Mercedes W251 Diesel OM642 Intercooler Outlet Hose Turbocharger Line A2515280382

The Mercedes W251 Diesel OM642 Intercooler Turbocharger Hose is an original intake system component designed for OM642 diesel engines. Thanks to its precise fit to the engine bay geometry, it ensures stable compressed air flow between the turbocharger and the intercooler, supporting efficient boost operation and proper engine performance. This is a practical solution for users seeking a factory component with predictable operating parameters.

Specifications and technical data

• SKU: A2515280382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2515280382
• Substitutable numbers: A2515280382, A 251 528 03 82
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and Role in the Boost System

The turbocharger intercooler hose in a Mercedes with an OM642 diesel engine is responsible for transporting compressed air from the turbocharger to the charge air cooler. A correctly selected hose:

• maintains intake system seal under load,
• minimizes boost pressure drops,
• reduces the risk of intake air overheating,
• supports stable engine operation across the entire RPM range.

For Diesel engines, proper airflow directly impacts dynamics, fuel consumption, and exhaust emissions, making the condition of boost system pipes and hoses crucial for maintaining factory specifications.

Construction and Fit for Mercedes W251

The presented component belongs to the Pipes, Hoses, and Tubes group, meaning it is designed to operate in the demanding thermal and pressure conditions of the engine bay. The hose's construction is adapted to:

• the body geometry of the Mercedes W251,
• the placement of the turbocharger and intercooler in the OM642 engine,
• typical operating pressure ranges for diesel engines.

The appropriate profiling and internal diameter of the hose help maintain proper airflow velocity, which translates to stable boost pressure and predictable engine response to accelerator pedal input.

Benefits of Using an Original Hose

Using an original intercooler hose in a Mercedes W251 with an OM642 diesel engine helps mitigate common issues encountered with aftermarket parts of uncertain quality. In practice, this means:

• reduced risk of leaks at connections,
• better resistance to exhaust gas and oil temperatures in the turbocharger vicinity,
• lower probability of cracks and deformations under pressure,
• preservation of the intake system's factory operating characteristics.

For users looking to restore proper boost system function after a failure or wear of the old hose, such a component is a practical and technically safe choice.

Condition, Verification, and Service Application

The offered hose is from the used parts group, making it an attractive cost-effective alternative while maintaining the component's factory origin. Such elements are often used in:

• routine boost system repairs after detecting leaks,
• preventive maintenance when experiencing symptoms of power loss or smoking,
• restoring the factory configuration after unsuccessful intake modifications.

Selecting a hose compatible with the OM642 diesel engine in the W251 body reduces installation time and avoids modifications, which is important for both workshops and individual users.

System Expansion – Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as intake pipes, vacuum hoses, or cooling system tubes, check the available parts in the Mercedes Pipes, Hoses, and Tubes category.

For drivers interested in a broader perspective on vehicle component diagnostics and construction, practical information on how vehicle systems work and examples of using used parts can be found in the article Steering System and Power Steering – How It Works and What Fails?.