Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702032902

Visual condition of the part 

The product shows signs of use visible in the photos. 

Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line is a component from the Cooling system hoses and pipes group, designed for operation in the coolant circuit of M270 series engines. It is responsible for the stable routing of coolant between components, which has a direct impact on the engine's operating temperature and durability. Using an OEM component is a sensible choice when servicing the cooling system in Mercedes vehicles with C117, W176, and W246 bodies.

Specifications and technical data

• SKU: A2702032902
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2702032902
• Substitutable numbers: A2702032902, A 270 203 29 02
• Category: Coolant Hoses

Function in the cooling system

The water pipe in the M270 engine is responsible for the controlled flow of coolant between key system components. A properly selected and leak-free hose minimizes the risk of local overheating, reduced cooling efficiency, and uncontrolled leaks. Thanks to its factory geometry and fitment to the specific architecture of the power unit, the pipe maintains the correct flow diameter and stable positioning relative to other components.

Application in Mercedes C117, W176, W246 models

The Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line has been designed with the specific engine bay layout of Mercedes C117, W176, and W246 models in mind. This means:

• secure fitment to factory connectors and mounts,
• maintenance of the correct hose routing relative to engine accessories,
• reduction of material stress during operation at varying temperatures.

Such fitment translates into stable cooling system operation and reduces the risk of interference with other elements in the engine bay.

Benefits of choosing an original used pipe

Choosing a used OEM water pipe for a Mercedes allows you to combine cost control with the preservation of factory specifications. The original component from the Cooling system hoses and pipes group ensures:

• material compliance with the vehicle manufacturer's requirements,
• appropriate resistance to temperature and operating pressure,
• compatibility with original clamps and connectors.

This solution is particularly beneficial when servicing vehicles that are used intensively, where both durability and repair economy are important.

Professional installation and cooling system diagnostics

When replacing the water pipe in an M270 engine, it is worth performing a full inspection of the cooling system: connection tightness, the condition of other hoses, coolant quality, and the operation of the pump and thermostat. Proper installation includes:

• cleaning connectors of deposits and corrosion,
• using appropriate hose clamps,
• bleeding the system after refilling with fresh coolant.

Such an approach reduces the risk of repeated service interventions and supports stable engine operating temperature across a wide range of loads.

More Mercedes cooling system components

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

Expert support – how to maintain the cooling system

To better understand the impact of the condition of pipes, hoses, and other components on engine longevity, it is worth consulting our guide. Practical tips regarding overheating symptoms, diagnostics, and the importance of an efficient fluid circuit can be found in the article Engine cooling system – overheating, repair, and used radiators.