{"product_id":"four-seasons-39619-a-c-expansion-valve","title":"Four Seasons 39619 A\/C Expansion Valve","description":"\u003ch2\u003eFour Seasons 39619 Expansion Valve for Audi Q3\u003c\/h2\u003e\u003cp\u003eFour Seasons 39619 is a block-type A\/C expansion valve built for R134A systems and engineered to meter refrigerant flow through the HVAC circuit. It is a direct-fit style replacement for select Audi Q3 and Audi Q3 Quattro applications from 2015-2018.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBlock-type A\/C expansion valve for HVAC refrigerant control\u003c\/li\u003e\n\u003cli\u003eAluminum construction\u003c\/li\u003e\n\u003cli\u003eR134A refrigerant type\u003c\/li\u003e\n\u003cli\u003eFemale O-ring inlet and outlet connections\u003c\/li\u003e\n\u003cli\u003eLiquid inlet and outlet thread diameter: No. 8\u003c\/li\u003e\n\u003cli\u003eSuction inlet thread diameter: No. 10; suction outlet thread diameter: No. 12\u003c\/li\u003e\n\u003cli\u003eTwo mounting holes\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM requirements\u003c\/li\u003e\n\u003cli\u003eStyle without solenoid\u003c\/li\u003e\n\u003cli\u003eSuper heat setting: -3.500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Expansion Valve line focuses on precise refrigerant metering for automotive air conditioning systems. Part number 39619 is a block-style expansion valve with aluminum construction and O-ring sealing surfaces, built for R134A-equipped HVAC systems. It is listed for 2015-2018 Audi Q3 and 2015-2018 Audi Q3 Quattro models, making it a targeted replacement for vehicles needing accurate refrigerant flow control in the A\/C circuit. This part cross-references UAC EX10504C for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With 2015-2018 Audi Q3, N\/A. Compatible With 2015-2018 Audi Q3 Quattro, N\/A. Four Seasons 39619 is also referenced by OE-style interchange numbers 8U0820679 and 759835, along with A99496.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInconsistent cabin cooling performance\u003c\/li\u003e\n\u003cli\u003eImproper refrigerant metering through the evaporator circuit\u003c\/li\u003e\n\u003cli\u003eWarm air from the vents when the A\/C system is charged\u003c\/li\u003e\n\u003cli\u003eErratic evaporator temperature control\u003c\/li\u003e\n\u003cli\u003eHVAC performance problems tied to a worn or restricted expansion valve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle uses an R134A system and confirm the connection style, thread sizes, and block-type layout before installation. Inspect the A\/C system for contamination, leaks, or compressor debris before replacing the valve, and replace any damaged O-rings during service. Proper evacuation and recharge procedures are important after HVAC component replacement. Confirm fitment for Audi Q3 and Audi Q3 Quattro applications by model year before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons 39619 is specified as meeting or exceeding OEM requirements for the listed applications. The part is built to OE-style dimensions and connection points to support accurate fitment in compatible Audi Q3 and Audi Q3 Quattro HVAC systems.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44599783784629,"sku":"BBRN-39619","price":34.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_39619_Fro.jpg?v=1775068356","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-39619-a-c-expansion-valve","provider":"PartCatalog","version":"1.0","type":"link"}