Water Pipe Mercedes W204 OM642 Engine Cooling Radiator Coolant Hose A2045010782

Mercedes W204 W212 OM642 Water Hose Pipe is a component from the Cooling System Hoses and Pipes category, designed for diesel engines. It's a practical solution for users and workshops looking for a reliable, used cooling system component for Mercedes C-Class W204 and E-Class W212 models with the OM642 engine.

Specifications and technical data

• SKU: A2045010782
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045010782
• Substitutable numbers: A2045010782, A 204 501 07 82, KZ
• Fuel type: Diesel
• Category: Coolant Hoses

Application in the OM642 Engine Cooling System

The water hose in the cooling system is responsible for the stable flow of coolant between key engine components. In OM642 diesel engines, this is particularly important, as maintaining the correct operating temperature affects the durability of the auxiliary components, the turbocharger, and the overall performance of the diesel engine.

Choosing a hose specifically designed for particular Mercedes generations (W204, W212) helps maintain the original hose routing geometry, minimizing the risk of chafing, kinks, and leaks in the engine bay.

Benefits of Using an Original Cooling Hose

By choosing this water hose, you receive a component designed specifically to work with a diesel engine, which translates to:

• a secure fit with the connections and mounting points in the Mercedes cooling system,
• maintaining proper coolant circulation in the diesel engine,
• reducing the risk of engine overheating under load,
• easier installation due to compatibility with the factory hose routing.

For workshops, this means more efficient service operations and a lower risk of complaints related to leaks or improper fit of universal aftermarket parts.

Product Characteristics and Fitment

The Mercedes W204 W212 OM642 Water Hose Pipe is intended for diesel-powered vehicles where the cooling system operates under higher thermal load than in many gasoline engines. Using a hose from the same product line as original parts helps maintain:

• stable pressure in the cooling system,
• appropriate hose flexibility under temperature changes,
• correct hose routing relative to engine components and the bodywork.

This solution is particularly beneficial for preventative maintenance when replacing cooling system components as a set to avoid future failures.

Product Condition and Application in Service Practice

The offered hose is a used cooling system component, allowing for an economical repair while maintaining compliance with factory specifications. This type of component is often chosen by workshops specializing in the Mercedes brand when compatibility with original equipment and the ability to quickly restore vehicle functionality are paramount.

Before installation, standard service procedures are recommended: checking for leaks, the condition of the connections and clamps, and bleeding the cooling system after hose replacement to ensure proper coolant circulation in the diesel engine.

More About the Cooling System and Related Parts

If you are looking for other components from the Cooling System Hoses and Pipes category for this brand, check out our offer for Mercedes Cooling System Hoses and Pipes to find a complete solution for your car.

Want to better understand how the condition of hoses, pipes, and radiators affects engine operating temperature and the risk of overheating? See our guide article Engine Cooling System – Overheating, Repair, and Used Radiators, where you will find practical tips on diagnostics and prevention for modern car cooling systems.