{"product_id":"o2-oxygen-sensor-upstream-for-audi-q3-2015-2018-2-0l","title":"O2 Oxygen Sensor Upstream for Audi Q3 (2015-2018) 2.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream Wideband Oxygen Sensor for 2015-2018 Audi Q3 (8U)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The upstream wideband oxygen sensor measures pre-catalytic exhaust air-fuel ratios on the 2015-2018 Audi Q3 to maintain precise closed-loop fueling and eliminate check engine codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Audi Q3 Thermal Degradation Problem\u003c\/h3\u003e\n\u003cp\u003eThe factory upstream lambda sensor on the \u003cstrong\u003eEA888\u003c\/strong\u003e 2.0T engine operates in a severe thermal environment immediately downstream of the turbocharger. Over extended heat cycles, the internal planar zirconia element suffers from carbon fouling and chemical contamination. This degradation causes sensor response latency, preventing the ECU from calculating accurate short-term fuel trims (STFT). The resulting AFR imbalance leads to erratic idle, hesitation under throttle tip-in, decreased fuel economy, and persistent diagnostic fault codes including \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and catalytic efficiency warnings.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to match factory signal parameters, this wideband air-fuel ratio sensor restores real-time closed-loop stoichiometry. Built with a dual-layer stainless steel protective shield, it guards the internal ceramic sensing element against soot accumulation and thermal shock. The unit features precision-machined threads pre-coated with anti-seize compound for clean installation into the factory downpipe bung, while the heat-resistant insulated pigtail and OEM-pinned connector eliminate the need for wire splicing or pin repinning.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Upstream Oxygen Sensor\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: solid font-size: min-width:\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;\"\u003e2015-2018 Audi Q3\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;\"\u003e2.0L TFSI EA888 \/ 8U\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;\"\u003e200 hp \/ 207 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;\"\u003e234-5034, 06J906262M, 95860617220, 95860613420, 24348, 250-25049, 17169, OS5526, 95860613400\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\u003e2015 Audi Q3 2.0L (8U)\u003c\/li\u003e\n  \u003cli\u003e2016 Audi Q3 2.0L (8U)\u003c\/li\u003e\n  \u003cli\u003e2017 Audi Q3 2.0L (8U)\u003c\/li\u003e\n  \u003cli\u003e2018 Audi Q3 2.0L (8U)\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 8U Q3?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2015-2018 Audi Q3 equipped with the \u003cstrong\u003eEA888\u003c\/strong\u003e 2.0L engine. \u003cstrong\u003eVerify sensor positions and connectors for your exact engine before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eShould I clear engine codes after installing this sensor?\u003c\/h4\u003e\n\u003cp\u003eYes, clear all diagnostic trouble codes using an OBD-II scanner and execute a complete drive cycle to reset ECU fuel trim adaptations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEuropean direct-injection engines require tight air-fuel tolerances; restoring your wideband sensing circuit maintains proper combustion chamber temperatures and prevents unburned fuel from ruining your catalytic converter.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67911066321144,"sku":"DS-EZ17LBNUS","price":75.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-for-audi-q3-2015-2018-2-0l-1.jpg?v=1793394445","url":"https:\/\/performancechiptuning.com\/de\/products\/o2-oxygen-sensor-upstream-for-audi-q3-2015-2018-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}