Renault Trafic II Opel Vivaro A 2.0 DCI Oil Separator Crankcase Breather

Renault Trafic II Opel Vivaro A 2.0 DCI Oil Separator Crankcase Breather is a specialized component of the crankcase ventilation system in diesel engines, designed to ensure stable operation of the power unit. It is responsible for the controlled separation of oil mist from gases before they return to the intake, which promotes cleaner engine operation and reduces contamination of auxiliary components. Thanks to its design, which complies with the manufacturer's standards, it provides a functional service solution for users of vehicles with a 2.0 DCI engine.

Specifications and technical data

• SKU: 8200673395
• Mark: Renault
• Condition: Used
• OEM Part Number: 8200673395
• Substitutable numbers: 8200673395, 8200 673 395
• Fuel type: Diesel
• Category: Other Engine Parts

Function of the oil separator (breather) in a diesel engine

The oil separator in the breather system of a Diesel engine is responsible for separating blow-by gases and oil particles that are generated during the operation of the power unit. A properly functioning component:

• limits the amount of oil entering the intake system,
• stabilizes pressure in the crankcase,
• reduces the risk of excessive carbon deposit buildup in the manifold and on the valves,
• supports smooth engine operation across the full load range.

For 2.0 DCI units, the use of an efficient oil separator has operational significance – it helps maintain proper performance parameters, which translates into engine refinement and predictable vehicle behavior in daily use.

Application in Renault Trafic II and Opel Vivaro A

The presented Renault Trafic II Opel Vivaro A 2.0 DCI Oil Separator Crankcase Breather is intended for installation in Renault Trafic II and Opel Vivaro A vehicles with a diesel engine. The design, tailored to the specific application, facilitates installation in the factory location without the need for system modifications.

In practice, this means:

• maintaining the original geometry of the breather hose routing,
• correct positioning relative to the valve cover and auxiliary components,
• compatibility with factory brackets and mounts.

As a result, the part can be used both for standard service replacements and for repairs related to excessive oil consumption or problems with engine ventilation.

Technical and operational characteristics

The oil separator in the breather system operates under demanding conditions – in direct contact with hot gases and oil mist. Using a component that complies with the manufacturer's solution allows for maintaining:

• adequate separation efficiency in the typical engine RPM range,
• the correct direction of gas flow in the ventilation system,
• stable operating conditions for engine seals, reducing the risk of leaks resulting from incorrect crankcase pressure.

The product comes from the Renault group, which for many users means predictable fitment to the factory vehicle configuration and consistency with other system components.

Component condition and service application

The offered oil separator (breather) is a used item, which makes it an economical solution while maintaining the functionality required for daily operation. It can be used as a replacement part in situations where the existing component shows signs of wear, such as excessive oiling of intake hoses or unstable pressure in the ventilation system.

Before installation, it is recommended to perform a standard verification of the breather system and the condition of hoses and connectors to ensure tightness and proper gas flow after replacement. A properly selected and installed oil separator supports maintaining the balance between engine efficiency and its durability over the long term.

System expansion and selection of additional components

If you are planning a comprehensive repair or upgrade of the engine area in your Renault and need other components from the same group, such as additional breather hoses, mounts, or accompanying accessories, check the available parts in the Other Renault category.

For drivers interested in comparing the characteristics of different power units and the impact of engine accessories on performance and durability, material comparing solutions used in sports and standard versions of vehicles may be helpful – more information can be found in the article Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering broader vehicle modifications using aftermarket components, including engine system parts, it is worth familiarizing yourself with practical tips on the safe selection of used components – a detailed discussion can be found in the guide Tuning with used parts – how to gain performance without spending a fortune.