Mercedes W176 Engine Breather Vacuum Pump Purge Line Hose Tube Pipe A2700180012

Mercedes W176 Engine Breather Vacuum Pump Purge Line Hose Tube Pipe is a component from the Lines, hoses and pipes group, designed for the vacuum system in Mercedes vehicles. It ensures airtight vapor discharge and stable venting of the vacuum pump, which translates into predictable operation of vacuum-dependent systems, such as engine management or brake assistance.

Specifications and technical data

• SKU: A2700180012
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2700180012
• Substitutable numbers: A2700180012, A 270 018 00 12
• Category: Hoses, Lines & Pipes

Purpose and technical function

The offered breather hose is designed specifically for the W176 body, ensuring the correct routing geometry in the engine compartment. Its task is to provide controlled discharge of gases from the vacuum pump and maintain stable flow in the vacuum system, without unwanted pressure drops or leaks.

The precisely selected inner diameter and shape of the hose allow for:

• maintaining the appropriate vacuum level in the system,
• reducing the risk of vacuum pump operation disturbances,
• maintaining proper compatibility with factory connectors and ports.

Construction and fitment for Mercedes W176

The hose belongs to the group of spatially formed components, which facilitates its routing in the tight space of the engine compartment and minimizes stress during engine operation. The shape and mounting points are adapted to the factory assembly system in the W176, which promotes quick service and reduces the risk of incorrect routing.

By maintaining the original design concept, the hose works with factory brackets and clamps, and its installation does not require modification of other components. This is a beneficial solution for both workshops and users servicing the car themselves.

Benefits of using an original hose

Using a vacuum pump breather hose dedicated to the W176 allows maintaining vacuum system operating parameters at the level intended by the manufacturer. In practice, this means:

• more stable engine operation in terms of vacuum control,
• reduced risk of errors related to system leaks,
• easier diagnostics – the system retains its factory configuration.

For vehicles used intensively, replacing a worn or brittle hose with a functional component from the same design group is an important step towards maintaining predictable operation of the braking system and engine management.

Condition, verification and service application

The item comes from dismantling and is intended for re-installation in Mercedes W176 vehicles where it is necessary to replace the vacuum pump breather hose due to leaks, cracks, or material wear. This type of part is particularly useful for vacuum system repairs where compliance of shape and length with the factory solution is required.

Choosing an original hose from the Lines, hoses and pipes group allows maintaining system consistency and reducing the time needed to fit universal replacements, which often require additional modifications.

Repair scope expansion and additional information

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, breather hoses, or supply pipes, check the available parts in the Mercedes Lines, hoses and pipes category.

When planning broader service work, it is also worth checking out the guide material on the economical use of parts from dismantling – you will find practical tips in the article on reducing repair costs using original used parts, which shows how to consciously select components while maintaining vehicle safety and functionality.