Mercedes-Benz W169 W245 180CDI 200CDI Water Coolant Pipe Hose A6400101382

Mercedes W169 W245 180CDI 200CDI Water Hose Pipe is a component from the Cooling System Hoses and Pipes group, designed for use in the cooling system of 180 CDI and 200 CDI diesel engines. It is a practical solution for users who want to restore proper coolant circulation and maintain stable engine operating conditions in their A-Class and B-Class models.

Specifications and technical data

• SKU: A6400101382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400101382
• Substitutable numbers: A6400101382, A 640 010 13 82
• Category: Coolant Hoses

Function and Application in the Cooling System

The water hose is responsible for directing coolant between key system components such as the engine block, heat exchangers, and other sections of the cooling system. A properly selected water pipe ensures:

• stable coolant flow under typical engine load conditions,
• maintenance of the engine's optimal operating temperature,
• reduced risk of overheating during city and highway driving,
• compatibility with the factory cooling system geometry in Mercedes A-Class W169 and B-Class W245 vehicles with 180 CDI and 200 CDI engines.

Compatibility and Fit for Mercedes W169 / W245

The water pipe has been designed with the specific routing of hoses in the engine compartment of W169 and W245 models in mind, where installation space is limited. The appropriate profiling of the hose facilitates:

• unobstructed routing relative to engine accessories,
• maintenance of the correct bending radius, which reduces the risk of kinks and flow restriction,
• installation in existing mounting points without the need for modifications.

Thanks to this, the water hose for Mercedes W169 and W245 allows for the preservation of the factory cooling system routing logic, which is important for both durability and subsequent service maintenance.

Characteristics of a Used Component

The offered hose comes from the used parts segment, allowing for economical repair of the cooling system while maintaining compliance with manufacturer solutions. In practice, this means the possibility of:

• replacing a damaged or leaking section of the cooling system with a component of the original shape,
• reducing service costs while maintaining the system's proper functionality,
• preserving the original design concept used in Mercedes vehicles.

Before installation, a standard check of tightness and the condition of the connection surfaces is recommended to ensure proper interaction with other cooling system components.

Importance of a Functional Water Hose for the Cooling System

A functional water hose directly impacts engine lifespan as it is responsible for maintaining stable operating temperatures. Leaks, cracks, or deformations can lead to coolant loss and, consequently, engine overheating. Therefore, replacing worn sections of the cooling system should be considered a part of preventative maintenance.

For drivers who want to better understand the symptoms of overheating and the impact of individual components on engine durability, the article: Engine Cooling System – Overheating, Repair, and Used Radiators will be helpful. This provides practical knowledge for planning cooling system work.

Expanding Cooling System Service for Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional hoses, return pipes, or connections to the radiator, check the available parts in the Mercedes Cooling System Hoses and Pipes category.

When planning broader service work on your car, it is also worth familiarizing yourself with practical tips on operating and replacing wear-and-tear vehicle components, described in the guide: TOP 10 Most Frequently Replaced Parts in Your Car. This will help you more easily plan your repair schedule and optimize vehicle maintenance costs.