{"product_id":"ignition-coil-and-iridium-spark-plugs-for-audi-a4-2003-2005-3-0l","title":"Ignition Coil and Iridium Spark Plugs for Audi A4 (2003-2005) 3.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2003-2005 Audi A4\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores direct primary-to-secondary ignition voltage and stabilizes combustion efficiency across all six cylinders to eliminate misfires and rough idling.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock A4 B6 Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe Audi 3.0L 30-valve AVK V6 platform subjects coil-on-plug packs to intense thermal soak deep within the cylinder head valve covers. Over time, factory coil insulation degrades, causing primary and secondary copper windings to experience high-voltage arc-through. This breakdown leads to intermittent cylinder misfires, hesitation under load, poor fuel atomization, and flashing check engine lights that threaten catalytic converter longevity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 6-cylinder refresh kit features reinforced coil-on-plug assemblies manufactured with high-grade copper primary windings and heavy-duty dielectric epoxy potting to withstand continuous thermal cycling. Paired with fine-wire iridium core spark plugs, the system lowers required ionization voltage, promotes stable flame kernel propagation, and maintains exact electrode gap integrity under sustained high-RPM operation.\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;\"\u003e2003-2005 Audi A4 \/ A4 Quattro 3.0L\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;\"\u003e3.0L 30v V6 (AVK) \/ B6 (Typ 8E\/8H)\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;\"\u003e220 hp \/ 221 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;\"\u003eUF483, UF-483\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2003 Audi A4 3.0L V6 (Sedan, Avant, Cabriolet)\u003c\/li\u003e\n  \u003cli\u003e2004 Audi A4 3.0L V6 (Sedan, Avant, Cabriolet)\u003c\/li\u003e\n  \u003cli\u003e2005 Audi A4 3.0L V6 (Sedan, Avant, Cabriolet)\u003c\/li\u003e\n  \u003cli\u003e2003-2005 Audi A4 Quattro 3.0L V6 (All Trims)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact German OE electrical tolerances, this ignition service kit guarantees precise spark timing, smooth idle recovery, and zero diagnostic trouble codes across factory Motronic engine management systems.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50455209869560,"sku":"DS-EJ51BT6ES","price":128.95,"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-audi-a4-2003-2005-3-0l-1.jpg?v=1788743037","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-audi-a4-2003-2005-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}