Mercedes W205 Radiator Water Coolant Hose Pipe M276 Petrol Left N/S A2055017184

Mercedes W205 Radiator Water Coolant Hose Pipe M276 Petrol Left N/S is an original cooling system component designed for use with a petrol-powered engine. Thanks to its precise fit for the specific engine and body configuration, it ensures stable coolant flow and a proper connection between the radiator and other components. This is a solution for users who expect consistency with the factory design and predictable cooling system performance.

Specifications and technical data

• SKU: A2055017184
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055017184
• Substitutable numbers: A2055017184, A 205 501 71 84
• Location on the vehicle: Left
• Fuel type: Petrol
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes group and is responsible for transporting coolant in the left area of the engine bay. Its task is to maintain a leak-proof connection, resistant to temperature and pressure, between the radiator and components associated with the M276 petrol engine, which translates into a stable operating temperature for the power unit.

The placement on the left side of the vehicle is important for installation – the shape and geometry of the hose are adapted to be routed along factory mounting points, taking into account the proximity of other sub-assemblies. This minimizes the risk of rubbing against body parts or engine accessories, and the coolant flow remains unobstructed.

Compatibility with the M276 petrol engine

The hose has been designed to work with a petrol engine, which means it is adapted to the temperature and operating pressure ranges characteristic of this unit. The design of the hose takes into account:

• the appropriate internal diameter to ensure proper fluid flow,
• a profile matched to the radiator ports and engine components,
• material resistance to long-term contact with coolant.

As a result, installation is predictable, and connections are stable when using correctly selected clamps and connectors. This is especially important in vehicles where the cooling system operates under significant thermal load.

Benefits of using an original radiator hose

Using a hose that complies with factory specifications helps to limit typical problems resulting from the use of components with an incorrect shape or hardness. The most important advantages include:

• secure fit to the cooling system – no need for modifications, cutting, or bending,
• maintaining the factory hose routing, which facilitates service and diagnostics,
• consistency with other cooling system components in the W205 model.

For the user, this means a lower risk of leaks, overheating, and unplanned vehicle downtime. In the case of cooling systems, this has a direct impact on the durability of the power unit and operational comfort.

Condition of the component and use in service practice

The offered hose is a dismantled, used part, which makes it an attractive cost-effective alternative compared to new components, while maintaining compliance with the factory design. This type of part will work well both for standard replacement of a worn hose and for repairs after a cooling system failure, where restoring the tightness of the fluid circuit quickly is crucial.

Before installation, it is recommended to perform a standard verification of the connection surface condition, check the clamps, and bleed the system after filling it with fresh coolant. A properly performed service procedure allows you to fully utilize the potential of the offered component.

Cooling system expansion and technical knowledge

To better understand the impact of hoses and pipes on engine durability and the symptoms of overheating, it is worth consulting specialist materials. Practical information on the diagnostics and repair of cooling systems can be found in the article Engine cooling system – overheating, repair, and used radiators, which discusses, among other things, the importance of proper fluid flow in various engine designs.

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 the radiator to the engine block, check the available parts in the Mercedes cooling system hoses and pipes category.