{"product_id":"audi-vw-nox-sensor-4n0907807f","title":"NOx Sensor for Audi \/ Volkswagen | OEM 4N0907807F | Nitrogen Oxide Sensor","description":"\u003ch2 data-section-id=\"l0zaa4\" data-start=\"101\" data-end=\"113\" class=\"PDq2pG_selectionAnchorContainer\"\u003eFitment\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"114\" data-end=\"341\"\u003eBased on OE catalog cross-reference data, \u003cstrong data-start=\"156\" data-end=\"182\"\u003e4N0907807F \/ 4N0907807\u003c\/strong\u003e belongs to the Volkswagen Group MLB Evo \/ luxury platform emissions system family, used on newer VAG large vehicles equipped with diesel SCR (AdBlue) systems.\u003c\/p\u003e\n\u003cp data-start=\"343\" data-end=\"371\"\u003eCommon applications include:\u003c\/p\u003e\n\u003cul data-start=\"373\" data-end=\"657\"\u003e\n\u003cli data-section-id=\"196lmk2\" data-start=\"373\" data-end=\"432\"\u003eAudi A8 (4N platform) 3.0 TDI \/ 4.0 TDI diesel variants\u003c\/li\u003e\n\u003cli data-section-id=\"di5cvb\" data-start=\"433\" data-end=\"500\"\u003eAudi Q8 (4M facelift \/ MLB Evo derivatives depending on engine)\u003c\/li\u003e\n\u003cli data-section-id=\"vm29du\" data-start=\"501\" data-end=\"546\"\u003eAudi Q7 (4M facelift diesel applications)\u003c\/li\u003e\n\u003cli data-section-id=\"qyvg6h\" data-start=\"547\" data-end=\"609\"\u003eVolkswagen Touareg (CR \/ MLB Evo platform diesel variants)\u003c\/li\u003e\n\u003cli data-section-id=\"1wro7pc\" data-start=\"610\" data-end=\"657\"\u003eSCR (AdBlue) exhaust aftertreatment systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"659\" data-end=\"734\"\u003eFitment is strictly based on OE number matching: \u003cstrong data-start=\"708\" data-end=\"734\"\u003e4N0907807F \/ 4N0907807\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"736\" data-end=\"919\"\u003eOE cross-reference data confirms this sensor family is used in MLB Evo-generation diesel platforms with updated emissions control architecture. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"921\" data-end=\"924\"\u003e\n\u003ch2 data-section-id=\"1sn8sr4\" data-start=\"926\" data-end=\"952\"\u003eTechnical Description\u003c\/h2\u003e\n\u003cp data-start=\"953\" data-end=\"1073\"\u003eThis NOx sensor measures nitrogen oxide (NOx) concentration in diesel exhaust gases and sends real-time data to the ECU.\u003c\/p\u003e\n\u003cp data-start=\"1075\" data-end=\"1221\"\u003eIt is part of the SCR (Selective Catalytic Reduction) system and controls AdBlue dosing strategy to reduce emissions and ensure Euro 6 compliance.\u003c\/p\u003e\n\u003cp data-start=\"1223\" data-end=\"1387\"\u003eThe sensor is an integrated electronic module designed for high-temperature exhaust environments and continuous emissions monitoring in modern VAG diesel platforms.\u003c\/p\u003e\n\u003chr data-start=\"1389\" data-end=\"1392\"\u003e\n\u003ch2 data-section-id=\"14jk4wc\" data-start=\"1394\" data-end=\"1421\"\u003eSymptoms \/ Fault Codes\u003c\/h2\u003e\n\u003cp data-start=\"1422\" data-end=\"1461\"\u003eCommon symptoms of failure may include:\u003c\/p\u003e\n\u003cul data-start=\"1463\" data-end=\"1633\"\u003e\n\u003cli data-section-id=\"1e8aa3i\" data-start=\"1463\" data-end=\"1485\"\u003eCheck engine light\u003c\/li\u003e\n\u003cli data-section-id=\"tb88yx\" data-start=\"1486\" data-end=\"1534\"\u003eP2200 \/ P229F fault codes (system dependent)\u003c\/li\u003e\n\u003cli data-section-id=\"9918q9\" data-start=\"1535\" data-end=\"1566\"\u003eSCR \/ AdBlue system warning\u003c\/li\u003e\n\u003cli data-section-id=\"1yecva8\" data-start=\"1567\" data-end=\"1609\"\u003eReduced engine performance (limp mode)\u003c\/li\u003e\n\u003cli data-section-id=\"12mwl3m\" data-start=\"1610\" data-end=\"1633\"\u003eIncreased emissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1635\" data-end=\"1638\"\u003e\n\u003ch2 data-section-id=\"1exb13b\" data-start=\"1640\" data-end=\"1662\"\u003eOE \/ Part Numbers\u003c\/h2\u003e\n\u003cul data-start=\"1663\" data-end=\"1742\"\u003e\n\u003cli data-section-id=\"tydzb9\" data-start=\"1663\" data-end=\"1677\"\u003e4N0907807F\u003c\/li\u003e\n\u003cli data-section-id=\"sw0zxf\" data-start=\"1678\" data-end=\"1691\"\u003e4N0907807\u003c\/li\u003e\n\u003cli data-section-id=\"1d4jykp\" data-start=\"1692\" data-end=\"1742\"\u003eRelated OE family (platform-dependent revisions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1744\" data-end=\"1747\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1749\" data-end=\"1757\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"qplmuk\" data-start=\"1759\" data-end=\"1794\"\u003eWhat does this NOx sensor do?\u003c\/h3\u003e\n\u003cp data-start=\"1795\" data-end=\"1898\"\u003eIt measures nitrogen oxide levels in diesel exhaust and sends data to the ECU for SCR emission control.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1q3hz4t\" data-start=\"1900\" data-end=\"1935\"\u003eWhich vehicles use this part?\u003c\/h3\u003e\n\u003cp data-start=\"1936\" data-end=\"2083\"\u003eIt is commonly used in Audi A8 (4N), Q7\/Q8 (MLB Evo diesel variants), and Volkswagen Touareg diesel applications depending on engine configuration.\u003c\/p\u003e\n\u003ch3 data-section-id=\"153fw06\" data-start=\"2085\" data-end=\"2123\"\u003eIs this sensor vehicle-specific?\u003c\/h3\u003e\n\u003cp data-start=\"2124\" data-end=\"2281\"\u003eYes. It is strictly matched by OE number. Even small suffix differences (F \/ G \/ N \/ R variants) can indicate different ECU calibration or mounting position.\u003c\/p\u003e\n\u003ch3 data-section-id=\"zz2n8o\" data-start=\"2283\" data-end=\"2329\"\u003eCan similar NOx sensors be used instead?\u003c\/h3\u003e\n\u003cp data-start=\"2330\" data-end=\"2427\"\u003eNot recommended. NOx sensors are ECU-calibrated components and must match exact OE specification.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51863387766916,"sku":"4N0907807F","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_3fc51e5b-25a5-4827-9210-18500f13ca32.jpg?v=1778947091","url":"https:\/\/www.jslook.com\/products\/audi-vw-nox-sensor-4n0907807f","provider":"ASHENG","version":"1.0","type":"link"}