{"product_id":"ignition-coil-spark-plugs-for-mercedes-benz-c-class-1997-3-6l","title":"Ignition Coil + Spark Plugs for Mercedes Benz C-Class (1997) 3.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output Ignition Coil and Spark Plug Kit for Mercedes Benz C-Class (W202)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Spark Plug Kit restores primary and secondary ignition efficiency on the Mercedes Benz C-Class to eliminate high-load misfires and stabilize combustion across all cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mercedes Benz C-Class Thermal Breakdown\u003c\/h3\u003e\n\u003cp\u003eOn the \u003cstrong\u003eW202\u003c\/strong\u003e chassis powered by the hand-assembled \u003cstrong\u003eM104.941\u003c\/strong\u003e 3.6L inline-six, thermal saturation beneath the top cylinder head cover rapidly degrades factory ignition coils. Operating on a waste-spark setup, each coil fires twice per cycle—doubling the electrical and thermal duty cycle compared to conventional sequential setups. Over decades of heat soak, factory epoxy insulation suffers dielectric breakdown, leading to carbon tracking, erratic dwell timing, spark blowout under load, and persistent P0300–P0306 misfire codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive refresh kit provides three precision-wound ignition coils alongside six matched spark plugs to restore factory energy transfer. The replacement coils feature vacuum-potted epoxy insulation and high-conductivity copper primary and secondary windings engineered to resist thermal degradation and internal shorting. Combined with spark plugs tailored to factory heat-range and resistance specifications, this direct-replacement assembly provides steady secondary voltage, ensuring crisp throttle response, clean combustion chamber burn, and smooth idle across all companion cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eMercedes Benz C-Class\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eM104.941\u003c\/strong\u003e (3.6L AMG) \/ \u003cstrong\u003eW202\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e268 hp \/ 280 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e0221506444\u003c\/strong\u003e, \u003cstrong\u003eUF-137\u003c\/strong\u003e, 12736, C1213, 880047, 133813, 22058\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1997 Mercedes Benz C36 AMG 3.6L L6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the W202 C-Class?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1997 Mercedes Benz C-Class equipped with the \u003cstrong\u003eM104.941\u003c\/strong\u003e 3.6L engine.\u003c\/p\u003e\n\n\u003ch4\u003eWhy does the kit include three ignition coils for a six-cylinder engine?\u003c\/h4\u003e\n\u003cp\u003eThe 3.6L inline-six utilizes a waste-spark ignition configuration where three dual-tower coils each fire two synchronized cylinders simultaneously.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eManufactured to strict European engineering tolerances, this direct-fit ignition kit ensures uncompromised combustion synchronization without triggering check engine lights or requiring ECU recalibration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524645880056,"sku":"DS-EUX1N67A7","price":90.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-mercedes-benz-c-class-1997-3-6l-1.jpg?v=1790461380","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-mercedes-benz-c-class-1997-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}