Water Hose Mercedes W211 CLS W219 M272 Cooling Coolant Pipe Line A2118301396

Water Hose Mercedes W211 CLS W219 M272 Cooling Coolant Pipe Line is an original cooling system component designed for Mercedes E-Class W211 and CLS W219 models with the M272 engine. This component from the Cooling system hoses and pipes group ensures proper coolant flow, stabilizing the engine's operating temperature and reducing the risk of overheating. Choosing an original water hose is an investment in predictable cooling system performance and safe engine operation.

Specifications and technical data

• SKU: A2118301396
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118301396
• Substitutable numbers: A2118301396, A 211 830 13 96
• Category: Coolant Hoses

Purpose and function in the cooling system

The water hose used in the M272 engine is responsible for the directional transport of coolant between key system components – the engine block, auxiliary circuit, and other cooling fittings. A properly selected water hose:

• maintains the tightness of the coolant circuit under varying operating pressures,
• ensures stable coolant flow under different engine loads,
• minimizes the risk of localized overheating and reduced radiator efficiency.

Thanks to its tailored geometry and factory-spec ends, the hose works with original connectors and clamps, which translates into trouble-free installation and repeatable system performance parameters.

Compatibility with Mercedes W211 and CLS W219 with M272 engine

The element has been designed with the specific engine bay architecture of Mercedes W211 and CLS W219 models equipped with the M272 unit in mind. This means that:

• the shape of the hose is adapted for routing along factory installation paths,
• support and mounting points correspond to the original brackets on the body,
• connection diameters are compatible with standard cooling system fittings.

Such a fit reduces material stress, decreases the risk of chafing against adjacent components, and helps maintain factory order in the engine bay.

Characteristics of the used component

The offered water hose is a used part, sourced from disassembly, which provides a cost-effective solution while maintaining the manufacturer's original specifications. In practice, this means:

• retaining factory geometry and material hardness compared to low-budget replacements,
• the possibility of direct replacement of a damaged or leaking hose without modifying the installation,
• an attractive price-to-quality ratio compared to new OEM parts.

Before installation, a standard visual inspection is recommended, as well as checking the condition of the connection surfaces and the flexibility of the hose wall to match the element to the specific technical condition of the vehicle.

The importance of a proper hose in the cooling system

A functional water hose in the M272 engine has a direct impact on the engine's lifespan. Leaks, micro-cracks, or deformations can lead to fluid loss, overheating, and secondary damage to seals and aluminum components. A properly selected and correctly installed water hose:

• stabilizes the engine's operating temperature across a wide range of loads,
• limits the risk of thermostat, water pump, and radiator failure,
• supports even heat dissipation from the block and cylinder heads.

To better understand the impact of individual components on the entire cooling circuit, it is worth reading the guide on diagnostics and operation, available in the article Engine cooling system – overheating, repair, and used radiators.

Expansion and modernization of the Mercedes cooling system

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

For drivers interested in a broader context of operation in high temperatures and optimization of service costs, the practical tips contained in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses the impact of external conditions on the efficiency of the entire cooling system, may also be useful.