{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slc-class-2017-2019-2-0l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz SLC-Class (2017-2019) 2.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2017-2019 Mercedes Benz SLC-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory ignition energy, stabilizes secondary voltage delivery, and resolves high-load misfires on turbocharged 2.0L engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock SLC-Class Ignition Thermal Degradation\u003c\/h3\u003e\n\u003cp\u003eThe forced-induction M274 engine in the R172 chassis subjects factory coil-on-plug boots and internal windings to intense underhood thermal cycling. Over time, high combustion chamber pressures erode factory spark plug electrodes while heat soak degrades the primary and secondary epoxy insulation in the OEM coils. This leads to dielectric breakdown, high-RPM misfires under boost, rough idle conditions, and unburnt hydrocarbon buildup that triggers premature catalyst degradation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service kit features direct-replacement ignition coils engineered with high-conductivity copper windings and heat-resistant silicone boots to eliminate arc-through under load. Paired with fine-wire iridium spark plugs, the system provides exceptional ignitability, reduced quenching, and stable flame propagation. The precision-gapped iridium center electrodes withstand extreme combustion temperatures, maintaining a consistent spark kernel across the entire rev range.\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;\"\u003e2017-2019 Mercedes Benz SLC-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;\"\u003eM274 2.0L Turbo \/ 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;\"\u003e241 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;\"\u003eUF734, UF820, A2749060700, A2749061400, 2749060700, 2749061400, 28400714\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2017 Mercedes-Benz SLC 300 Base 2.0L L4 - Gas\u003c\/li\u003e\n  \u003cli\u003e2018 Mercedes-Benz SLC 300 Base 2.0L L4 - Gas\u003c\/li\u003e\n  \u003cli\u003e2019 Mercedes-Benz SLC 300 Base 2.0L L4 - Gas\u003c\/li\u003e\n  \u003cli\u003e2019 Mercedes-Benz SLC 300 Final Edition 2.0L L4 - Gas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes-Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to strict European OBD-II tolerances, this ignition kit guarantees zero check-engine lights, rapid throttle response, and smooth idle stability without requiring ECU recalibration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50449149100280,"sku":"DS-E1K0Q92S5","price":202.95,"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-slc-class-2017-2019-2-0l-1.jpg?v=1788667937","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-slc-class-2017-2019-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}