Mercedes C118 Water Coolant Flange Pipe Hose Line A6542037100

Mercedes C118 Water Coolant Flange Pipe Hose Line is an original cooling system component designed for the precise routing of coolant within the engine. Thanks to its factory-fit for Mercedes C118 series models, it ensures a stable connection between cooling system components and supports the maintenance of the engine's proper operating temperature. This solution is particularly beneficial for workshops and users who expect a proven, structurally refined part.

Specifications and technical data

• SKU: A6542037100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6542037100
• Substitutable numbers: A6542037100, A 654 203 71 00
• Category: Coolant Hoses

Function and role in the cooling system

The Water Coolant Flange Pipe Hose Line is responsible for the leak-proof and stable routing of coolant between system components, such as the engine block, radiator, or other hoses. The proper shaping of the flow channels limits the risk of localized overheating, supports uniform temperature distribution, and helps maintain optimal engine operating conditions across various load ranges.

A properly selected flange minimizes hose stress, reduces the possibility of abrasion and leaks, and facilitates the servicing of the entire system. In modern designs, such as the Mercedes C118, this has a direct impact on the durability of other cooling components.

Compatibility and part identification

The presented flange is an element from the Mercedes Cooling System Hoses and Pipes group, designed specifically for Mercedes vehicles. Original manufacturer markings and assignment to a specific reference allow for unambiguous identification of the part in service catalogs and VIN-based selection systems. This allows the workshop or user to easily verify compatibility with a specific engine configuration and avoid installation issues.

In practice, this means that the water coolant flange pipe is prepared to work with factory mounting points and connection diameters, which translates into secure seating and the correct geometry of the entire cooling system section.

Condition, functional advantages, and service application

The item is offered in used condition, which provides a cost-effective solution while maintaining the original build quality characteristic of the Mercedes brand. For many service applications – especially during routine repairs or restoring vehicle functionality after a failure – such a choice allows for a significant reduction in the cost of the entire operation, while maintaining the proper geometry and fit of the part.

The main advantages of this water flange for workshop applications include:

• factory fit for the cooling system in the C118 body,
• stable coolant routing and reduced risk of leaks,
• easier installation thanks to the retention of original mounting points,
• attractive cost-to-functionality ratio compared to new aftermarket replacements.

Mercedes Cooling System Hoses and Pipes – expansion and modernization

If you are planning a comprehensive repair or modernization of the cooling system area in your Mercedes and need other elements from the same group, such as flexible hoses, rigid pipe sections, or additional connection flanges, check the available parts in the Mercedes Cooling System Hoses and Pipes category.

Technical support and knowledge about the cooling system

To better understand how a properly selected water flange affects the operation of the entire system, it is worth learning about the impact of ambient temperature on the load of cooling components. Practical tips regarding operation and component selection can be found in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses, among other things, the importance of efficient coolant flow.

If you want to organize the process of purchasing used components – from verifying markings to selecting for a specific model – the practical guide Safe purchase of used car parts online – a step-by-step guide will also be helpful, describing step-by-step how to consciously choose elements such as cooling system hoses and flanges.