{"product_id":"audi-nox-sensor-4h0907807e-4h0907807d-4h0907807j-4h0907807f-4h0907807m","title":"NOx Sensor for Audi \/ Volkswagen | OEM 4H0907807E \/ D \/ J \/ F \/ M | Nitrogen Oxide Sensor","description":"\u003ch2 data-section-id=\"l0zaa4\" data-start=\"117\" data-end=\"129\" class=\"PDq2pG_selectionAnchorContainer\"\u003eFitment\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"130\" data-end=\"295\"\u003eBased on OEM catalog cross-reference data, this NOx sensor family is used across \u003cstrong data-start=\"211\" data-end=\"236\"\u003eAudi A8 (4H platform)\u003c\/strong\u003e and related Volkswagen Group V6\/V8 TDI diesel SCR systems.\u003c\/p\u003e\n\u003cp data-start=\"297\" data-end=\"326\"\u003eTypical applications include:\u003c\/p\u003e\n\u003cul data-start=\"328\" data-end=\"525\"\u003e\n\u003cli data-section-id=\"dx9bup\" data-start=\"328\" data-end=\"366\"\u003eAudi A8 (4H \/ D4 platform) 3.0 TDI\u003c\/li\u003e\n\u003cli data-section-id=\"r05nx1\" data-start=\"367\" data-end=\"406\"\u003eAudi A8 4.2 TDI (selected variants)\u003c\/li\u003e\n\u003cli data-section-id=\"ph7c2l\" data-start=\"407\" data-end=\"447\"\u003eSCR (AdBlue) diesel emission systems\u003c\/li\u003e\n\u003cli data-section-id=\"wjrvk1\" data-start=\"448\" data-end=\"525\"\u003eRear \/ downstream NOx sensor positions depending on exhaust configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"527\" data-end=\"666\"\u003eFitment is strictly based on OE number matching and revision grouping:\u003cbr data-start=\"597\" data-end=\"600\"\u003e\u003cstrong data-start=\"600\" data-end=\"666\"\u003e4H0907807E \/ 4H0907807D \/ 4H0907807J \/ 4H0907807F \/ 4H0907807M\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"668\" data-end=\"671\"\u003e\n\u003ch2 data-section-id=\"1sn8sr4\" data-start=\"673\" data-end=\"699\"\u003eTechnical Description\u003c\/h2\u003e\n\u003cp data-start=\"700\" data-end=\"828\"\u003eThis NOx sensor is used in diesel exhaust aftertreatment systems to measure nitrogen oxide (NOx) concentration in exhaust gases.\u003c\/p\u003e\n\u003cp data-start=\"830\" data-end=\"999\"\u003eIt provides real-time feedback to the ECU to control SCR (Selective Catalytic Reduction) operation, including AdBlue dosing strategy and emissions compliance management.\u003c\/p\u003e\n\u003cp data-start=\"1001\" data-end=\"1151\"\u003eThis part family represents multiple hardware revisions used within the same platform generation, often differing by mounting position or calibration.\u003c\/p\u003e\n\u003chr data-start=\"1153\" data-end=\"1156\"\u003e\n\u003ch2 data-section-id=\"14jk4wc\" data-start=\"1158\" data-end=\"1185\"\u003eSymptoms \/ Fault Codes\u003c\/h2\u003e\n\u003cp data-start=\"1186\" data-end=\"1225\"\u003eCommon symptoms of failure may include:\u003c\/p\u003e\n\u003cul data-start=\"1227\" data-end=\"1397\"\u003e\n\u003cli data-section-id=\"1e8aa3i\" data-start=\"1227\" data-end=\"1249\"\u003eCheck engine light\u003c\/li\u003e\n\u003cli data-section-id=\"tb88yx\" data-start=\"1250\" data-end=\"1298\"\u003eP2200 \/ P229F fault codes (system dependent)\u003c\/li\u003e\n\u003cli data-section-id=\"9918q9\" data-start=\"1299\" data-end=\"1330\"\u003eSCR \/ AdBlue system warning\u003c\/li\u003e\n\u003cli data-section-id=\"1yecva8\" data-start=\"1331\" data-end=\"1373\"\u003eReduced engine performance (limp mode)\u003c\/li\u003e\n\u003cli data-section-id=\"12mwl3m\" data-start=\"1374\" data-end=\"1397\"\u003eIncreased emissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1399\" data-end=\"1402\"\u003e\n\u003ch2 data-section-id=\"1exb13b\" data-start=\"1404\" data-end=\"1426\"\u003eOE \/ Part Numbers\u003c\/h2\u003e\n\u003cul data-start=\"1427\" data-end=\"1501\"\u003e\n\u003cli data-section-id=\"ij2tmo\" data-start=\"1427\" data-end=\"1441\"\u003e4H0907807E\u003c\/li\u003e\n\u003cli data-section-id=\"ij2su9\" data-start=\"1442\" data-end=\"1456\"\u003e4H0907807D\u003c\/li\u003e\n\u003cli data-section-id=\"ij34lr\" data-start=\"1457\" data-end=\"1471\"\u003e4H0907807J\u003c\/li\u003e\n\u003cli data-section-id=\"ij2uir\" data-start=\"1472\" data-end=\"1486\"\u003e4H0907807F\u003c\/li\u003e\n\u003cli data-section-id=\"ij30co\" data-start=\"1487\" data-end=\"1501\"\u003e4H0907807M\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1503\" data-end=\"1506\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1508\" data-end=\"1516\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"qplmuk\" data-start=\"1518\" data-end=\"1553\"\u003eWhat does this NOx sensor do?\u003c\/h3\u003e\n\u003cp data-start=\"1554\" data-end=\"1663\"\u003eIt measures nitrogen oxide levels in diesel exhaust gases and sends data to the ECU for SCR emission control.\u003c\/p\u003e\n\u003ch3 data-section-id=\"o0zz7y\" data-start=\"1665\" data-end=\"1714\"\u003eAre all these part numbers interchangeable?\u003c\/h3\u003e\n\u003cp data-start=\"1715\" data-end=\"1903\"\u003eNot always. Even though they belong to the same 4H family, suffix differences (E \/ D \/ J \/ F \/ M) can indicate different positions (upstream\/downstream), calibration, or ECU compatibility.\u003c\/p\u003e\n\u003ch3 data-section-id=\"153fw06\" data-start=\"1905\" data-end=\"1943\"\u003eIs this sensor vehicle-specific?\u003c\/h3\u003e\n\u003cp data-start=\"1944\" data-end=\"2065\"\u003eYes. Compatibility is strictly determined by OE number matching. Audi A8 (4H platform) is the primary application family.\u003c\/p\u003e\n\u003ch3 data-section-id=\"zz2n8o\" data-start=\"2067\" data-end=\"2113\"\u003eCan similar NOx sensors be used instead?\u003c\/h3\u003e\n\u003cp data-start=\"2114\" data-end=\"2198\"\u003eNo. NOx sensors are ECU-calibrated components and must match exact OE specification.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51863387799684,"sku":"4N0907807D","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_4ed6eacd-ad70-4daf-a815-70d9bcd978ad.jpg?v=1778947092","url":"https:\/\/www.jslook.com\/products\/audi-nox-sensor-4h0907807e-4h0907807d-4h0907807j-4h0907807f-4h0907807m","provider":"ASHENG","version":"1.0","type":"link"}