{"product_id":"ignition-coil-and-iridium-spark-plugs-for-bmw-x4-2015-2018-3-0l","title":"Ignition Coil and Iridium Spark Plugs for BMW X4 (2015-2018) 3.0L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Service Kit for 2015-2018 BMW X4\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory ignition coils and worn plugs to eliminate high-boost misfires, stabilize idle fluctuations, and restore precise secondary ignition voltage across all six cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock X4 Ignition System Fatigue\u003c\/h3\u003e\n\u003cp\u003eThe turbocharged inline-six in the F26 platform generates intense thermal loads and elevated cylinder pressures. Over time, OEM coil housings suffer dielectric breakdown and thermal fatigue, causing micro-arcing and internal winding resistance shifts. Simultaneously, standard plug electrodes erode under boost, widening the gap and forcing the secondary ignition circuit to demand higher breakdown voltage. This manifests as cold-start stuttering, hesitation under load, and DME misfire trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service pack pairs six high-dielectric coil assemblies with matched fine-wire iridium spark plugs. The coils feature reinforced internal copper windings, heat-resistant silicone boots, and factory-matched blade terminals that resist thermal saturation. The iridium plugs utilize a laser-welded fine-wire center electrode and nickel-alloy ground design to reduce voltage requirements, lower quench effects, and ensure stable flame-front propagation under peak boost.\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;\"\u003e2015-2018 BMW X4 (3.0L L6)\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;\"\u003eN55 Turbocharged I6 \/ F26\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;\"\u003e300–355 hp \/ 300–343 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, 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\u003e2015-2018 BMW X4 xDrive35i (3.0L Turbo Inline-6 N55)\u003c\/li\u003e\n  \u003cli\u003e2016-2018 BMW X4 M40i (3.0L Turbo Inline-6 N55)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet stringent European onboard diagnostic tolerances, this matched ignition kit ensures factory dwell compatibility, smooth idle, and error-free operation without triggering DME shadow codes or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50451966722296,"sku":"DS-EL8VPVV1E","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-x4-2015-2018-3-0l-1.jpg?v=1788715073","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-bmw-x4-2015-2018-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}