{"product_id":"dorman-604-829-hvac-blend-door-actuator","title":"Dorman 604-829 HVAC Blend Door Actuator - Main","description":"\u003ch2\u003eOverview of Dorman HVAC Blend Door Actuator 604-829\u003c\/h2\u003e\u003cp\u003eThe Dorman HVAC Blend Door Actuator 604-829 is designed for precise control of airflow temperature in select Audi and Volkswagen vehicles. This rotary switch actuator ensures reliable operation of the HVAC system in models such as the Audi A4, A4 Quattro, RS4, S3, S4, and Volkswagen Passat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRotary switch activation type for smooth and accurate blend door movement\u003c\/li\u003e\n\u003cli\u003eFive-pin male terminal configuration for secure electrical connection\u003c\/li\u003e\n\u003cli\u003eDurable plastic construction optimized for HVAC system environments\u003c\/li\u003e\n\u003cli\u003eIncludes one air door actuator per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Attributes\u003c\/h2\u003e\u003cp\u003eThe Dorman 604-829 blend door actuator features a rotary switch activation type, which allows for precise modulation of the HVAC blend door position. It connects via five male pin terminals, ensuring compatibility with the vehicle’s existing wiring harness. Constructed from durable plastic materials, this actuator is engineered to withstand the temperature fluctuations and mechanical demands within the HVAC system. The part is specifically designed to replace faulty or worn actuators in Audi A4, A4 Quattro, RS4, S3, S4, and Volkswagen Passat models, maintaining proper climate control functionality.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis HVAC blend door actuator is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAudi A4 and A4 Quattro\u003c\/li\u003e\n\u003cli\u003eAudi RS4\u003c\/li\u003e\n\u003cli\u003eAudi S3 and S4\u003c\/li\u003e\n\u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse the Dorman 604-829 actuator to restore proper airflow temperature control and eliminate HVAC system issues related to blend door operation in these models.\u003c\/p\u003e\u003ch2\u003eCommon HVAC Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInconsistent cabin temperature due to blend door malfunction\u003c\/li\u003e\n\u003cli\u003eUnresponsive or stuck HVAC blend door movement\u003c\/li\u003e\n\u003cli\u003eUnusual noises from the HVAC system during temperature adjustment\u003c\/li\u003e\n\u003cli\u003eFailure of the rotary switch to properly modulate airflow temperature\u003c\/li\u003e\n\u003cli\u003eElectrical connection problems caused by damaged terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle ignition is off before beginning installation\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery to prevent electrical shorts during replacement\u003c\/li\u003e\n\u003cli\u003eLocate the blend door actuator behind the dashboard on the HVAC housing\u003c\/li\u003e\n\u003cli\u003eCarefully disconnect the five-pin male terminal connector before removing the old actuator\u003c\/li\u003e\n\u003cli\u003eInstall the Dorman 604-829 actuator by aligning the rotary switch and securing it in place\u003c\/li\u003e\n\u003cli\u003eReconnect the electrical connector and test HVAC system operation before reassembling dashboard components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 604-829 HVAC blend door actuator undergoes rigorous quality control to ensure reliable performance in Audi and Volkswagen vehicles. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44017199284405,"sku":"BKKY-604-829","price":63.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_604829_Fro.jpg?v=1775009088","url":"https:\/\/www.partcatalog.com\/products\/dorman-604-829-hvac-blend-door-actuator","provider":"PartCatalog","version":"1.0","type":"link"}