{"product_id":"audi-vw-3-0-tdi-nox-sensor-8r0907807l-5wk97255","title":"NOx Sensor for Audi \/ Volkswagen 3.0 TDI | OEM 8R0907807L 5WK97255 | Nitrogen Oxide Sensor","description":"\u003ch2 data-section-id=\"l0zaa4\" data-start=\"118\" data-end=\"130\"\u003eFitment\u003c\/h2\u003e\n\u003cp data-start=\"131\" data-end=\"267\"\u003eCompatible with Volkswagen Group diesel vehicles equipped with 3.0 TDI engines and SCR (Selective Catalytic Reduction) emission systems.\u003c\/p\u003e\n\u003cp data-start=\"269\" data-end=\"355\"\u003eCommon applications include Audi and VW platforms using this NOx sensor configuration:\u003c\/p\u003e\n\u003cul data-start=\"357\" data-end=\"497\"\u003e\n\u003cli data-section-id=\"1gw999t\" data-start=\"357\" data-end=\"400\"\u003eAudi Q5 (8RB) 3.0 TDI \/ SQ5 TDI quattro\u003c\/li\u003e\n\u003cli data-section-id=\"xerj8h\" data-start=\"401\" data-end=\"456\"\u003eVolkswagen Group 3.0 TDI diesel engine applications\u003c\/li\u003e\n\u003cli data-section-id=\"oh2ok3\" data-start=\"457\" data-end=\"497\"\u003eSCR \/ AdBlue diesel emission systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"499\" data-end=\"604\"\u003eFitment depends on engine code and ECU calibration (multiple variants exist within the 3.0 TDI platform).\u003c\/p\u003e\n\u003chr data-start=\"606\" data-end=\"609\"\u003e\n\u003ch2 data-section-id=\"1sn8sr4\" data-start=\"611\" data-end=\"637\"\u003eTechnical Description\u003c\/h2\u003e\n\u003cp data-start=\"638\" data-end=\"760\"\u003eThis NOx sensor is used in diesel exhaust aftertreatment systems to measure nitrogen oxide concentration in exhaust gases.\u003c\/p\u003e\n\u003cp data-start=\"762\" data-end=\"883\"\u003eIt provides real-time data to the engine control unit (ECU) to support SCR system dosing control and emission regulation.\u003c\/p\u003e\n\u003cp data-start=\"885\" data-end=\"1017\"\u003eThe sensor is typically mounted in the exhaust system upstream or downstream of the SCR catalyst depending on vehicle configuration.\u003c\/p\u003e\n\u003chr data-start=\"1019\" data-end=\"1022\"\u003e\n\u003ch2 data-section-id=\"14jk4wc\" data-start=\"1024\" data-end=\"1051\"\u003eSymptoms \/ Fault Codes\u003c\/h2\u003e\n\u003cp data-start=\"1052\" data-end=\"1104\"\u003eCommon symptoms of a failing NOx sensor may include:\u003c\/p\u003e\n\u003cul data-start=\"1106\" data-end=\"1267\"\u003e\n\u003cli data-section-id=\"1e8aa3i\" data-start=\"1106\" data-end=\"1128\"\u003eCheck engine light\u003c\/li\u003e\n\u003cli data-section-id=\"tb88yx\" data-start=\"1129\" data-end=\"1177\"\u003eP2200 \/ P229F fault codes (system dependent)\u003c\/li\u003e\n\u003cli data-section-id=\"6lf0o5\" data-start=\"1178\" data-end=\"1200\"\u003eSCR system warning\u003c\/li\u003e\n\u003cli data-section-id=\"d1njym\" data-start=\"1201\" data-end=\"1243\"\u003eReduced engine performance \/ limp mode\u003c\/li\u003e\n\u003cli data-section-id=\"12mwl3m\" data-start=\"1244\" data-end=\"1267\"\u003eIncreased emissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1269\" data-end=\"1272\"\u003e\n\u003ch2 data-section-id=\"1exb13b\" data-start=\"1274\" data-end=\"1296\"\u003eOE \/ Part Numbers\u003c\/h2\u003e\n\u003cul data-start=\"1297\" data-end=\"1400\"\u003e\n\u003cli data-section-id=\"cu6wbj\" data-start=\"1297\" data-end=\"1311\"\u003e8R0907807L\u003c\/li\u003e\n\u003cli data-section-id=\"6opno4\" data-start=\"1312\" data-end=\"1348\"\u003e5WK97255 (Continental reference)\u003c\/li\u003e\n\u003cli data-section-id=\"1mqb77l\" data-start=\"1349\" data-end=\"1400\"\u003e70680086 (cross reference in some applications)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1402\" data-end=\"1405\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1407\" data-end=\"1415\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"uyxxez\" data-start=\"1417\" data-end=\"1449\"\u003eWhat does a NOx sensor do?\u003c\/h3\u003e\n\u003cp data-start=\"1450\" data-end=\"1564\"\u003eIt measures nitrogen oxide levels in diesel exhaust and sends data to the ECU for emission control in SCR systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"13k5ovo\" data-start=\"1566\" data-end=\"1589\"\u003eWhere is it used?\u003c\/h3\u003e\n\u003cp data-start=\"1590\" data-end=\"1706\"\u003eIt is used in Volkswagen Group 3.0 TDI diesel engines, commonly on Audi Q5 \/ SQ5 platforms and related VAG vehicles.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ep1sic\" data-start=\"1708\" data-end=\"1757\"\u003eAre all 8R0907807L sensors interchangeable?\u003c\/h3\u003e\n\u003cp data-start=\"1758\" data-end=\"1884\"\u003eNot always. Even with the same connector and housing, compatibility depends on ECU calibration and exact system configuration.\u003c\/p\u003e\n\u003ch3 data-section-id=\"j97hsx\" data-start=\"1886\" data-end=\"1917\"\u003eWhat happens if it fails?\u003c\/h3\u003e\n\u003cp data-start=\"1918\" data-end=\"2033\"\u003eIt may trigger emission system warnings, fault codes, and reduced engine performance depending on the SCR strategy.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51863385342084,"sku":"5WK97255\/8R0907807L","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_12787652-f77a-4adb-855d-0dd20b836e8d.jpg?v=1778947050","url":"https:\/\/www.jslook.com\/products\/audi-vw-3-0-tdi-nox-sensor-8r0907807l-5wk97255","provider":"ASHENG","version":"1.0","type":"link"}