Global Parts 3411559 A/C Expansion Valve

Mercedes-Benz A/C Expansion Valve

Global Parts 3411559 is an A/C expansion valve for select Mercedes-Benz models. It meters refrigerant flow before the evaporator so the system can use cooling capacity efficiently, and it is a direct-fit service part for common Mercedes-Benz HVAC repairs.

• Global Parts part number 3411559
• A/C expansion valve for refrigerant flow control at the evaporator
• Fits select Mercedes-Benz CLS550, CLS63 AMG S, CLS400, E400, E550, GLK350, CLS63 AMG, and E350 applications
• Compatible with front-position GLK350 applications and N/A-position listings shown in the fitment data
• Cross-references Four Seasons 39653 for the same application

How It Works

This expansion valve reduces refrigerant pressure before the evaporator, helping the HVAC system deliver the cooling performance expected in Mercedes-Benz CLS550, E550, and GLK350 service applications. Global Parts 3411559 is also referenced by UAC EX529509C and other listed interchange numbers for the same fitment family.

Vehicle Fitment

• Fits 2017-2018 Mercedes-Benz CLS550, N/A
• Fits 2014-2018 Mercedes-Benz CLS63 AMG S, N/A
• Fits 2016-2017 Mercedes-Benz CLS400, N/A
• Fits 2017 Mercedes-Benz E400, N/A
• Fits 2012-2017 Mercedes-Benz E550, N/A
• Fits 2010-2015 Mercedes-Benz GLK350, Front
• Fits 2014 Mercedes-Benz CLS63 AMG, N/A
• Fits 2012-2013 Mercedes-Benz E350, N/A

Common Service Issues

• Weak cabin cooling from restricted refrigerant metering
• Uneven evaporator performance during A/C operation
• HVAC service repairs that require replacement of the expansion valve
• Refrigerant flow control concerns in Mercedes-Benz A/C systems

Installation Notes

Replace the expansion valve during A/C system service when the system is opened or contamination is present. Verify the vehicle’s exact model year and position before installation, especially on Mercedes-Benz GLK350 front applications and other N/A-position listings. Follow proper evacuation, leak-check, and recharge procedures after service.

Quality Assurance

Global Parts recommends replacing the expansion valve/orifice tube each time the A/C system is serviced. This part is built for the listed Mercedes-Benz applications and cross-references Four Seasons 39653, UAC EX529509C, and the other interchange numbers shown for the same application family.