Renault Clio II Megane II Laguna III 1.5 dCi Engine Breather Vent Hose118297586R

Renault Clio II Megane II Laguna III 1.5 dCi Engine Breather Vent Hose is a component from the Lines, hoses and pipes group, responsible for the proper discharge of vapors from the crankcase ventilation system in the 1.5 dCi diesel engine. A properly selected hose ensures stable operation of the power unit, reduces the risk of oil leaks, and helps maintain the correct operating parameters of the intake system.

Specifications and technical data

• SKU: 118297586R
• Mark: Renault
• Condition: Used
• OEM Part Number: 118297586R
• Category: Hoses, Lines & Pipes

Purpose and function of the breather hose

The presented breather hose is designed for use in popular Renault models with the 1.5 dCi engine, such as the Clio II, Megane II, and Laguna III. Its task is to direct oil vapors from the crankcase to the intake system, which helps maintain proper engine pressure and reduces oil contamination in the engine bay.

A well-selected breather hose:

• prevents vapors and oil from escaping outside the power unit,
• reduces the risk of unstable idle speed,
• helps keep the area around engine accessories clean,
• reduces the likelihood of leaks in the intake system.

Construction and fitment in the engine system

The breather hose belongs to the group of flexible components that must be properly shaped and fitted to a specific engine system. The correct geometry of the hose facilitates installation in the engine bay and ensures proper routing between the connectors, without excessive tension or kinks.

Thanks to the design intended for the 1.5 dCi unit in the Renault Clio II, Megane II, and Laguna III, the hose works with the factory mounting system and connectors, which promotes stable seating in the installation. Such fitment helps reduce vibrations, thereby decreasing the risk of cracks and leaks during operation.

Benefits of using the original hose

Choosing a component from the Lines, hoses and pipes group dedicated to a specific power unit allows for maintaining performance parameters close to factory specifications. The appropriate inner and outer diameter, as well as the correct shape of the hose, influence the proper flow of vapors and the tightness of connections with other system elements.

The main advantages of using the correct breather hose in a 1.5 dCi engine include:

• stable operation of the breather system under various engine loads,
• reduced risk of contaminating accessories with oil and deposits,
• easier diagnostics of potential leaks in the intake system,
• maintaining a clear functional division between individual hoses in the engine bay.

Component condition and service application

The offered breather hose is a used part, making it an attractive service solution for users looking for parts with a favorable price-to-functionality ratio. This type of component is suitable both for routine maintenance repairs and for replacing a damaged hose as a preventive measure when signs of leaks or cracks appear on the existing hose.

Replacing the breather hose is recommended in situations where the following are noticeable:

• traces of oil in the vicinity of the ventilation hoses,
• cracks or dry rot of the rubber,
• problems with smooth engine operation at idle,
• increased exhaust smoke under load.

Complementary items from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your Renault and need other elements from the same group, such as vacuum lines, cooling system hoses, or vent pipes, check the available parts in the Renault lines, hoses and pipes category.

Technical support and service knowledge

When working on the engine system, suspension, or other key components, it is worth relying on proven service procedures and reliable technical knowledge. For users interested in a broader context of vehicle operation and the impact of individual components on safety and driving comfort, the following article may be helpful: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.