{"product_id":"hella-009149521-mass-air-flow-sensor","title":"Hella 009149521 Mass Air Flow Sensor","description":"\u003ch2\u003eHella Mass Air Flow Sensor 009149521\u003c\/h2\u003e\u003cp\u003eThe Hella 009149521 mass air flow sensor is a bolted, 5-pin replacement part for select Audi applications. It is built for vehicles that require accurate intake air measurement to support proper engine management and drivability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart type: Mass Air Flow Sensor\u003c\/li\u003e\n\u003cli\u003eBrand: Hella\u003c\/li\u003e\n\u003cli\u003ePart number: 009149521\u003c\/li\u003e\n\u003cli\u003eMounting type: Bolted\u003c\/li\u003e\n\u003cli\u003e5-pin connector design\u003c\/li\u003e\n\u003cli\u003eEmission control sensor for air metering input\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication Details\u003c\/h2\u003e\u003cp\u003eThis Hella mass air flow sensor 009149521 is used in select Audi R8 and Audi A8 Quattro models. Compatible fitment includes 2010-2012 Audi R8, 2014-2015 Audi R8, 2017-2018 Audi R8, 2020-2023 Audi R8, and 2014-2016 Audi A8 Quattro. For buyers searching for a bolted 5-pin mass air flow sensor for Audi R8 or Audi A8 Quattro, this part matches the listed OE-style configuration.\u003c\/p\u003e\u003cp\u003eThis part cross-references Delphi AF10489 and Hitachi Automotive MAF0057 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncorrect airflow signal to the engine control system\u003c\/li\u003e\n\u003cli\u003eRough idle caused by inaccurate air measurement\u003c\/li\u003e\n\u003cli\u003eDriveability issues related to air\/fuel calculation\u003c\/li\u003e\n\u003cli\u003eCheck engine light conditions tied to MAF sensor faults\u003c\/li\u003e\n\u003cli\u003eReduced throttle response from a failing sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the connector count and mounting style before installation. This sensor uses a bolted mounting design and a 5-pin connector, so the replacement should be matched to the vehicle’s original configuration. Confirm the part number 009149521 against the existing sensor and vehicle application before service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eHella is an established automotive parts brand with broad OE and aftermarket coverage. This sensor is specified by mounting type and connector count to support accurate application matching for the listed Audi fitments.\u003c\/p\u003e","brand":"Hella","offers":[{"title":"Default Title","offer_id":52415097962677,"sku":"BFDP-009149521","price":104.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/HL_009149521_Fro.jpg?v=1777799536","url":"https:\/\/www.partcatalog.com\/products\/hella-009149521-mass-air-flow-sensor","provider":"PartCatalog","version":"1.0","type":"link"}