Mercedes A238 Water Coolant Filling Hose Pipe Line A2135017400

Mercedes A238 Water Coolant Filling Hose Pipe Line is an original cooling system component from the Cooling system hoses and pipes group, designed for Mercedes vehicles. This used OEM component ensures proper coolant flow, which translates into stable engine operating temperatures and safe operating conditions.

Specifications and technical data

• SKU: A2135017400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2135017400
• Substitutable numbers: A2135017400, A 213 501 74 00
• Category: Coolant Hoses

Technical characteristics of the water hose

Mercedes A238 Water Coolant Filling Hose Pipe Line is a cooling system component responsible for transporting coolant between engine components and the radiator. The properly shaped geometry of the hose minimizes the risk of kinking, reduces pressure drops, and helps maintain a stable flow of the working medium under demanding road conditions.

Original manufacturing for the Mercedes brand means maintaining factory connection diameters, proper material flexibility, and a precise fit for engine bay mounts. As a result, installation is predictable, without the need for modifications or the use of additional adapters.

Function in the cooling system

In a properly designed cooling system, the water hose is responsible for:

• stable coolant flow between key engine components,
• maintaining circuit tightness under varying temperatures and pressures,
• compatibility with factory clamps and connectors used in Mercedes vehicles,
• reducing vibrations and stress thanks to appropriately selected flexibility.

Choosing a hose from the same design group as other cooling system components allows for maintaining the technical consistency of the entire system and facilitates the diagnosis of potential leaks in the future.

Benefits of using an original Mercedes hose

Using an original water hose in a Mercedes car primarily ensures a secure fit to the cooling system and predictable behavior under thermal load. This item from the Cooling system hoses and pipes category has been designed for operation at high temperatures, under cyclic load and pressure changes, which is particularly important in city traffic and during highway driving.

The used OEM component is also a reasonable compromise between cost and quality – you retain the factory part specification while optimizing your repair budget. A properly selected hose reduces the risk of engine overheating, coolant leaks, and unplanned vehicle downtime.

Condition and service application

The offered water hose is a used item, making it an attractive solution for routine repairs, post-accident service, or restoring the efficiency of the cooling system in intensively used cars. It works well both as a replacement for a damaged hose and as a part used during the stage-by-stage regeneration of the entire cooling circuit.

Before installation, standard service procedures are recommended: checking other hoses, the condition of clamps, coolant quality, and connection tightness. This approach allows you to fully utilize the potential of the installed element and reduce the risk of further system interventions.

Cooling system expansion and additional materials

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 hoses, return lines, or sections connecting to the radiator, check out the available parts in the Mercedes cooling system hoses and pipes category.

To better understand how operating conditions affect the durability of hoses and the entire cooling system, it is worth checking out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. You will find practical tips on diagnostics, prevention, and the economical operation of components responsible for heat dissipation from the engine.