Mercedes CLA C118 W177 W247 M282 Coolant Hose Water Cooling Pipe A2478307903

Mercedes CLA C118 W177 W247 M282 Coolant Hose Water Cooling Pipe is an original water system component, designed for the precise routing of coolant in modern engines. Thanks to its factory geometry and perfect fit for the specific engine bay architecture, it ensures stable coolant flow and proper cooperation with other system components. This is a practical solution for users looking for a proven cooling hose for their Mercedes.

Specifications and technical data

• SKU: A2478307903
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2478307903
• Substitutable numbers: A2478307903, A 247 830 79 03
• Category: Coolant Hoses

Purpose and function in the cooling system

This water hose is part of the Cooling system hoses and pipes category, responsible for transporting coolant between individual components of the M282 engine. The properly shaped route of the hose reduces the risk of kinks, flow turbulence, and uncontrolled thermal stress, which translates into a stable operating temperature for the engine.

A properly selected cooling hose helps maintain:

• proper fluid circulation throughout the system,
• even heat dissipation from the engine block and cylinder head,
• safe operating conditions under both city and highway driving loads.

Original fit for Mercedes models

The component was designed by the vehicle manufacturer, ensuring it retains factory mounting points and a layout consistent with the body and engine construction. This means the hose does not interfere with other components in the engine bay and can be installed in place of a worn-out part without the need for modifications.

Its original origin translates into:

• compliance with cooling system operating parameters,
• consistency with other water system components,
• easier identification and selection of parts using manufacturer part numbers.

Characteristics of the used component

The hose comes from the Mercedes brand and is a used item, which in practice means a real opportunity to reduce service costs while maintaining the factory design. For many users, this is a reasonable compromise between price and quality, especially in the case of maintenance repairs in the cooling system.

Choosing a used cooling system hose allows you to:

• maintain the original system specification,
• preserve compatibility with factory clamps and mounts,
• reduce the risk of problems resulting from imprecise aftermarket replacements.

The importance of a functional cooling system

A functional water hose has a direct impact on protecting the engine from overheating. Leaks, pressure drops, or restricted fluid flow can lead to an increase in operating temperature, and consequently, to accelerated engine wear. Therefore, replacing a worn-out hose with a properly selected component is an essential stage of any cooling system repair.

To better understand the impact of individual components on engine durability and the symptoms of overheating, it is worth reading the guide: Engine cooling system – overheating, repair, and used radiators. The article discusses the relationships between cooling system design and engine lifespan in an accessible way.

Comprehensive Mercedes cooling system service

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional lines, return hoses, or sections connecting to the radiator, check out the available parts in the Mercedes cooling system hoses and pipes category.

Summary

The Mercedes CLA C118 W177 W247 M282 Coolant Hose Water Cooling Pipe dedicated to the M282 engine in Mercedes CLA, A-Class, and B-Class models is a practical solution for users who want to restore proper coolant circulation while maintaining factory geometry and fit. Its original design, compatibility with the cooling system, and ease of installation in place of a worn-out part make it a functional choice for servicing modern Mercedes engines.