Mercedes C216 W221 Heater Heat Exchanger Radiator Blower A2218300561

Heater with heat exchanger and blower for Mercedes C216 / W221 is an original heating system component, designed for premium vehicles of this brand. It ensures stable heat transfer to the cabin interior and efficient air distribution, which translates to thermal comfort and predictable operation of the entire HVAC system. This is an OEM solution that allows for factory fitment and operating parameters consistent with manufacturer standards.

Specifications and technical data

• SKU: rhd-A2218300561
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218300561
• Substitutable numbers: A2218300561, A 221 830 05 61
• Category: Other Air Conditioning & Heating

Purpose and Function in the Heating System

The presented heater with heat exchanger and blower has been specifically designed for the luxury Mercedes C216 and W221 models. Its function is to effectively transfer thermal energy from the engine cooling system to the air directed into the cabin, and to evenly distribute this air through the integrated blower.

Thanks to its construction in line with Mercedes factory standards, this component works with the original electrical system and air ducts, which minimizes the risk of leaks and improper operation of the climate control and heating system.

Construction and Technical Advantages

The heater combines a heat exchanger and a blower module in one housing, simplifying installation and servicing. The applied geometry of the air ducts promotes uniform flow, and the appropriately selected heat exchange surface allows for rapid achievement of the set temperature inside the vehicle.

• integrated design of the heat exchanger and blower,
• factory fitment for the installation space in C216 / W221 models,
• designed to work with the original climate control system,
• stable air flow parameters across the entire operating range.

This solution allows for maintaining the cohesion of the heating system and reducing the need for additional modifications during replacement.

Condition, Fitment, and Application

The component is from a dismantled vehicle and is intended for users who expect an original part within a reasonable budget, while maintaining proper fitment to the vehicle's installation. Choosing an OEM component of this type reduces the risk of compatibility issues, which are common with universal aftermarket replacements.

To correctly select the heater for a specific engine and equipment version, it is recommended to compare the markings with the existing component and verify compatibility in the manufacturer's catalog or with a specialist. This will help avoid situations where differences in design details affect the installation or operation of the system.

Technical Support and Selection of Heating System Components

When modernizing or repairing the heating system, it is worth paying attention to the condition of other components, such as coolant hoses, seals, or air flap control elements. A comprehensive approach to servicing can extend the lifespan of the entire system and reduce vehicle downtime.

If you want to expand your knowledge on the selection and operation of air conditioning and heating components in a car, you will find practical tips in the article Air Conditioning and Heating – Part Selection and Maintenance for Year-Round Comfort, which describes, among other things, the principles of selecting used OEM components.

Related Categories and Additional Information

If you are planning a comprehensive repair or modernization of the heating and air conditioning zone in your Mercedes and need other parts from the same group, such as additional heaters, air vent control modules, or air duct housings, check the available parts in the Other Mercedes category.

To compare solutions used in different brands and vehicle segments, including sports models, you can also read the construction analysis in the article Audi RS vs Other Models – What Lies Under the Hood and Chassis?, which discusses, among other things, differences in manufacturers' approaches to designing key vehicle systems.