Jàng WolofJàng WolofOn early production M272 engines (up to engine serial number ), the teeth on the balance shaft sprocket were made of an inferior steel alloy. Over time, the timing chain completely wore down these teeth, causing the engine to go out of time.
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)
Looking at a top-down view of the M272 parts diagram, the most prominent features are the two aluminum cylinder heads (Left and Right banks). The M272 uses a 4-valve-per-cylinder configuration—24 valves total.
Located inside the oil pan, driven by a dedicated chain from the crankshaft. Common M272 Diagram Failure Points to Watch Mercedes Benz M272 Engine Parts Diagram
The M272 uses a Dual Overhead Cam (DOHC) setup with four valves per cylinder. Camshaft Adjusters (VVT Gears)
When sourcing parts using an official Mercedes-Benz Electronic Parts Catalog (EPC) or aftermarket diagram, keep these rules in mind:
On a genuine Mercedes diagram, every part has a and an Index Number (e.g., #130) . The index number corresponds to a table listing the part name and quantity. Cross-reference the index number, not just the picture. On early production M272 engines (up to engine
Early production engines (up to engine serial number 2729..30 468993) used a soft metal alloy for this gear. The teeth wear down flat, causing the engine to go out of time and throw Check Engine codes P1200 and P1208. 5. Cooling & Lubrication Systems
The magnesium intake manifold is one of the most complex external components, designed to optimize torque across the RPM range.
Runs through the center of the "V" block, driven directly by the timing chain to counteract first-order inertial forces. Brittle gaskets cause common oil leaks into the
Mercedes-Benz made mid-generation updates to the M272 (such as fixing the balance shaft issue and changing thermostat designs). Your Vehicle Identification Number is required to find the exact part number.
If you are undertaking major engine repairs (like a timing chain or balance shaft replacement), official WIS repair manuals provide the exact torque specifications, silicone sealant paths, and timing mark alignments.