{"product_id":"ignition-coil-and-iridium-spark-plugs-for-bmw-x5-2004-2009-4-8l","title":"Ignition Coil and Iridium Spark Plugs for BMW X5 (2004-2009) 4.8L","description":"\u003ch2\u003eDirect-Fit High-Dielectric Ignition Kit for 2004-2009 BMW X5\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores precise secondary ignition firing voltages and stable combustion across all eight cylinders to resolve hesitation and misfire codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock X5 Thermal Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe naturally aspirated 4.8L V8 engine bay generates severe thermal loads that degrade factory coil insulation over time. As the factory rubber boots and primary windings experience continuous heat cycling, the internal epoxy breaks down. This leads to dielectric failure, micro-arcing against the cylinder head, degraded spark kernel energy, rough idling, and active DME misfire fault codes under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit pairs direct-replacement ignition coil packs with fine-wire iridium spark plugs. The coils feature high-conductivity internal copper windings and reinforced thermal-resistant housings to withstand peak operating temperatures without voltage leakage. Matched with erosion-resistant iridium center electrodes, this package ensures lower required firing voltages, consistent arc gap retention, and optimal flame kernel propagation under heavy throttle.\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;\"\u003e2004-2009 BMW X5\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;\"\u003eN62B48 (4.8L V8) \/ E53, E70\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;\"\u003e355 hp \/ 369 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF515, UF522, 12131712233, 12137551260, C1404\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 X5 4.8is (E53 Chassis \/ N62B48 Engine)\u003c\/li\u003e\n  \u003cli\u003e2007-2008 BMW X5 4.8i (E70 Chassis \/ N62B48 Engine)\u003c\/li\u003e\n  \u003cli\u003e2009 BMW X5 xDrive48i (E70 Chassis \/ N62B48 Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eCalibrated specifically for European engine management requirements, these components maintain factory dwell characteristics and resistance ratings. The result is seamless integration with the Bosch\/Siemens DME, eliminating erratic idle hunting and check engine lights while restoring crisp throttle response across the entire powerband.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448849240312,"sku":"DS-EUYWYZB0P","price":141.95,"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-x5-2004-2009-4-8l-1.jpg?v=1788661305","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-bmw-x5-2004-2009-4-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}