Global Parts 3411452 A/C Expansion Valve

Mercedes-Benz A/C Expansion Valve

Global Parts 3411452 is an A/C expansion valve for select Mercedes-Benz and Chrysler applications. It meters refrigerant flow before the evaporator so the system can use cooling capacity efficiently, making it a direct-fit service part for common HVAC repairs.

• OE-style A/C expansion valve for refrigerant flow control
• Fits select Mercedes-Benz SLK350, SLK300, SLK55 AMG, SLK280, SLK230, SLK32 AMG, SLK320, C230, C240, C280, C320, C32 AMG, C350, E350, S430, S500, S55 AMG, S600, CL500
• Fits Chrysler Crossfire applications
• Global Parts part number 3411452
• Cross-reference: Four Seasons 39208

How It Works

This expansion valve slows and regulates refrigerant entering the evaporator, helping the A/C system maintain proper pressure drop and cooling performance. It is a practical replacement for Mercedes-Benz SLK350, C320, and related models when the original valve is restricted, leaking, or no longer controlling refrigerant flow correctly. Part number 3411452 is also referenced by UAC EX10170C for the same application.

Common Repair Symptoms

• Weak or inconsistent cabin cooling
• Incorrect evaporator refrigerant feed
• A/C performance loss after system service
• Restricted flow caused by a worn or contaminated valve
• Temperature fluctuations in Mercedes-Benz and Chrysler Crossfire HVAC systems

Installation Notes

Replace the expansion valve during A/C service when the system has been opened, contaminated, or repaired. Verify the vehicle application by year and model before installation, and follow standard HVAC service procedures for evacuation, leak checking, and refrigerant recharge.

Quality Assurance

Global Parts supplies service components for automotive HVAC repair, and this valve is built for the listed Mercedes-Benz and Chrysler applications. Confirm fitment against the vehicle’s model year and system configuration before ordering.