2720181382 BEMWQ Engine Breather Hose for Mercedes Benz W204 V212 W211 M272

Product Introduction

This is the BEMWQ Engine Breather Hose (Part Number: 2720181382 / A2720181382), a crucial component of the Positive Crankcase Ventilation (PCV) system. It is designed for Mercedes-Benz vehicles equipped with the M272 engine, typically routing crankcase blow-by gases and oil vapors from the oil separator or valve cover to the intake manifold for re-combustion. This process effectively regulates internal crankcase pressure, reduces harmful emissions, and prevents the buildup of oil sludge within the engine.

Product Features

• Precision Fitment:​ Specifically engineered for Mercedes-Benz chassis models including C-Class (W204), E-Class (W211/V212), and other M272-equipped vehicles, ensuring a direct OEM-standard fit without modification.
• Durable & Oil-Resistant Construction:​ Manufactured from high-quality, reinforced rubber or specialized polymers designed to withstand harsh engine bay temperatures, constant exposure to hot oil vapors, and thermal cycling without becoming brittle, cracking, or collapsing.
• OE Specifications:​ Built to match original equipment standards in terms of inner diameter, length, bend configuration, and connector interface for seamless integration into the existing ventilation system, ensuring proper airflow and pressure balance.

Product Selling Points

• Prevents Oil Leaks & Pressure Buildup:​ Replacing a cracked, hardened, or clogged hose helps relieve excessive crankcase pressure, which is a common cause of blown oil seals (such as the rear main seal or valve cover gasket) and external oil leaks.
• Restores Engine Performance & Efficiency:​ Ensures proper crankcase breathing and vacuum control, which helps eliminate rough idling, reduce abnormal oil consumption (burning oil), and prevent check engine lights related to lean fuel mixture codes (e.g., P0171, P0174) or MAF sensor errors.
• Simple & Accurate Replacement:​ Matches the original routing and connection points exactly, allowing for a straightforward, hassle-free installation for both professional mechanics and DIY enthusiasts performing engine breathing system maintenance.