Mercedes W204 C207 W212 Water Coolant Pipe Hose Line M272 A2045012782

Mercedes W204 C207 W212 Water Coolant Pipe Hose Line M272 is an original cooling system component designed to work with the M272 engine unit in popular C-Class, E-Class, and coupé models. Thanks to its factory geometry and fitment for the specific engine configuration, it ensures stable coolant flow and a proper connection with other system components. This is a practical solution for users looking for a proven hose for professional repair or replacement.

Specifications and technical data

• SKU: A2045012782
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045012782
• Substitutable numbers: A2045012782, A 204 501 27 82
• Location on the vehicle: Left
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system pipes and hoses category and is responsible for transporting coolant within the M272 engine in Mercedes W204, C207, and W212 vehicles. It is designed to operate in the demanding environment of the engine bay, where it must withstand fluctuating temperatures, pressure, and vibrations while maintaining connection tightness.

The placement on the left side of the vehicle allows for precise routing of the hose in accordance with the factory system layout, which reduces the risk of collision with other components and facilitates servicing. The correct selection of such a component has a direct impact on maintaining a stable engine operating temperature and protecting the engine from overheating.

Compatibility with the M272 engine

The hose has been constructed specifically for the M272 engine, which means it fits the original connectors, mounting spacing, and spatial layout in the engine bay. As a result, installation is straightforward, without the need for modifications to other cooling system components.

Such fitment is particularly important in modern units, where slight deviations in hose routing can lead to stress, leaks, or rubbing against adjacent components. Choosing a hose dedicated to a specific engine allows you to maintain the factory performance of the cooling system and predictable behavior under various operating conditions.

Installation and operational characteristics

The element is intended for installation on the left side of the vehicle, which facilitates the identification of the correct installation point during service. The hose construction is adapted to existing mounting points on the body and engine, which promotes stable routing and limits the transfer of vibrations to the connections.

As a used part, the hose represents an attractive cost-effective alternative to new components while maintaining the manufacturer's original specifications. This is a solution often chosen in professional workshops, where both technical compliance and repair budget optimization are important.

The importance of a functional cooling hose

A functional coolant hose is crucial for engine safety. Leaks, pressure drops, or improper flow can lead to engine overheating and, consequently, costly damage. A properly selected and correctly installed hose helps maintain stable coolant circulation, which translates into a longer service life for the M272 engine.

If you want to better understand the impact of the cooling system on engine durability and the symptoms of overheating, it is worth checking out our guide: Engine cooling system – overheating, repair, and used radiators. This is a practical addition to your knowledge when planning service work.

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