Global Parts 3411571 A/C Expansion Valve

A/C Expansion Valve for Audi and Porsche

Global Parts 3411571 is an A/C expansion valve for vehicles that use a refrigerant flow restrictor at the evaporator. It meters refrigerant before the evaporator so the system can use cooling capacity efficiently. This part is a direct-fit service component for select Audi A4, Audi A4 Quattro, Audi A5, Audi A5 Quattro, Audi Q5, and Porsche Panamera applications.

Key Features

• Expansion valve/orifice tube style A/C flow restrictor
• Controls refrigerant flow before the evaporator
• Supports proper evaporator performance in the HVAC system
• Global Parts part number 3411571
• Cross-references Four Seasons 39473 for the same application

Detailed Description

Global Parts 3411571 is used in HVAC systems that rely on an expansion valve to regulate refrigerant entering the evaporator. By slowing refrigerant flow at this point, the system can better use the refrigerant’s cooling capability and maintain stable A/C operation. This part cross-references Four Seasons 39473 for the same application. It is listed for 2009-2012 Audi A4, 2009-2012 Audi A4 Quattro, 2010-2012 Audi A5, 2010-2012 Audi A5 Quattro, 2009-2012 Audi Q5, and 2010-2016 Porsche Panamera. Global Parts 3411571 is also referenced by OE-style numbers including 8K0820679A and 8K0820679B.

What It Helps Address

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance issues after system service
• Restricted refrigerant flow in the HVAC circuit
• Service-related wear in the expansion valve/orifice tube

Installation Notes and Tips

Install Global Parts 3411571 during A/C service when the expansion valve or orifice tube is being replaced. Verify the vehicle’s HVAC configuration and match the part to the exact Audi A4, Audi A5, Audi Q5, or Porsche Panamera application before installation. Clean the system as required and follow standard refrigerant recovery and recharge procedures.

Quality Assurance

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