Coolant Pipe Mercedes C118 W177 W247 Heater Water Cooling Hose Line A1775016102

Coolant Pipe Mercedes C118 W177 W247 Heater Water Cooling Hose Line is an original cooling system component designed for vehicles with a petrol engine. It ensures stable coolant flow between components, which translates into safe operation of the power unit under various load conditions.

Specifications and technical data

• SKU: A1775016102
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1775016102
• Substitutable numbers: A1775016102, A 177 501 61 02
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes group, responsible for transporting coolant between key engine components and accessories. The proper shape and diameter of the hose allow for maintaining the correct medium flow, which reduces the risk of engine overheating and local pressure drops in the circuit.

The element is dedicated to modern Mercedes C118, W177, and W247 series models powered by petrol, which allows for maintaining the factory routing geometry, correct positioning relative to other components, and compatibility with original connectors.

Benefits of using an original hose

Using an original coolant hose instead of a worn or leaking section allows you to:

• maintain a stable engine operating temperature across the full load range,
• minimize the risk of coolant leaks and drops in fluid levels,
• maintain compliance with the factory Mercedes cooling system design,
• reduce unwanted vibrations and stress thanks to the matched length and shape of the hose.

For petrol vehicles, maintaining a stable operating temperature is particularly important, which is why a functional coolant hose has a direct impact on the durability of the power unit, seals, and accessories.

Characteristics of the used component

The offered hose comes from a used vehicle, which is a cost-effective solution while maintaining the manufacturer's original specifications. This type of part is a good choice in situations where the existing hose has suffered mechanical damage, material aging, or thermal deformation, and the priority is to quickly restore full cooling system efficiency while maintaining factory fitment.

Before installation, it is recommended to perform a standard cooling system check – the condition of clamps, connectors, fluid level, and quality – so that the hose replacement brings the full operational effect and reduces the risk of further leaks.

Installation and operational tips

When installing the coolant hose in Mercedes vehicles with a petrol engine, it is worth paying attention to:

• correct positioning of the hose relative to the fan, accessory belts, and body elements,
• using appropriate hose clamps with the correct clamping force range,
• thorough bleeding of the system after refilling with fresh coolant,
• checking for leaks after the first engine heating and cooling cycles.

Regular inspection of hoses – especially in vehicles operated in high temperatures or in city traffic – allows for early detection of signs of material aging, such as cracks, flattening, or softening of the walls.

More Mercedes cooling system components

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 the available parts in the Mercedes cooling system hoses and pipes category.

Operational advice regarding the cooling system

When replacing hoses, it is worth analyzing the general condition of the cooling system – the radiator, fans, thermostat, and fluid quality. The impact of high temperatures on these elements and the potential savings when using used components are described in more detail in our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which will help you plan further service actions for your car.