Mercedes W205 W213 Air Conditioning Heater Matrix Unit Heater Housing Box

Mercedes W205 W213 Air Conditioning Heater Matrix Unit Heater Housing Box is an original heater and evaporator unit module designed for the factory HVAC system in C-Class and E-Class models. This component serves as the central air distribution point in the cabin, ensuring precise airflow guidance and stable operation of the heating and air conditioning system. Thanks to the OEM design, you maintain the factory air duct geometry, which translates into predictable performance of the entire system.

Specifications and technical data

• SKU: rhd-A2058309404
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2058309404
• Substitutable numbers: A2058309404, A 205 830 94 04, A2058308505, A 205 830 85 05
• Category: Other Air Conditioning & Heating

Purpose and function in the HVAC system

The presented Mercedes W205 W213 Air Conditioning Heater Matrix Unit Heater Housing Box is responsible for the mechanical integration of the heater core, evaporator, and airflow control flaps. It is within this module that air is directed to individual cabin zones, mixed with the appropriate amount of heat or cold, and distributed between the windshield, center vents, and footwell.

A properly selected HVAC housing allows you to:

• maintain the tightness of air ducts and reduce unwanted airflow noise,
• ensure the correct operation of mixing and distribution flaps,
• preserve factory mounting points in the dashboard,
• maintain stable operation of the air conditioning and heating system under various operating conditions.

Module construction and technical aspects

The heater and air conditioning module in this version is designed as a compact, serviceable unit that integrates several key HVAC system components into a single housing. As a result, replacing the entire body is often faster and safer than makeshift repairs to a damaged housing.

The most important design features include:

• factory air duct routing matched to the interior architecture of the Mercedes W205 / W213,
• integrated sockets and mounting points for airflow control elements,
• construction prepared for compatibility with the original air conditioning and heating control system.

By maintaining the original housing geometry, you minimize the risk of leaks, incorrect airflow direction, or assembly problems at factory mounting points.

Benefits of using an original module

Choosing an original Mercedes heater and air conditioning housing instead of a replacement allows you to maintain the consistency of the entire HVAC system with the manufacturer's design. This is important for both driving comfort and the durability of other components – from the blower fan and heater core to the evaporator and temperature sensors.

The most important advantages of using this module:

• factory fitment to the dashboard and vehicle wiring harnesses,
• stable airflow, which reduces windshield fogging and improves thermal comfort,
• the ability to restore proper system operation after mechanical damage or service interventions,
• consistency with Mercedes service documentation, which facilitates diagnostics and future repairs.

Condition, selection, and practical application

The item comes from a used vehicle, which in practice means it is a part with confirmed, real-world application in a production HVAC system. This type of module is particularly useful for post-collision repairs, replacing a damaged housing due to cracks, or interventions in the air conditioning and heating installation.

When selecting a heater and air conditioning housing for a specific body version and equipment level, it is worth paying attention to:

• compatibility with the vehicle generation (W205 / W213),
• the type of air conditioning system used in the car,
• the layout of mounts relative to the dashboard and center console.

To precisely confirm compatibility, you can use the manufacturer's markings – in the product specification, you will find both the OEM part number and interchangeable numbers, which facilitate matching to a specific vehicle configuration.

If you are planning a comprehensive repair or upgrade of the air conditioning and heating zone in your Mercedes and need other components from the same group, such as air ducts, additional control modules, or mounting elements, check out the available parts in the Other Mercedes category.

Technical support and knowledge about HVAC systems

When working with heater and air conditioning modules, it is worth knowing good service practices – from bleeding the system and checking for leaks to periodic maintenance. To better plan your repair and select the right components, you can use expert materials, such as the article on selecting and servicing HVAC elements: Air conditioning and heating – part selection and maintenance for year-round comfort.

If you are interested in comparing technical solutions used in different brands and segments, including sports versions, a comparative material regarding engine, brake, and chassis construction may also be useful: Audi RS vs other models – what is hidden under the hood and chassis?. It allows for a better understanding of how manufacturers design the cooperation of drivetrain, braking, and comfort systems, including air conditioning systems.