Global Parts 3411788 A/C Expansion Valve

BMW A/C Expansion Valve for 1996-1999

Global Parts 3411788 is an A/C expansion valve/orifice tube for select BMW applications with a Seiko Seiki compressor. It regulates refrigerant flow before the evaporator so the system can use refrigerant cooling capacity effectively. This part number 3411788 is a direct-fit service component for BMW 323i, 328i, and 328is models in the listed years.

Key Features

• A/C expansion valve/orifice tube for refrigerant metering at the evaporator inlet
• Fits 1998-1999 BMW 323i, w/ Seiko Seiki Comp
• Fits 1997-1998 BMW 328i, w/ Seiko Seiki Comp
• Fits 1996-1999 BMW 328is, w/ Seiko Seiki Comp
• Global Parts part number 3411788 for service and replacement matching
• Cross-references Monroe Shocks & Struts 172286 and 182286 for the same application

How It Works

The expansion valve controls refrigerant delivery into the evaporator, helping the A/C system maintain proper pressure drop and cooling performance. On BMW 323i, BMW 328i, and BMW 328is models equipped with a Seiko Seiki compressor, this component is used during A/C service when the metering device needs replacement. Global Parts 3411788 follows the application-specific fitment listed for these vehicles.

Common A/C Issues It Can Address

• Weak cabin cooling from restricted refrigerant flow
• Erratic evaporator performance caused by a worn metering valve
• Improper A/C pressure balance during system service
• Reduced cooling output after compressor or evaporator work
• Service-related contamination at the refrigerant metering point

Installation Notes

Verify compressor type before ordering, since this part is listed for BMW models with a Seiko Seiki compressor. Replace the expansion valve/orifice tube during A/C system service, and inspect the system for contamination, leaks, and correct refrigerant charge before returning the vehicle to service. Confirm the application by year, model, and compressor configuration against the fitment data for part number 3411788.

Quality Assurance

Global Parts recommends replacing the expansion valve/orifice tube each time the A/C system is serviced to help maintain proper refrigerant metering and evaporator performance.