Vent Pipe Mercedes W204 W212 M156 Cylinder Head Breather Line Hose A1560100370

Vent Pipe Mercedes W204 W212 M156 Cylinder Head Breather Line Hose is an original crankcase ventilation system component designed for M156 series petrol engines. It ensures stable discharge of oil vapors and gases from the engine, which promotes smooth engine operation and reduces the risk of intake contamination. This is a practical service solution for C-Class and E-Class model owners who prioritize proven Mercedes components.

Specifications and technical data

• SKU: A1560100370
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1560100370
• Substitutable numbers: A1560100370, A 156 010 03 70
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function of the breather hose

The engine breather hose in the ventilation system is responsible for the controlled discharge of gases from the crankcase into the intake system. In the M156 petrol engine, this is particularly important for maintaining stable internal pressure, limiting leaks, and reducing deposits in the intake manifold. A properly selected hose from the Lines, hoses, and pipes category supports smooth engine operation, facilitates starting, and helps maintain correct combustion parameters.

Benefits of using an original Mercedes component

Using a breather hose from the Mercedes range allows you to maintain the factory routing geometry, correct internal diameter, and appropriate material flexibility. Thanks to this:

• the risk of leaks in the engine ventilation system is reduced,
• proper oil vapor circulation is maintained,
• the phenomenon of engine "sweating" around the valve cover and connection ports is limited,
• the engine operates under more consistent conditions, which promotes idle stability.

An element from this group is particularly important in high-power petrol engines, where the breather system operates under higher thermal and pressure loads.

Product characteristics and service application

The breather hose in the presented configuration is designed for petrol-powered engines, which is important when selecting a material resistant to the specific mixture of fuel and oil vapors. As an element from the Lines, hoses, and pipes category, it acts as a connector between the breather system ports, ensuring a tight and stable connection without the need for additional modifications. The used product is a reasonable solution for users who want to restore the proper operation of the ventilation system while maintaining a favorable cost-to-service-effect ratio.

Selection and compatibility in the engine system

When selecting a breather hose for a Mercedes C-Class W204 or E-Class W212 with an M156 unit, it is crucial to match it to the specific petrol engine version and accessory layout. The original component has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. This allows for precise selection of the hose for the existing system, without the need for modifications or the use of universal replacements.

Application area and system expansion

The engine breather hose operates in the engine bay area, in the immediate vicinity of the power unit and intake components. Replacing this component is often performed together with other lines and hoses to restore the tightness of the entire system in one service operation. 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 vacuum lines, cooling hoses, or fuel system pipes, check the available parts in the Mercedes lines, hoses, and pipes category.

Used parts and repair cost-effectiveness

Choosing a used breather hose is often economically justified, especially when servicing older Mercedes vehicles, where the priority is to restore efficiency at controlled costs. In many cases, components of this type retain full functionality, and their reuse allows for reduced expenses without sacrificing the manufacturer's original specifications. If you are interested in the broader context of using second-hand automotive components and want to learn practical tips on selection and installation, it is worth reading the article Volkswagen – solidity and reliability. Why are used VW parts a reasonable choice?, which discusses the general principles of using parts from the secondary market.