Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line A2055011500

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line is an original component from the Cooling system hoses and pipes group, designed for operation in the cooling system of Mercedes C-Class W205 generation models. This used OEM component ensures proper coolant flow between the radiator and other system elements, which promotes stable engine operating temperature and reduces the risk of overheating.

Specifications and technical data

• SKU: A2055011500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055011500
• Substitutable numbers: A2055011500, A 205 501 15 00
• Part type: Hose
• Category: Coolant Hoses

Function and role in the cooling system

The radiator water hose in the Mercedes W205 is responsible for the controlled flow of coolant between the radiator and other system components. A properly selected hose:

• maintains the tightness of the coolant circuit under variable operating pressure,
• stabilizes the engine temperature across a wide range of loads,
• reduces the risk of localized overheating and loss of radiator efficiency.

Thanks to its tailored geometry and factory-spec ends, the hose maintains proper positioning in the engine bay, minimizing stress and contact with hot or moving parts.

OEM part selection and compatibility

The offered hose belongs to the group of original Mercedes components, which translates to compliance with the vehicle's factory specifications. In practice, this means:

• secure fitment to the connectors and mounts in the W205 cooling system,
• preservation of the designed internal diameter and flow cross-section,
• easier installation without the need for modifications or additional adapters.

The element has a dedicated OEM part number and associated interchangeable numbers, which facilitates compatibility verification using manufacturer identifiers or the vehicle's VIN in service catalogs.

Condition of the item and installation aspects

The hose is offered as a used part, which allows for an economical repair of the cooling system while maintaining original specifications. Before installation, a standard visual inspection for any signs of operational wear is recommended, as well as verification of the sealing surfaces at the connectors.

During installation, it is worth paying attention to:

• proper routing of the hose in relation to factory brackets and guides,
• tightening torque of clamps or quick-connectors in accordance with service documentation,
• bleeding the cooling system after refilling with fresh fluid.

Importance of functional cooling system hoses and pipes

Functional Cooling system hoses and pipes are crucial for maintaining a stable engine operating temperature, especially in urban conditions and under high thermal load. Leaks, loss of material rigidity, or micro-cracks can lead to fluid loss, overheating, and accelerated wear of the engine unit.

To better understand the impact of individual cooling system components on engine longevity and the symptoms of overheating, it is worth reading the guide article Engine cooling system – overheating, repair, and used radiators, which discusses practical aspects of diagnostics and component selection.

Expanding the cooling system in a Mercedes

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

Such an approach allows you to refresh several critical elements of the coolant circuit at once, which reduces the risk of future leaks and makes it easier to maintain stable operating parameters for the entire system.