Mercedes W204 M272 Crankcase Breather Hose Engine Pipe Line Petrol A2720181382

Description

Mercedes W204 M272 Crankcase Breather Hose Engine Pipe Line Petrol is an original crankcase ventilation component responsible for the controlled discharge of oil vapors from the timing chain chamber in M272 petrol engines. Thanks to its precise geometry and perfect fit for the power unit, it ensures stable timing operation conditions and supports proper crankcase ventilation. This solution helps maintain smooth engine performance and reduces the risk of unwanted leaks or intake contamination.

Specifications and technical data

• SKU: A2720181382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720181382
• Substitutable numbers: A2720181382, A 272 018 13 82
• Fuel type: Petrol
• Category: Crankshafts

Purpose and technical function

The timing chain breather hose in the M272 petrol engine is responsible for the directional discharge of oil vapors and gases from the timing area into the intake system or crankcase ventilation. A properly selected component:

• stabilizes pressure in the timing chamber and crankcase,
• limits oil ingress into the intake,
• supports smooth engine operation under various loads,
• reduces the risk of deposit formation in the intake duct.

For M272 petrol engines, using the correct ventilation hose is essential for maintaining proper engine performance, correct vacuum values, and long-term system tightness.

Compatibility with Mercedes W204 and the M272 engine

Mercedes W204 M272 Crankcase Breather Hose Engine Pipe Line Petrol has been designed for the specific architecture of the power unit, which translates into proper routing of the hose in the engine bay and a secure connection with other system components. The appropriate fit of the shape and diameter of the connectors allows for avoiding stress, leaks, and improper positioning near moving engine accessories.

Proper selection of the hose is particularly important when experiencing symptoms such as unstable idle speed, increased oil consumption, or errors related to the crankcase ventilation system. Using a component consistent with the M272 design helps restore proper operating parameters of the crankcase ventilation system.

Characteristics of the used component

The offered hose comes from dismantling and is a used part, which is a cost-effective solution for users looking for original components at a reasonable price. In the case of this type of part, it is crucial to maintain:

• tightness along the entire length of the hose,
• absence of cracks and excessive deformation,
• stable connections at the attachment ends.

A used timing chain breather hose allows for maintaining the factory geometry of the system, which is particularly important in engines with compact construction, such as the M272 in the W204 body.

The importance of proper ventilation in a petrol engine

In petrol units such as the M272, an efficient timing and crankcase ventilation system affects several key operational areas:

• maintaining a stable fuel-air mixture composition,
• limiting blow-by and excessive exhaust smoke,
• reducing the risk of oil contamination of the throttle and intake manifold,
• more predictable engine behavior during load changes.

An efficient timing chain breather hose supports trouble-free operation of the petrol engine, which is important both in daily city driving and on longer trips.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as a crankshaft, crankshaft mounting elements, or related components of the crank-piston system, check the available parts in the Mercedes crankshafts category.

Additional support when choosing a used part

When selecting parts from dismantling, it is worth considering both technical and economic aspects, especially in the case of components operating in demanding temperature and pressure conditions. If you are wondering whether regeneration or purchasing an original used part is a better solution in your situation, the article describing the differences between these approaches may be helpful – check the guide on choosing between a refurbished and a used part.