust Washers – Color-coded (red, yellow, blue) based on size; the parts diagram helps identify which bearing color your block uses.

Critical Timing Components:

Crankcase Ventilation

: A common area for maintenance, this system includes an oil separator and a positive crankcase ventilation (PCV) valve to manage internal engine pressure. M272 The Mercedes-Benz is a naturally aspirated 90°

Group 01:

When looking for official Mercedes Star Diagnostic (SDS) or EPC (Electronic Parts Catalog) diagrams, use these specific sub-group terms: Engine Housing (Crankcase and Cylinder Heads) Group 05: Valvetrain (Camshafts and Timing Chain) Group 14: Intake Manifold and Air Ducts Engine block Cylinder liners Piston rings Connecting rods