Coolant Pipe Mercedes W213 C238 X253 Heater Water Cooling Hose Line A2742034002

The Mercedes W213 C238 X253 Air Conditioning Hose is an original cooling and air conditioning system component, designed for use in Mercedes vehicles of selected body series. The used hose ensures a factory fit, maintaining the correct refrigerant flow geometry and seal after proper installation. It is a practical solution for users seeking a part with a proven design at a reasonable price.

Specifications and technical data

• SKU: A2742034002-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742034002
• Substitutable numbers: A2742034002, A 274 203 40 02
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The hose is part of the Cooling System Hoses and Pipes group, responsible for safely conveying the working medium within the air conditioning system and related engine thermal system components. A correctly selected hose:

• maintains the correct refrigerant pressure in the system,
• reduces the risk of leaks at connections,
• ensures stable operation of the compressor and other air conditioning components,
• supports the maintenance of the correct operating temperature of the power unit.

Thanks to its factory geometry and dedicated routing, the hose does not interfere with other components in the engine bay, which facilitates installation and subsequent service maintenance.

Benefits of Using an Original Mercedes Hose

Using an original hose in W213, C238, and X253 series cars maintains the structural integrity of the entire system. Key advantages include:

• Factory Fit – correct connection diameters, length, and hose shape minimize the risk of stress and leaks.
• Stable operating parameters – appropriately selected flexibility and wall stiffness of the hose support uniform refrigerant flow.
• Seamless integration with original mountings and brackets in the body.
• Possibility of using existing service points and diagnostic procedures used in authorized service centers.

For users who want to restore full air conditioning functionality without altering the vehicle's structure, such a component is a technically safe and predictable solution in operation.

Characteristics of the Used Component

The offered hose is from the group of used parts, which helps reduce repair costs while maintaining the original manufacturer's specifications. This type of component is particularly attractive in cases of:

• post-accident repairs, where replacing a damaged section of the system is necessary,
• servicing heavily used vehicles, where quick parts availability is crucial,
• users seeking a compromise between price and compliance with the factory design.

Before installation, standard service procedures are recommended: checking system tightness, replacing sealing elements, and performing a pressure test after the system is assembled.

Technical Support and Additional Information

When selecting a hose, it is advisable to verify compatibility with the specific engine version and vehicle year, using manufacturer markings and service documentation. Data such as inventory ID, brand designation, or information about the part's condition, presented in the technical specifications section, can also be helpful.

If you are planning a comprehensive repair or upgrade of the cooling and air conditioning system in your Mercedes and need other parts from the same group, such as additional pipes, hoses, or connectors, check the available parts in the Mercedes Cooling System Hoses and Pipes category.

To better understand the relationship between the cooling system and cabin thermal comfort, as well as the impact of high temperatures on components, it is worth reading the guide “Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings”, which discusses practical aspects of operating and servicing these elements.