Mercedes W205 Heating Water Line Hose Pipe A2058301802

The Mercedes W205 Heater Water Hose is an original component of the cooling and heating system, designed for precise routing of the heating medium within the W205 body. Thanks to its factory geometry and perfect fit for the manufacturer's installation, this item from the Hoses, Pipes, and Tubes category ensures proper medium flow and stable heater operation. It's a practical solution for users who prioritize compatibility with the factory system and want to avoid leakage issues.

Specifications and technical data

• SKU: A2058301802
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2058301802
• Substitutable numbers: A2058301802, A 205 830 18 02
• Category: Hoses, Lines & Pipes

Purpose and Function in the Heating System

The heater water hose in the Mercedes W205 is responsible for transporting the heating medium between the cooling system components and the cabin heater. A correctly selected and installed hose:

• ensures stable fluid flow in the heating circuit,
• reduces the risk of pressure drops and localized overheating,
• minimizes the possibility of leaks at critical points in the system.

By maintaining the original routing, the hose does not interfere with other engine bay and body components, which facilitates servicing and subsequent leak checks.

Construction and Fit for Mercedes W205

The component in question has been specifically designed for the W205 platform, taking into account the characteristic layout of components in the engine bay and bulkhead area. The factory hose geometry allows for secure seating in original brackets and guides, which reduces vibration and friction with adjacent elements.

Original manufacturing translates to:

• consistency with other cooling and heating system components,
• easier installation without the need for modifications,
• maintaining manufacturer-designed clearances from hot and moving parts.

Benefits of Using an Original Water Hose

Using an original heater water hose in the Mercedes W205 is particularly important in vehicles where consistent operating parameters and predictable system behavior are crucial. An item from the Hoses, Pipes, and Tubes category, selected according to the manufacturer's documentation:

• simplifies future fault diagnostics,
• reduces the risk of incorrect hose routing and material stress,
• supports the maintenance of proper engine and heater operating temperatures.

This solution is especially beneficial when replacing a damaged or leaking section of the system, where preserving the manufacturer's original design concept is desired.

Component Condition and Service Application

The heater water hose is offered in used condition, allowing for economical repair while maintaining the component's original origin. This type of part can be used for both immediate replacement of a damaged hose and during more extensive service work on the cooling and heating system.

Before installation, standard leak testing and inspection of the connection surfaces are recommended to ensure proper tightening of clamps and connectors in the vehicle's existing system.

Expanding Service Work Scope

If you are planning a comprehensive repair or upgrade of the cooling and heating system area in your Mercedes and need other components from the same category, such as flexible hose sections, rigid guide pipes, or additional system branches, check the available parts in the Mercedes Hoses, Pipes, and Tubes category.

When selecting used technical system components, it is also advisable to familiarize yourself with practical tips on assessing component condition and principles of safe installation – helpful information can be found in the article Stock vs. Sport Suspension – Construction Differences and Is It Worth Buying Used Suspension Parts?, which discusses general principles of working with used components in vehicles.