{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2001-2004-2-3l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz SLK-Class (2001-2004) 2.3L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2001-2004 Mercedes Benz SLK-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores complete secondary ignition energy and consistent spark delivery under boost for the supercharged 2.3L M111 powertrain.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock SLK-Class Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThermal fatigue in the tightly packaged R170 engine bay degrades OEM coil pack insulation over time, resulting in dielectric breakdown and internal resistance drift. Under the high cylinder pressures of the supercharged 2.3L engine, aged coils and eroded spark plugs cause spark blowout, hesitation under acceleration, rough idle, and intermittent misfire trouble codes (P0300 through P0304).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete ignition overhaul kit includes four direct-replacement coil-on-plug units built with premium copper primary and secondary windings for high energy saturation and rapid discharge. Paired with four fine-wire iridium core spark plugs, this setup reduces the required breakdown voltage across the gap, optimizes flame front propagation, and resists thermal erosion under forced-induction combustion conditions.\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;\"\u003e2001-2004 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;\"\u003eM111.983 (2.3L Kompressor) \/ R170\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;\"\u003e192 hp \/ 207 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;\"\u003eUF536, UF-536\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2001 Mercedes-Benz SLK230 Kompressor 2.3L L4 Supercharged (R170)\u003c\/li\u003e\n  \u003cli\u003e2002 Mercedes-Benz SLK230 Kompressor 2.3L L4 Supercharged (R170)\u003c\/li\u003e\n  \u003cli\u003e2003 Mercedes-Benz SLK230 Kompressor 2.3L L4 Supercharged (R170)\u003c\/li\u003e\n  \u003cli\u003e2004 Mercedes-Benz SLK230 Kompressor 2.3L L4 Supercharged (R170)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to match factory electrical resistance and dwell-time profiles, ensuring seamless communication with the factory Bosch ECU without triggering false misfire codes or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50458912686328,"sku":"DS-EZ2VOOI37","price":109.95,"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-2001-2004-2-3l-1.jpg?v=1788803303","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slk-class-2001-2004-2-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}