Mercedes W216 W221 M275 Engine Expansion Tank Breather Pipe Hose A2215010125

Mercedes W216 W221 M275 Engine Expansion Tank Breather Pipe Hose is an original cooling system component from the Lines, hoses and pipes group, designed to operate in the demanding environment of the engine bay. This used OEM part ensures factory-fit for the M275 unit, which facilitates installation and helps maintain the correct operating parameters of the cooling system.

Specifications and technical data

• SKU: A2215010125
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2215010125
• Substitutable numbers: A2215010125, A 221 501 01 25
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The offered breather pipe operates between the expansion tank and other components of the M275 engine cooling system in Mercedes luxury class models W216 and W221. Its task is to stably discharge air and vapors from the system, which helps maintain proper pressure and correct coolant circulation.

Thanks to its factory geometry and internal diameter, the pipe maintains adequate flow, thereby supporting uniform cooling of the power unit and reducing the risk of local overheating and engine malfunctions.

Construction and fitment for Mercedes W216/W221

The pipe has been designed specifically for the M275 engine cooling system, taking into account the routing in the engine bay of W216 and W221 models. The properly shaped path of the pipe facilitates its placement in factory brackets and mounts, which minimizes stress and the risk of abrasion during operation.

The original design ensures compatibility with standard expansion tank connectors and other system elements, which translates into tight connections and stable operation over a long period of use.

Benefits of using an original pipe

• Factory fitment for the M275 engine cooling system in Mercedes W216/W221.
• Stable venting of the expansion tank, promoting proper system operation.
• Pipe geometry adapted for routing in the engine bay, with reduced risk of abrasion.
• Original part from the Lines, hoses and pipes category, designed for a specific application.
• A reasonable choice for users looking for a used, proven OEM component.

Condition, service application and choosing a used part

The item is offered as a used part, which is an attractive service solution for Mercedes W216 and W221 owners who want to maintain the original cooling system specification while optimizing repair costs. This type of pipe is suitable both for replacing a damaged component and for preventive cooling system maintenance when there is a suspicion of leaks or wear of the existing pipe.

If you want to better understand how to consciously choose components from the secondary market and what to look for when buying, the following guide will be helpful: Used parts – Your guide to the best offers in the automotive store.

Expanding the cooling system in Mercedes – lines, hoses and pipes

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 flexible coolant hoses, rigid medium-carrying pipes, or additional breather sections, check out the available parts in the Mercedes lines, hoses and pipes category.