Mercedes-Benz C CLK W203 C209 Air Conditioning Heating Evaporator A2098300458

The Mercedes-Benz C/CLK W203 C209 Air Conditioning and Heater Evaporator is an HVAC system component designed for front-end installation in the vehicle. It ensures efficient heat exchange between the refrigerant and air, which translates to stable cabin temperature and comfortable operation of the air conditioning and ventilation system. This solution is dedicated to Mercedes C-Class W203 and CLK C209 models, designed to fit the factory system architecture.

Specifications and technical data

• SKU: rhd-A2098300458
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2098300458
• Substitutable numbers: A2098300458, A 209 830 04 58, BG
• Location on the vehicle: Front
• Category: A/C Evaporators

Purpose and Function in the Air Conditioning System

The presented evaporator is responsible for intensive cooling of the air directed into the vehicle's interior and for cooperation with the heating system. Located in the front part of the car, within the heater and air conditioning unit, it works in conjunction with the compressor, condenser, and expansion valve to create a complete refrigerant circuit.

A properly selected evaporator for Mercedes-Benz C/CLK W203 C209 allows for maintaining:

• stable cooling performance under various thermal loads,
• uniform air distribution to all ventilation zones,
• correct cooperation with the factory air conditioning control electronics.

Compatibility and Fit for Mercedes-Benz

The evaporator has been specifically designed for the HVAC system architecture in Mercedes-Benz C-Class W203 and CLK C209, meaning factory fit for the heater housing, connection nipples, and mounting points. This ensures predictable installation for service, without the need for system modifications.

This component belongs to the Evaporators category, which facilitates its identification in parts catalogs and selection based on the vehicle manufacturer's technical documentation.

Condition, Verification, and Service Aspects

The offered evaporator is a used part, which in workshop practice often represents a reasonable compromise between repair cost and maintaining the original system specifications. Before installation, standard service procedures are recommended, such as checking system tightness, replacing the desiccant, and proper system bleeding and refrigerant filling.

Replacing the evaporator in a Mercedes-Benz C/CLK W203 C209 is particularly recommended in cases of:

• reduced cooling performance with a properly functioning compressor,
• detected leaks in the heater housing area,
• air conditioning system upgrade or comprehensive overhaul.

Benefits of Using a Dedicated Evaporator

Using an evaporator specifically designed for this generation of Mercedes-Benz allows for maintaining the original air conditioning operating parameters and predictable system behavior under various operating conditions. A correctly selected component reduces the risk of fitment issues, leaks, or improper hose routing.

If you are planning extensive repairs or upgrades to the air conditioning and heating zone in your Mercedes and need other parts from the same group, such as other evaporators, heater housing components, or air cooling system components, check the available parts in the Mercedes Evaporators category.

Additional Technical Support

When planning major work on the boost and air cooling systems in modern powertrains, it is advisable to use reliable technical materials. Practical tips on component selection, VIN-based compatibility verification, and pre-purchase checklists can be found in the article BMW Code B58, i.e., 340 HP from the aftermarket – a pre-purchase checklist for turbochargers and intercoolers for the BMW 3 Series (G20), which may serve as a reference point for planning similar service work.