{"product_id":"ignition-coil-and-iridium-spark-plugs-for-bmw-x3-2004-2010-2-5l","title":"Ignition Coil and Iridium Spark Plugs for BMW X3 (2004-2010) 2.5L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2004-2010 BMW X3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil-on-plug packs and worn spark plugs with high-dielectric copper-wound coils and fine-wire iridium plugs to restore proper secondary ignition voltage, smooth idle, and complete cylinder combustion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock X3 Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe inline-6 engines in the BMW E83 chassis run high cylinder head temperatures that accelerate thermal fatigue in factory coil boots and internal insulation. Over time, heat cycles cause microscopic cracks in the potting epoxy, inducing secondary voltage arc-through, intermittent misfires under load, and rough cold starts. Simultaneously, standard nickel or platinum plugs erode at the electrode gap, increasing the required ionization voltage and straining aging coil drivers.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive 6-cylinder tune-up kit utilizes direct-replacement coil-on-plug assemblies engineered with high-conductivity oxygen-free copper primary and secondary windings, vacuum-poured epoxy insulation, and durable silicone dielectric boots. Paired with fine-wire iridium-tipped center electrodes with laser-welded ground pads, this kit provides a lower firing voltage threshold, high resistance to thermal fouling, and reliable combustion up to the redline without triggering ECU misfire fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2004-2010 BMW X3 2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eM54B25 \/ N52B25 \/ E83\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e184 hp \/ 175 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number \/ Interchange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF515, UF-515, UF522, UF-522\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004-2006 BMW X3 2.5i (E83, 2.5L L6 Gas)\u003c\/li\u003e\n  \u003cli\u003e2007-2010 BMW X3 2.5si \/ xDrive25i (E83, 2.5L L6 Gas)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet tight European OBD-II tolerances, these ignition coils match factory primary resistance and dwell curves to ensure no check engine lights, hesitation, or DME driver stress.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50451970982136,"sku":"DS-EX548FAOH","price":101.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-bmw-x3-2004-2010-2-5l-1.jpg?v=1788715198","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-bmw-x3-2004-2010-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}