Mercedes W205 Water Coolant Cooling Pipe Hose Line M264 Petrol A2055018801

Mercedes W205 Water Coolant Cooling Pipe Hose Line M264 Petrol is an original component designed for the precise routing of coolant in petrol power units. Thanks to its factory geometry and fitment to the specific engine architecture, it ensures stable cooling parameters and proper cooperation with other system components. This is a practical service solution for users who want to maintain consistency with the original Mercedes design and avoid fitment issues associated with aftermarket replacements.

Specifications and technical data

• SKU: A2055018801
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055018801
• Substitutable numbers: A2055018801, A 205 501 88 01
• Fuel type: Petrol
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The offered hose belongs to the Cooling system pipes and hoses category and is designed for use with the M264 petrol engine in the W205 body. It is responsible for the controlled flow of coolant between selected system components, which has a direct impact on maintaining the correct operating temperature of the power unit, reducing the risk of overheating, and ensuring performance stability. Being dedicated to a specific fuel type (petrol) means that the hose geometry, connection diameters, and routing relative to engine accessories are adapted to the characteristics of this unit. In practice, this translates into:

• reliable coolant flow within the operating temperature range of the petrol engine,
• correct positioning relative to body elements and accessories,
• reduced risk of stress and leaks at connection points.

Benefits of using an original cooling hose

Choosing an original cooling hose for a Mercedes allows you to maintain the manufacturer's factory engineering standards. Compared to random replacements, this component offers:

• precise fitment to the cooling system – consistent with the W205 design with the M264 engine,
• consistency with other OEM components, which facilitates installation and service,
• maintenance of predictable thermal system operating parameters. This approach is particularly important in modern petrol units, where the cooling system works with advanced control electronics and extensive accessories. Using a hose with the appropriate shape and rigidity helps limit local overheating and supports even temperature distribution in the block and cylinder head.

Component condition and installation aspects

The hose comes from the Mercedes range and is a used part, which in practice represents a beneficial compromise between repair costs and maintaining the original specification. A used OEM component allows for an economical restoration of the cooling system while maintaining the factory standard of workmanship and fitment. During installation, it is recommended to:

• check the condition of the connection sockets in other system components,
• replace clamps or connectors with new ones if required by the repair procedure,
• bleed the cooling system after filling with coolant, in accordance with the service procedure for the W205. This procedure minimizes the risk of leaks and ensures stable system operation across the full load range of the petrol engine.

Technical support and related cooling system components

The cooling system in modern Mercedes vehicles is closely linked to the air conditioning and thermal management system of the entire powertrain. In case of problems with cabin cooling or lack of air conditioning efficiency, it is worth checking the guide on our blog: No cooling in the car – when an original used AC compressor makes sense. The article helps to understand the dependencies between thermal system components and facilitates informed service decisions. 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 coolant branches, check the available parts in the Mercedes cooling system pipes and hoses category.

Summary

The original Mercedes W205 Water Coolant Cooling Pipe Hose Line M264 Petrol is a solution that allows you to maintain the factory operating characteristics of the power unit and operating temperature stability. A used OEM component is a reasonable choice for drivers who expect reliable fitment, predictable installation, and compliance with the manufacturer's design, without the need to invest in expensive new components. It is a practical basis for further service work on the cooling system in your Mercedes.