{"product_id":"o2-oxygen-sensor-upstream-downstream-for-bmw-x3-x5-2007-2010-3-0l","title":"O2 Oxygen Sensor Upstream Downstream for BMW X3 X5 (2007-2010) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Replacement Kit for 2007-2010 BMW X3, X5 (E83 \/ E70)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 4-piece oxygen sensor kit monitors pre- and post-catalyst exhaust gas composition on the 2007-2010 BMW X3 and X5 3.0L to restore target air-fuel ratios, optimize engine efficiency, and eliminate check engine warnings.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock BMW X3, X5 Lambda Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eN52\u003c\/strong\u003e platform suffer from progressive sensor poisoning, soot accumulation, and ceramic aging after high-heat duty cycles. As the response rates slow, the engine management system relies on biased air-fuel data, causing catalytic trim drift, sluggish throttle response, elevated fuel consumption, and recurring diagnostic trouble codes such as P0420, P0430, or internal DME lambda monitoring faults.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive upstream and downstream kit utilizes advanced planar ceramic sensing elements with fast-acting integrated heaters to achieve rapid operating temperatures and instantaneous voltage switching. Constructed with a 304 stainless steel housing, dual-layer protective shielding, and factory-pinned harness connectors, these sensors deliver OE-level signal accuracy to the \u003cstrong\u003eMSV80 DME\u003c\/strong\u003e without requiring wire splicing or repinning.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2x Upstream Oxygen Sensors (Pre-Catalytic Converter)\u003c\/li\u003e\n  \u003cli\u003e2x Downstream Oxygen Sensors (Post-Catalytic Converter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2007-2010 BMW X3, X5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN52B30 (3.0L I6) \/ \u003cstrong\u003eE83\u003c\/strong\u003e, \u003cstrong\u003eE70\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e260 hp \/ 225 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e234-4875\u003c\/strong\u003e, \u003cstrong\u003e234-4876\u003c\/strong\u003e, \u003cstrong\u003e234-4892\u003c\/strong\u003e, \u003cstrong\u003e234-5091\u003c\/strong\u003e, \u003cstrong\u003e234-5096\u003c\/strong\u003e, \u003cstrong\u003e234-5107\u003c\/strong\u003e, \u003cstrong\u003e234-5138\u003c\/strong\u003e, \u003cstrong\u003e234-5139\u003c\/strong\u003e, \u003cstrong\u003e2345091\u003c\/strong\u003e, \u003cstrong\u003e2344875\u003c\/strong\u003e, \u003cstrong\u003e2344876\u003c\/strong\u003e, \u003cstrong\u003e2344892\u003c\/strong\u003e, \u003cstrong\u003e2345096\u003c\/strong\u003e, \u003cstrong\u003e2345107\u003c\/strong\u003e, \u003cstrong\u003e2345138\u003c\/strong\u003e, \u003cstrong\u003e2345139\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2010 BMW X3 (E83) 3.0si \/ xDrive30i 3.0L N52\u003c\/li\u003e\n  \u003cli\u003e2007-2010 BMW X5 (E70) 3.0si \/ xDrive30i 3.0L N52\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the E83 and E70 X3, X5?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2010 BMW X3 and X5 equipped with the \u003cstrong\u003eN52\u003c\/strong\u003e 3.0L naturally aspirated inline-six engine. \u003cstrong\u003eDoes not fit turbocharged N54\/N55 or V8 models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eShould DME adaptation values be reset after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, resetting lambda and fuel trim adaptations using an OBD-II diagnostic tool allows the engine computer to immediately map the baseline values of new sensors.\u003c\/p\u003e\n\n\u003ch3\u003eThe BMW Calibration Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand strict European emissions tolerances, this 4-piece sensor array restores precision stoichiometric closed-loop control without generating unwanted check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551471239416,"sku":"DS-E65WY9IBZ","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-bmw-x3-x5-2007-2010-3-0l-1.jpg?v=1790796797","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-upstream-downstream-for-bmw-x3-x5-2007-2010-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}