{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2012-2015-1-8l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz SLK-Class (2012-2015) 1.8L","description":"\u003ch2\u003eDirect-Replacement Ignition Kit for 2012-2015 Mercedes Benz SLK-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory ignition energy and combustion stability across all four cylinders by replacing worn coil-on-plug assemblies and fouled spark plugs with high-dielectric coils and fine-wire iridium plugs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock SLK-Class Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eUnder continuous thermal cycling and forced-induction cylinder pressures, factory M271 ignition coils suffer from dielectric insulation degradation and internal copper winding fatigue. Over time, micro-arcing and boot dry-rot lead to secondary voltage leakage, manifesting as hesitation under load, erratic idle, and cylinder-specific misfire DTCs (P0300–P0304) when the spark is blown out under boost.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service kit features four coil-on-plug assemblies manufactured with high-grade magnetic steel cores, thermal-resistant epoxy resin encapsulation, and high-conductivity copper primary and secondary windings. Paired with fine-wire iridium spark plugs engineered with laser-welded center electrodes, this package delivers consistent 30kV+ discharge capability, resisting quench under cylinder boost pressures and maintaining precise ignition timing without throwing ECU 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;\"\u003e2012-2015 Mercedes Benz SLK-Class (SLK250)\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;\"\u003e1.8L Turbo Inline-4 (M271) \/ R172\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;\"\u003e201 hp \/ 229 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Numbers \/ Interchange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF658, UF-658, 0001502580, 0040100072, C931, ILFR6B, 6481, A0001502580, 0040100077, GN10552\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2012 Mercedes-Benz SLK250 Base 1.8L L4 Gas (R172)\u003c\/li\u003e\n  \u003cli\u003e2013 Mercedes-Benz SLK250 Base 1.8L L4 Gas (R172)\u003c\/li\u003e\n  \u003cli\u003e2014 Mercedes-Benz SLK250 Base 1.8L L4 Gas (R172)\u003c\/li\u003e\n  \u003cli\u003e2015 Mercedes-Benz SLK250 Base 1.8L L4 Gas (R172)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet stringent European engine management parameters, these components ensure direct plug-and-play integration with factory harnesses, preventing secondary ignition noise and eliminating Check Engine Lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50451861438712,"sku":"DS-EFDDIKX9L","price":99.95,"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-mercedes-benz-slk-class-2012-2015-1-8l-1.jpg?v=1788711321","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2012-2015-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}