Heat Exchanger Mercedes W205 Air Conditioner Heater Radiator A0998300061

Mercedes W205 Heater Core A0998300061 is a component from the Heat Exchangers group, responsible for efficiently transferring thermal energy from the engine cooling system to the cabin heating system. A used original Mercedes heater core allows for maintaining the factory operating characteristics of the air conditioning and heating system, while offering a favorable cost-to-quality ratio. This is a solution for users who expect a proven design and compatibility with the W205 platform without the need for unknown aftermarket replacements.

Specifications and technical data

• SKU: A0998300061
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0998300061
• Substitutable numbers: A0998300061, A 099 830 00 61
• Category: Heater Cores

Role of the Heater Core in the Mercedes W205 Heating System

The heater core in a Mercedes W205 functions as a compact heat exchanger where coolant transfers energy to the air directed into the vehicle's interior. A properly selected component from this group ensures:

• stable cabin heating under various engine thermal loads,
• uniform temperature distribution in the ventilation ducts,
• compatibility with the factory climate control and temperature management systems.

By maintaining the original flow channel geometry and appropriate heat exchange surface area, a heater core dedicated to the W205 supports the proper operation of the blower, blend doors, and temperature sensors, which translates to predictable performance of the entire HVAC system.

Benefits of Using an Original Heat Exchanger

Using a component from the Heat Exchangers group sourced from the vehicle manufacturer minimizes the risk of installation problems and leaks. The design intended for the Mercedes W205 ensures:

• fitment with factory coolant system spigots and seals,
• correct positioning within the heater core housing and ventilation panel,
• maintenance of fluid and air flow parameters consistent with design specifications.

For the user, this means a reduced risk of window fogging, uneven heating, or unwanted airflow noises. A used OEM component also allows for optimizing repair costs while retaining the design intended by Mercedes engineers.

Characteristics of a Used Component

The offered heater core belongs to the group of used parts, which in practice means it comes from a dismantled vehicle and has already undergone a period of use. Such components are often chosen in situations where:

• maintaining the original system specification is important,
• the repair needs to be economical while using OEM parts,
• the vehicle is used intensively and quick availability of the part is crucial.

For heat exchangers, it is important to follow appropriate cooling system bleeding procedures and leak checks during installation, which allows for fully utilizing the potential of the installed heater core.

Selection and Integration with the Vehicle System

To ensure proper cooperation of the heater core with the cooling and air conditioning system in a Mercedes W205, matching the component to the specific vehicle configuration is crucial. In practice, this means verifying compatibility with manufacturer markings and interchangeable part numbers, which minimizes the risk of installation and functional problems. A correctly selected heat exchanger supports:

• stable operation of the thermostat and coolant pump,
• correct functioning of the automatic cabin temperature regulation,
• maintenance of the engine's appropriate operating temperature when heating is active.

For users who want to deepen their knowledge on the cost-effectiveness of using aftermarket components, selection procedures based on manufacturer markings, and the real differences between new and used parts, an expert guide will be helpful: Why Buy Used Gearboxes and Engines – Facts Instead of Myths.

Expanding Repairs within Mercedes Heat Exchangers

If you are planning a comprehensive repair or upgrade of the heating and cooling system area in your Mercedes and need other components from the same group, such as additional heater cores, coolant radiators, or auxiliary heat exchangers for auxiliary systems, check the available parts in the Mercedes Heat Exchangers category.