Water Hose Mercedes W213 C238 C253 Diesel Engine OM642 Coolant Line A2135013982

Water Hose Mercedes W213 C238 C253 Diesel Engine OM642 Coolant Line is an original component from the Cooling system hoses and pipes group, designed to operate in the demanding thermal environment of a diesel engine. This used OEM part ensures a factory fit for the cooling system, which facilitates installation and reduces the risk of leaks. It is a practical solution for users who want to restore proper coolant circulation without compromising on compatibility.

Specifications and technical data

• SKU: A2135013982
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2135013982
• Substitutable numbers: A2135013982, A 213 501 39 82
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and function in the cooling system

This water hose is a component of the diesel engine cooling system, responsible for directing coolant between the various parts of the power unit. In the OM642 diesel engine, it operates at elevated temperatures and under constant pressure load, which is why its proper condition has a direct impact on the engine's thermal stability, protection against overheating, and even heat dissipation.

The original geometry of the connections and the hose routing allows for secure seating in the factory mounts, without tension or twisting, which promotes long-term, stable operation of the entire cooling system.

Benefits of using the original water hose

Using the original water hose in a Mercedes from the W213, C238, or C253 family with a diesel engine provides a number of practical benefits:

• factory fit for the OM642 engine cooling system, with no need for installation modifications,
• maintenance of proper coolant flow in critical areas of the power unit,
• reduced risk of leaks thanks to the correct layout and diameter of the ports,
• consistency with other cooling system components, such as the radiator, water pump, or thermostat.

As a result, the water hose serves as a functional addition to the factory cooling system, supporting the stable operation of the diesel engine in both city and highway driving conditions.

Characteristics of the used component

As a used part, the water hose retains the original design and operating parameters specified by the vehicle manufacturer. This solution allows for an economical repair of the cooling system while maintaining compliance with factory specifications. Choosing such a component is particularly beneficial for vehicles that are used intensively, where both cost and maintaining proper engine operating conditions are important.

The hose is designed to work with a diesel unit, meaning it has been engineered with the typical thermal and pressure loads found in diesel engines in mind, ensuring stable coolant flow throughout the entire operating range.

Technical support and additional information

To better understand how the condition of hoses and pipes affects the thermal safety of the power unit during periods of high temperatures, it is worth checking our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. You will find practical tips on the operation and diagnostics of cooling system components there.

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.

Summary

Water Hose Mercedes W213 C238 C253 Diesel Engine OM642 Coolant Line is a practical choice for users who expect factory fitment and proper cooling system operation at reasonable repair costs. The original design, compatibility with the diesel unit, and its classification in the Cooling system hoses and pipes group make this component a great fit for the service needs of modern Mercedes W213, C238, and C253 models.