{"product_id":"ignition-coil-spark-plugs-for-mercedes-benz-g-class-2009-2015-5-5l","title":"Ignition Coil + Spark Plugs for Mercedes Benz G-Class (2009-2015) 5.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Ignition Service Kit for 2009-2015 Mercedes Benz G-Class 5.5L (W463 \/ M273)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Spark Plug Kit replaces worn coil packs and degraded plugs on the 2009-2015 G-Class to eliminate secondary ignition breakdown, resolve cylinder misfires, and restore combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mercedes Benz G-Class Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe naturally aspirated 5.5L V8 in the \u003cstrong\u003eW463\u003c\/strong\u003e chassis operates inside a high-temperature, confined engine bay prone to severe thermal soak. Over time, heat cycles break down the dielectric insulation inside factory coil packs, while the silicone spark plug boots harden and micro-crack. This causes high-voltage current to leak to the cylinder head under load, triggering \u003cstrong\u003eP0300-P0308\u003c\/strong\u003e misfire trouble codes. Simultaneously, factory spark plug gaps widen from standard electrode erosion, forcing the coils to work harder, increasing primary dwell temps, and degrading fuel economy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis overhaul kit provides a matched set of 8 coil-on-plug assemblies paired with 8 fine-wire \u003cstrong\u003eNGK LKR7BGP\u003c\/strong\u003e platinum spark plugs. Built with high-grade copper windings and premium epoxy potting, each coil resists heat-induced impedance drift and insulation puncture. The platinum electrode configuration lowers the ionization voltage threshold, providing immediate flame front propagation and cleaner burns. Installing both components simultaneously ensures uniform resistance across all cylinders, protecting upstream catalytic converters and restoring original throttle linearity.\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;\"\u003e2009-2015 Mercedes Benz G-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;\"\u003eM273 5.5L V8 \/ W463\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;\"\u003e382 hp \/ 391 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;\"\u003e0001501980, 0001502680, 0001502780, 2729060060, UF535\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\u003e2009-2015 Mercedes Benz G-Class G550 5.5L V8 (M273 Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the W463 G-Class?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2009-2015 Mercedes Benz G-Class equipped with the M273 5.5L naturally aspirated V8 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the proper spark plug installation torque?\u003c\/strong\u003e\u003cbr\u003e Torque the spark plugs to factory specification (20 to 25 Nm \/ 15 to 18 lb-ft) into dry aluminum threads without anti-seize compound.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eMaintaining the \u003cstrong\u003eW463\u003c\/strong\u003e electrical balance requires tight resistance parameters compatible with Bosch ME9.7 engine management. This kit guarantees clean secondary ignition output with zero false misfire codes or ECU diagnostic communication faults under heavy engine loads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50625843003640,"sku":"DS-ENUV0XJSL","price":248.95,"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-g-class-2009-2015-5-5l-1.jpg?v=1790352187","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-mercedes-benz-g-class-2009-2015-5-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}