{"product_id":"air-mass-sensors-w-engine-air-duct-6420908237-fit-mercedes-w211-w164-x164-ml320","title":"Air Mass Sensors w\/ Engine Air Duct 6420908237 Fit Mercedes W211 W164 X164 ML320","description":"\u003ch2\u003eAir Mass Sensors with Engine Air Duct for Mercedes\u003c\/h2\u003e\u003cp\u003eThis air mass sensor and engine air duct assembly measures incoming airflow so the engine control unit can calculate the correct fuel mixture, and it is a direct replacement option cross-referenced to OEM part number 6420908237.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis air mass sensor with engine air duct is a replacement assembly that meters intake airflow and relays that data to the ECU for accurate fuel delivery. It is built for owners of Mercedes W211, W164, and X164 platform vehicles who need to restore proper air measurement. The air mass sensor and duct combination simplifies replacement by combining two commonly worn components in one unit.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCombined air mass sensor and engine air duct in a single assembly\u003c\/li\u003e\n\u003cli\u003eCross-referenced to OEM part number 6420908237 for fitment matching\u003c\/li\u003e\n\u003cli\u003eHousing designed to seal against unmetered air entering the intake tract\u003c\/li\u003e\n\u003cli\u003eSensor element positioned for consistent readings across the airflow range\u003c\/li\u003e\n\u003cli\u003eConnector and mounting points matched to the original layout\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercedes W211\u003c\/li\u003e\n\u003cli\u003efor Mercedes W164\u003c\/li\u003e\n\u003cli\u003efor Mercedes X164\u003c\/li\u003e\n\u003cli\u003efor Mercedes ML320\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRestoring drivability after a failed or contaminated mass air sensor\u003c\/li\u003e\n\u003cli\u003eReplacing a cracked or brittle intake duct that lets unmetered air in\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance on high-mileage Mercedes diesel and gasoline engines\u003c\/li\u003e\n\u003cli\u003eDiagnosing rough idle, lean codes, or reduced fuel economy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6420908237\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir mass sensor with engine air duct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Mercedes W211, W164, X164, ML320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What symptoms point to a failing air mass sensor? \u003cstrong\u003eA:\u003c\/strong\u003e Rough idle, hesitation, black smoke, and stored lean or mixture codes are common signs, and a scan tool reading of airflow values can confirm it. \u003cstrong\u003eQ:\u003c\/strong\u003e Should the duct be replaced with the sensor? \u003cstrong\u003eA:\u003c\/strong\u003e If the original duct is cracked or hardened, replacing both together prevents unmetered air leaks that would otherwise trigger the same faults again.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":50554603536470,"sku":"ZZ3N00441","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_2d3e13ef-ebb5-4e6f-b6e0-886eba70d29c.jpg?v=1790892158","url":"https:\/\/www.solidspare.com\/products\/air-mass-sensors-w-engine-air-duct-6420908237-fit-mercedes-w211-w164-x164-ml320","provider":"Solid Spare","version":"1.0","type":"link"}