{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2012-2015-3-5l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz SLK-Class (2012-2015) 3.5L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2012-2015 Mercedes Benz SLK-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory ignition energy, eliminates misfire codes, and stabilizes idle across all six cylinders by replacing aged coil packs and worn spark plugs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock SLK-Class Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eUnder repeated thermal cycling in the compact R172 engine bay, OEM ignition coil packs suffer dielectric breakdown and internal copper winding degradation. Concurrently, factory spark plug gaps erode over time, increasing electrical resistance. This causes high-RPM misfires, uneven combustion, diagnostic trouble codes (P0300–P0306), and sluggish throttle response in the direct-injected 3.5L engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 6-cylinder ignition service kit features coil-on-plug units wound with high-purity internal copper wiring sealed in thermal-shock-resistant epoxy. Paired with fine-wire iridium spark plugs, the system provides high spark energy at lower required voltages, ensuring instantaneous flame kernel propagation, complete fuel burn, and consistent spark delivery under heavy load.\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\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;\"\u003eM276 3.5L V6 \/ 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;\"\u003e302 hp \/ 273 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;\"\u003eUF733, UF-733, UF741, UF-741, 2769063500, 2769063700\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 SLK-Class (SLK350 Base) 3.5L V6 Gas\u003c\/li\u003e\n  \u003cli\u003e2013 Mercedes-Benz SLK-Class (SLK350 Base) 3.5L V6 Gas\u003c\/li\u003e\n  \u003cli\u003e2014 Mercedes-Benz SLK-Class (SLK350 Base) 3.5L V6 Gas\u003c\/li\u003e\n  \u003cli\u003e2015 Mercedes-Benz SLK-Class (SLK350 Base) 3.5L V6 Gas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to precise European diagnostic tolerances, these ignition components integrate seamlessly with factory ECU timing maps, preventing false misfire flags and maintaining seamless direct-injection performance with zero CEL issues.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50458906755320,"sku":"DS-ECM16OARP","price":197.95,"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-2012-2015-3-5l-1.jpg?v=1788802921","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2012-2015-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}