Mercedes W212 Refrigerant Line Air Conditioning Pipe Line Tube A2128306200

The Mercedes W212 Air Conditioning Hose Pipe Line is an original cabin cooling system component designed for the E-Class W212 generation models. Thanks to its factory geometry and connectors tailored for Mercedes air conditioning systems, this used component allows for precise, technically correct repairs without altering the system's structure. It's a practical solution for users who want to restore air conditioning functionality while maintaining compliance with Mercedes manufacturer's factory standards.

Specifications and technical data

• SKU: A2128306200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2128306200
• Substitutable numbers: A2128306200, A 212 830 62 00
• Category: A/C Hoses & Fittings

Purpose and Function in the Air Conditioning System

The air conditioning hose pipe in a Mercedes W212 is responsible for the sealed routing of refrigerant between system components such as the compressor, condenser, evaporator, and expansion valve. A properly selected hose ensures:

• stable operating pressure in the system,
• correct refrigerant flow,
• reduction of energy losses during air conditioning operation,
• safe interaction with other system components.

By maintaining the factory shape and diameter, the line from this product group minimizes the risk of leaks and issues with system bleeding after service.

Construction and Fitment for Mercedes W212

Air conditioning lines, hoses, and connectors in Mercedes vehicles are designed for high resistance to pressure and temperature changes. The offered component is structurally adapted to the W212 body architecture, facilitating installation routing in the engine bay and along the vehicle body.

Original connectors allow for proper seating and sealing on factory spigots without the need for modifications. This is particularly important for air conditioning systems, where even a minor leak can lead to reduced cooling performance and the need for refrigerant refills.

Benefits of Using an Original Mercedes Hose

Choosing an original air conditioning hose for a Mercedes W212 from the Air Conditioning Lines, Hoses, and Connectors category is a solution that technically and functionally surpasses random aftermarket replacements. Key advantages include:

• factory fitment for the specific Mercedes generation's air conditioning system,
• maintenance of manufacturer-designed flow paths and cross-sections,
• easier installation due to compatibility with original mounting points and routing,
• reduced risk of vibrations and stresses that can occur with poorly matched replacements.

A used OEM part helps maintain the integrity of the entire system, contributing to stable compressor operation, uniform interior cooling, and predictable service parameters during filling and leak tests.

Condition, Verification, and Service Application

The offered air conditioning hose is a dismantled part, allowing for a reasonable repair cost while maintaining the original manufacturer's specifications. This type of part is particularly useful in situations where the system has suffered mechanical damage (e.g., after a collision, engine bay intervention, or bracket corrosion) and a specific section of the hose needs replacement.

In workshop practice, using an original hose from the same model series facilitates:

• correct air conditioning system bleeding and filling,
• maintenance of pressure parameters consistent with manufacturer's design,
• diagnosis of potential further faults, as the factor of an uncertain aftermarket replacement is eliminated.

More About Used Mercedes Parts from Dismantling

If you want to better understand how to safely use used components in premium cars, including Mercedes models, it's worth reading the article describing the practical aspects of selecting original dismantled parts, such as air conditioning compressors or comfort modules: Used Mercedes Parts – Original Components from Dismantling.

If you are planning a comprehensive repair or upgrade of the air conditioning system area in your Mercedes and need other parts from the same group, such as additional lines, flexible hoses, or service connectors, check the available parts in the Mercedes Air Conditioning Lines, Hoses, and Connectors category.