Mercedes W166 W204 W212 Vent Pipe Engine Crankcase Breather Hose A2760181300

Mercedes W166 W204 W212 Vent Pipe Engine Crankcase Breather Hose is an original component from the Lines, hoses and pipes group, designed for vacuum systems in selected Mercedes W166, W204, and W212 models. This used OEM part ensures factory-spec fitment, stable system operating parameters, and predictable performance under load.

Specifications and technical data

• SKU: A2760181300
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2760181300
• Substitutable numbers: A2760181300, A 276 018 13 00
• Category: Hoses, Lines & Pipes

Purpose and function of the vacuum pipe

The Mercedes W166 W204 W212 Vent Pipe Engine Crankcase Breather Hose is responsible for the safe routing of vacuum between engine auxiliary components, such as actuators, control valves, or adjustment modules. A properly functioning pipe limits pressure drops, which translates into stable engine operation, correct response to load, and proper functioning of control systems.

The original design of the pipe from the Mercedes range has been engineered for:

• maintaining vacuum system tightness under typical operating conditions,
• resistance to temperatures in the engine compartment,
• compatibility with factory routing and mounting points in the W166, W204, and W212 body styles.

Benefits of using an original Mercedes pipe

Using an original pipe from the Lines, hoses and pipes group allows you to maintain system operating parameters in accordance with the manufacturer's specifications. In practice, this means:

• consistency with factory engine control characteristics,
• reduced risk of leaks compared to generic replacements,
• easier diagnostics – the system behaves in accordance with Mercedes service documentation.

For workshops and users, this means more predictable installation and a lower risk of needing to re-intervene in the vacuum system after repair.

Installation and operational characteristics

The pipe has been designed as a component tailored to the specific engine bay architecture of the W166, W204, and W212 models. Thanks to this:

• pipe routing is consistent with factory paths,
• mounting points and length are adapted to the original brackets,
• the risk of chafing and stress resulting from improper positioning is minimized.

A used OEM part is a solution that allows for maintaining the factory geometry of the system, which is important for both the durability of the pipe and the safety of the entire vacuum system.

Application in diagnostics and vacuum system repairs

In the event of symptoms such as unstable operation of vacuum-controlled accessories, delayed response of actuators, or errors related to regulation, replacing the vacuum pipe with an original Mercedes component is one of the fundamental service steps. This allows you to:

• eliminate leaks resulting from material aging,
• restore proper flow and vacuum levels,
• narrow down further diagnostics to other system components if the problem persists.

System expansion – other 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 fluid lines, intake hoses, or auxiliary pipes, check out the available parts in the Mercedes lines, hoses and pipes category.

Why choose original used components?

For components such as vacuum pipes, an original used part often provides better repeatability of parameters than low-quality replacements. A design consistent with the manufacturer's documentation, proper material selection, and fitment to the specific vehicle platform reduce the risk of operational problems after repair. If you want to learn more about the arguments for choosing original used components instead of regeneration, it is worth reading the article Manual transmission failures in cars – why is an original used part a more sensible choice than regeneration?.