Mercedes W203 W210 W220 Oil Separator Breather Valve A6110160334

The Mercedes W203 W210 W220 Oil Separator Valve is a crankcase ventilation system component designed for Mercedes engines, responsible for the controlled separation of oil mist from crankcase gases. Thanks to its precise design within the Hoses, tubes, and pipes group, it supports stable engine operation and limits oil ingress into the intake system. This is a practical service solution for owners of W203, W210, and W220 models looking to maintain their engine in optimal operational condition.

Specifications and technical data

• SKU: A6110160334
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6110160334
• Substitutable numbers: A6110160334, A 611 016 03 34
• Category: Hoses, Lines & Pipes

Function and Role of the Oil Separator Valve

The oil separator valve in the crankcase ventilation system is responsible for separating blow-by gases and oil particles, which helps to reduce carbon deposit buildup in the intake manifold and on air control elements. A properly functioning component of this type contributes to:

• more stable crankcase pressure,
• smoother engine idle operation,
• reduced oil consumption due to oil being drawn into the intake,
• cleaner intake passages and fewer contaminants in the system.

In Mercedes C-Class, E-Class, and S-Class vehicles of the W203, W210, and W220 generations, a functional separator is a crucial element in preventing costly engine repairs.

System Affiliation – Hoses, tubes, and pipes

The presented valve belongs to the Hoses, tubes, and pipes group, which comprises components responsible for transporting and controlling the flow of working fluids within the engine. In practice, this means it works in conjunction with crankcase ventilation hoses and breather elements, forming a cohesive system for venting gases from the crankcase.

Properly matching the valve to a specific Mercedes engine configuration ensures the integrity of connections, correct flow direction, and appropriate operating conditions for other components in this part of the system.

Selection and Compatibility with Mercedes Models

The Mercedes W203 W210 W220 Oil Separator Valve is designed as an original Mercedes part, ensuring compatibility with factory design solutions. This provides the user with a part that matches the mounting points, connection diameters, and flow characteristics intended by the vehicle manufacturer.

Before installation, it is advisable to verify compatibility with the specific engine version and compare the shape and connection points with the currently installed component to ensure a seamless replacement and avoid crankcase ventilation system leaks.

Condition, Origin, and Service Application

The offered valve is a used part, allowing for an economical restoration of the crankcase ventilation system's functionality in Mercedes C-Class, E-Class, and S-Class vehicles. This type of part is particularly useful for:

• symptoms of increased oil consumption due to oil being drawn into the intake,
• excessive exhaust smoke under load,
• problems with smooth engine idling caused by improper ventilation,
• preventive maintenance of the crankcase ventilation system during major engine servicing.

Using an original component from the same design group helps maintain near-factory operating parameters and reduces the risk of system malfunction.

Expanding Service for Crankcase Ventilation and Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and require other components from the same group, such as crankcase ventilation hoses, flexible vacuum hoses, or pipes for delivering working fluids, check the available parts in the Mercedes Hoses, tubes, and pipes category.

For users interested in a broader approach to servicing electronics and control systems in modern vehicles, practical tips on working with modules and used parts can be found in the article: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models.