Mercedes M270 Engine Intake Camshaft & Exghust Camshaft Common issues with the Mercedes M270 intake camshaft include camshaft adjuster failure, which causes a rattling noise, and wear on the camshaft or timing components, leading to timing chain issues and potential engine timing problems. Other related problems are a shifting pulse wheel on the camshaft, which throws timing codes and causes long cranking, and potential oil-related issues that contribute to premature wear. Repair & Maintence Wor