Mercedes W177 AMG Water Pipe Heater Cooling Coolant Hose Line A2478306000

Mercedes W177 AMG Water Pipe Heater Cooling Coolant Hose Line is an original cooling system component designed for the precise routing of coolant in Mercedes vehicles. Thanks to its factory geometry and fitment tailored to the specific layout of the AMG version, the hose ensures stable engine operating conditions and predictable performance of the entire cooling system.

Specifications and technical data

• SKU: A2478306000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2478306000
• Substitutable numbers: A2478306000, A 247 830 60 00
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes group, responsible for transporting coolant between key engine components and accessories. In the W177 AMG model, a correctly selected water pipe:

• maintains the coolant circulation designed by the manufacturer,
• reduces the risk of localized overheating at critical points of the power unit,
• ensures stable thermal conditions during the dynamic driving characteristic of the AMG version.

By maintaining the original diameter, shape, and mounting points, the hose works seamlessly with factory clamps, connectors, and housings, which facilitates installation and system maintenance.

Benefits of using an original Mercedes hose

Using an original water hose in a Mercedes W177 AMG allows for maintaining cooling system performance parameters in accordance with the manufacturer's specifications. In practice, this means:

• properly selected wall flexibility, reducing stress during temperature and pressure changes,
• stable routing of the hose in the engine bay, without unwanted chafing against adjacent components,
• consistency with the factory mounting and guide system.

Such a fit contributes to maintaining a uniform operating temperature of the power unit, which is important for both engine durability and consistent performance in road and track conditions.

Component characteristics and service application

The offered water hose is a component originating from a Mercedes vehicle, which translates into consistency with the factory cooling system architecture. In the context of service work, the pipe will prove particularly useful in situations where:

• the existing hose shows signs of material wear or leaks,
• replacement of the component is necessary after engine bay intervention (e.g., accessory removal),
• maintaining the original hose routing in AMG vehicles is essential.

Selecting a hose compatible with the W177 AMG design reduces the risk of incorrect hose positioning, which could lead to point stresses, micro-cracks, or restricted coolant flow.

Technical support and knowledge about the cooling system

When planning work on the cooling system, it is worth considering not only the hose itself but also the general condition of the radiator, water pump, thermostat, and other hoses. For further knowledge on the diagnostics and operation of cooling systems, including the impact of overheating on engine durability, the following article will be helpful: Engine cooling system – overheating, repair, and used radiators.

Expanding the cooling system in a 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 lines, or sections connecting to the radiator, check the available parts in the Mercedes cooling system hoses and pipes category.