{"product_id":"98-05-volkswagen-passat-air-conditioning-ac-compressor-relay-12v-8d0-919-578-a-1","title":"98-05 Volkswagen Passat AC Compressor Relay 12V 8D0919578A","description":"\u003cdiv\u003e\n\u003ch1\u003e1998-2005 Volkswagen Passat A\/C Compressor Relay | 8D0 919 578 A\u003c\/h1\u003e\n\u003cp\u003eRestore consistent cabin cooling in 1998–2005 Volkswagen Passat models with this 12-volt air conditioning compressor relay, manufactured to match the exact OE reference 8D0 919 578 A.\u003c\/p\u003e\n\u003cp\u003eThe climate system relies on this electromechanical switch to route controlled current directly to the compressor clutch coil. When the original relay develops worn contacts or internal fatigue, drivers typically experience delayed refrigerant engagement, fluctuating airflow temperatures, or persistent cooling fan noise after shutting off the ignition. Installing a replacement calibrated to the original circuit specifications returns proper clutch cycling behavior and eliminates parasitic electrical drain from a stuck activation pathway.\u003c\/p\u003e\n\u003cp\u003eThis component functions as a direct part-number cross-reference for diagnostic readouts indicating AC compressor control signal faults or unverified aftermarket swaps that trigger mismatched coil resistance. It aligns with factory wiring harness configurations for those chassis years, maintaining correct terminal spacing and dielectric sealing integrity within the primary fuse assembly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Vehicle Platform: 1998–2005 Volkswagen Passat\u003c\/li\u003e\n\u003cli\u003eOE Reference Part Number: 8D0 919 578 A (formatted as 8D0919578A)\u003c\/li\u003e\n\u003cli\u003eSystem Voltage: 12 V DC\u003c\/li\u003e\n\u003cli\u003eCircuit Application: Power distribution to the A\/C compressor clutch activation pathway\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDuplicate the terminal arrangement of the failing unit before seating the new relay into the dashboard fuse block to guarantee straightforward integration without harness modification.\u003c\/p\u003e98-05 Volkswagen Passat Air Conditioning AC Compressor Relay 12V 8D0 919 578 A\u003c\/div\u003e","brand":"Audi","offers":[{"title":"Default Title","offer_id":46088247476307,"sku":"EB-397178582118","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0274\/9402\/3251\/files\/57_1fb3b913-17cd-462b-b564-a5f55751fd2d.png?v=1788173369","url":"https:\/\/daleynumber1deals.com\/products\/98-05-volkswagen-passat-air-conditioning-ac-compressor-relay-12v-8d0-919-578-a-1","provider":"DALEY1DEALS,LLC.","version":"1.0","type":"link"}