Mercedes Benz M272 Engine Parts Diagram Jun 2026

Seal the top of the cylinder head. Brittle gaskets cause common oil leaks into the spark plug wells. 2. Intake Manifold Assembly (The "Swirl Flap" System)

Four Hall-effect camshaft position sensors and one crankshaft Hall sensor.

Individual electronic transformers bolted directly above each spark plug on the valve covers.

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The M272 is a masterpiece of early 2000s engineering that delivered impressive power—up to 268 hp in its 3.5L variant—but its complexity necessitates a proactive approach to maintenance. For anyone performing repairs, technical manuals like the Mercedes Engine M272 Manual Model 212 Engine Guides

The central rotating assembly.

Aluminum pistons with low-friction coatings attached to fractured-cap steel connecting rods.

The M272 is a 90-degree V6 engine with DOHC and 4 valves per cylinder. Key areas often detailed in parts diagrams include:

: Individual coil-on-plug units located directly above the spark plugs Camshaft Adjusters & Solenoids Intake Manifold Assembly (The "Swirl Flap" System) Four

Multi-layer steel gaskets sealing the head to the block. 2. Engine Block and Crankcase (Bottom End)

Aluminum covers sealing the valvetrain, frequently requiring new gaskets and spark plug tube seals. 3. Timing Chain & Drive System

This is the most critical subsystem to study on an M272 parts diagram, especially for models built between 2004 and 2008.

The foundation of the M272 engine is a 90-degree aluminum cylinder block with silitec (silicon-aluminum) liners. Because of the 90-degree configuration (atypical for a V6), a balance shaft is required to eliminate first-order vibrations.