{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-c-class-2012-2015-1-8l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz C-Class (2012-2015) 1.8L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2012-2015 Mercedes Benz C-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory secondary ignition output and precise combustion timing by replacing degraded coil packs and worn spark plugs across all four cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock C-Class Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe turbocharged direct-injected M271 engine generates elevated underhood temperatures and high cylinder pressures that rapidly deteriorate factory coil boots and primary\/secondary windings. Over time, thermal cycling causes internal dielectric breakdown, micro-arcing, and carbon tracking. Paired with eroded factory spark plug electrode gaps, this deterioration leads to high-rpm misfires, rough idle harmonics, sluggish boost response, and intermittent P0300-P0304 fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service kit features four high-dielectric coil-on-plug assemblies engineered with high-conductivity internal copper windings and thermoplastic housings resistant to thermal breakdown. Direct-fit OE blade terminals ensure zero harness resistance. Paired with four fine-wire iridium spark plugs (ILFR6B \/ 6481), the assembly provides superior spark kernel propagation, consistent flame front expansion, and reliable direct-injection ignition under high boost loads.\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 C-Class (C250)\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 M271 \/ W204, C204\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 (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;\"\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\u003e2012-2015 Mercedes-Benz C250 Base Sedan \/ Coupe (1.8L L4 Turbo M271)\u003c\/li\u003e\n  \u003cli\u003e2012-2014 Mercedes-Benz C250 Luxury Sedan (1.8L L4 Turbo M271)\u003c\/li\u003e\n  \u003cli\u003e2012-2015 Mercedes-Benz C250 Sport Sedan \/ Coupe (1.8L L4 Turbo M271)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes-Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet strict European electrical specifications, this ignition kit delivers OE-matched dwell times and primary resistance values to prevent ECU fault triggers, maintain closed-loop fuel trims, and eliminate check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50451861242104,"sku":"DS-EYNR422KJ","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-c-class-2012-2015-1-8l-1.jpg?v=1788711256","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-c-class-2012-2015-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}