Global Parts 3411780 A/C Expansion Valve

A/C Expansion Valve for VW and Audi

Global Parts 3411780 is an A/C expansion valve for select Audi and Volkswagen vehicles. It meters refrigerant flow before the evaporator so the system can use cooling capacity efficiently, and it matches a wide range of VW and Audi applications.

• Direct-fit A/C expansion valve for select Audi Q3, A3, TT, and Volkswagen Passat, Tiguan, Jetta, GTI, and Golf applications
• Controls refrigerant flow into the evaporator for stable air conditioning performance
• Fits 2005-2018 Volkswagen and Audi models listed in the fitment data
• Global Parts part number 3411780 for catalog and service reference
• This part cross-references DENSO Auto Parts 475-2077 for the same application

Detailed Product Information

Global Parts 3411780 is an HVAC A/C flow restrictor in expansion valve form, built for vehicles that rely on precise refrigerant metering at the evaporator inlet. By slowing refrigerant before it enters the evaporator, the valve helps the system use the refrigerant’s cooling potential as intended. This part number 3411780 is listed for many Volkswagen and Audi platforms, including Volkswagen Jetta, Golf, GTI, Tiguan, Passat, and Beetle, as well as Audi A3, A3 Quattro, TT, TT Quattro, TTS Quattro, and Q3 models.

Compatible With: 2015-2018 Audi Q3, 2015-2018 Audi Q3 Quattro, 2005-2016 Volkswagen Jetta, and 2009-2017 Volkswagen Tiguan, among other listed applications.

Common Repair Symptoms

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance changes after system service
• Restricted or unstable refrigerant flow in the HVAC circuit

Installation Notes

Replace the expansion valve/orifice tube whenever the A/C system is serviced, as recommended by the manufacturer. Verify the vehicle’s exact fitment by year, make, and model before installation, and inspect the surrounding HVAC components for contamination or wear that could affect system performance.

Quality Assurance

Global Parts recommends expansion valve replacement during A/C service to maintain proper refrigerant control and system efficiency. This part is built for the listed Volkswagen and Audi applications and is cataloged under part number 3411780.