Mercedes-Benz C-Class W203 M111 Shut Off Valve Pipe Hose A1112381382

Mercedes C W203 M111 Valve Hose A1112381382 is an original part from the Cooling System Hoses and Pipes group, designed for the M111 engine cooling system in the C-Class W203 model. This precisely shaped hose section ensures stable coolant flow in the valve area, promoting even engine operation and reducing the risk of overheating. Thanks to its factory geometry and specific engine configuration fit, this hose allows for an efficient and technically correct replacement of a worn-out part.

Specifications and technical data

• SKU: A1112381382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1112381382
• Substitutable numbers: A1112381382, A 111 238 13 82, EM
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The valve hose in the M111 engine is responsible for controlled coolant flow around the flow control valve. A correctly selected hose:

• maintains the seal of connections in a critical area of the cooling system,
• ensures stable coolant flow under varying engine loads,
• reduces the risk of localized overheating and decreased cooling efficiency.

With a design that meets manufacturer requirements, the hose works in conjunction with other system components, maintaining proper flexibility and resistance to operating temperatures.

Compatibility with Mercedes C W203 with M111 Engine

This part is specifically designed for use in M111 engines installed in the Mercedes C-Class W203 generation. This means the hose's geometry, connection diameters, and routing are adapted to the factory layout of components in the engine bay.

This precise fit results in:

• easier installation without the need for modifications,
• correct positioning relative to adjacent components,
• maintenance of manufacturer-designed flow parameters.

For the user, this means the ability to restore proper cooling system function while adhering to the standards used in Mercedes vehicles.

Component Characteristics and Application Benefits

The valve hose in the cooling system operates under conditions of elevated temperature and variable pressure, making the use of a high-quality component crucial. Using an original solution from the Cooling System Hoses and Pipes group helps maintain stable engine operating parameters and reduces the risk of failures due to leaks or hose deformation.

Key benefits include:

• maintaining the factory coolant flow characteristics,
• compatibility with other system components (valve, connectors, housings),
• the ability to technically correctly replace a worn hose without altering the vehicle's structure.

Used Condition – A Practical Approach to Servicing

The offered valve hose is a used part, representing a sensible compromise between repair costs and maintaining the original manufacturer's specifications. In practice, this allows for an economical hose replacement while ensuring compliance with the cooling system's original design.

This solution is particularly beneficial for daily driven vehicles where both proper engine operation and optimizing the service budget are important.

Technical Support and Cooling System Knowledge

To better understand the impact of hoses and pipes on engine longevity and the symptoms of cooling system malfunctions, it is worth consulting our guide. Practical information on diagnosing overheating, the importance of functional hoses, and the role of the radiator can be found in the article Engine Cooling System – Overheating, Repair, and Used Radiators.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional pipes, flexible hoses, or radiator connection sections, check the available parts in the Mercedes Cooling System Hoses and Pipes category.