Early models (2004–2008) were notorious for defective balance shaft gears that would wear down, causing timing issues and check engine lights. Intake Manifold Flaps:
| Engine Displacement | Model Code | Bore x Stroke (mm) | Power Output | Torque Output | Notable Applications | | :--- | :--- | :--- | :--- | :--- | :--- | | | M272 E25 | 88 x 68.4 | 150 kW (204 PS) | 245 Nm | C230, E230, SLK 230 | | 3.0 L | M272 E30 | 88 x 82.1 | 170 kW (231 PS) | 300 Nm | C280, E280, SLK 280 | | 3.5 L (Port) | M272 E35 | 92.9 x 86.0 | 200 kW (272 PS) | 350 Nm | E350, C350, ML350 | | 3.5 L (CGI) | M272 E35 DE | 92.9 x 86.0 | 215 kW (292 PS) | 365 Nm | CLS 350 CGI, E 350 CGI |
: An electronically controlled 3-plate thermostat that regulates temperature based on engine load Lower Engine Components Aluminum Crankcase
: Uses a chain-driven oil pump and a reed contact oil level switch (S43) mounted in the oil pan. Ignition & Sensors Individual coil-on-plug ignition. Mercedes Benz M272 Engine Parts Diagram
Located at the front-left of the engine. The gaskets behind this housing are notorious for causing massive oil leaks.
To ensure you order the exact replacement components from an official parts diagram, follow these industry-standard catalog steps:
: A central component located between the cylinder banks to counteract vibrations inherent in the 90-degree V6 design. Located at the front-left of the engine
If you are currently troubleshooting or sourcing components, let me know your engine is experiencing. I can also help you look up the exact part names or common replacement kits for your specific vehicle model. Share public link
: Individual coil-on-plug units located directly above the spark plugs Camshaft Adjusters & Solenoids
A notorious plastic arm on the front of the manifold that frequently breaks (aluminum aftermarket upgrades are popular). If you are currently troubleshooting or sourcing components,
Measures incoming air volume to calculate the correct fuel mixture. 5. Ignition and Electrical Components
With these details, I can provide the exact or targeted repair steps. Share public link
Not all diagrams are created equal. For the M272, avoid generic clip-art images. You need a diagram or a high-quality aftermarket equivalent (e.g., from Pelican Parts, FCP Euro, or Mercedes-Benz of South Atlanta).
The M272 comes in 2.5L (M272 E25), 3.0L (M272 E30), and 3.5L (M272 E35) variants. Ensure your catalog specifies your exact displacement.