Mercedes S205 OM626 Water Pump Coupling Connector Valve Tube A6222000056

The Mercedes S205 OM626 Water Pump Valve Flange is a precise cooling system component designed for Mercedes vehicles with the OM626 engine. It ensures a stable connection between the valve and the water pump, promoting proper coolant circulation and maintaining optimal engine operating temperature. This used component from the Cooling System Hoses and Pipes category offers a functional service solution for discerning users seeking reliable parts.

Specifications and technical data

• SKU: A6222000056
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6222000056
• Substitutable numbers: A6222000056, A 622 200 00 56
• Part type: Hose
• Category: Coolant Hoses

Function of the Water Pump Valve Flange in the Cooling System

In the OM626 engine, the water pump valve flange acts as a connector in the coolant circuit, ensuring a leak-proof and stable flow of fluid between system components. A correctly selected and installed flange:

• reduces the risk of leaks around the water pump and control valve,
• supports uniform coolant flow throughout the system,
• helps maintain stable engine operating temperature,
• lessens the load on other cooling system components.

Thanks to its precise geometry and compatibility with the OM626 design, the flange interacts predictably and consistently with the water pump and valve, which is crucial for both daily operation and under higher thermal loads.

Benefits of Using an Original Mercedes Part

Choosing a water pump valve flange specifically designed for Mercedes vehicles with the OM626 engine helps maintain the cooling system's original operating characteristics. An original Mercedes component offers:

• a guaranteed fit for cooling system ports and pipes,
• compatibility with the factory valve and water pump,
• preservation of the flow channel dimensions as intended by the manufacturer,
• reduced risk of installation and subsequent operational issues.

A used part from this category is an attractive alternative to new parts, especially for routine maintenance where a sensible balance between cost and functionality is desired. Maintaining the original flange design contributes to the stable operation of the entire cooling system without requiring modifications to the installation.

Application in the OM626 Cooling System

The Mercedes S205 OM626 Water Pump Valve Flange is designed for use in the cooling circuit of the OM626 diesel engine, found in the S205 body style. This component forms part of the fluid flow path between the water pump and the control valve, influencing:

• the time it takes for the engine to reach operating temperature,
• temperature stability under various load conditions,
• the efficiency of heat dissipation from the engine.

The proper condition of the flange is particularly important in vehicles operated in diverse temperature conditions, where the cooling system experiences significant load variations. Replacing a worn or damaged flange with a functional one restores proper sealing and flow in a critical point of the system.

Condition and Installation Aspects

The offered flange is a used cooling system component. Before installation, a standard inspection for leaks, the condition of sealing surfaces, and compatibility with the existing configuration of pipes and valve in the specific vehicle is recommended. In practice, installation involves:

• removing the old flange from the vicinity of the water pump and valve,
• inspecting the mating surfaces and seats,
• installing the component with the correct tightening torque and sealing arrangement,
• bleeding the cooling system after completion of the work.

This procedure ensures the restoration of correct coolant flow conditions, leading to stable engine operation and a reduced risk of overheating.

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 flanges, connectors, or flexible hose sections, check the available parts in the Mercedes Cooling System Hoses and Pipes category.

Technical Support and Cooling System Operation

When working on the water pump valve flange, it is advisable to consider the overall condition of the cooling system – including hoses, radiator, fans, and control elements. High ambient temperatures and intensive use can reveal weak points in the system, so it is good practice to plan maintenance activities holistically.

To better understand the impact of temperature on cooling system operation and the potential savings from using used components, consult the guide Summer Heat vs. Cooling System: Used Radiators and Fans for Guaranteed Savings, which provides practical tips on operation and part selection.