{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-r-class-2006-2011-3-5l","title":"Ignition Coil and Iridium Spark Plugs for Mercedes Benz R-Class (2006-2011) 3.5L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2006-2011 Mercedes-Benz R-Class\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This complete 6-cylinder ignition service kit replaces deteriorated coil-on-plug units and worn spark plugs to eliminate misfires, restore lost combustion efficiency, and stabilize idle operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock R-Class Secondary Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe M272 engine in the W251 chassis generates substantial thermal load in the cylinder heads. Over extended heat cycles, factory coil-on-plug boots develop micro-fissures and primary\/secondary insulation breaks down. This insulation degradation causes high-voltage dielectric leakage, spark blow-out under load, rough idling, hesitation, and recurring P0300-P0306 misfire trouble codes as plug gaps erode.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis kit features 6 heavy-duty ignition coils manufactured with high-grade copper primary and secondary windings, housed in heat-resistant, impact-absorbing thermoplastic cases to prevent thermal breakdown. Coupled with 6 fine-wire iridium spark plugs providing high thermal conductivity and erosion resistance, this setup ensures consistent millijoule spark energy, fast flame-kernel propagation, and full OE-spec electronic signaling without ECU communication faults.\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;\"\u003e2006-2011 Mercedes-Benz R-Class (R350)\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;\"\u003e3.5L V6 (M272) \/ W251\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;\"\u003e268 hp \/ 258 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;\"\u003eUF535, 5C1748, C1691, E1085, IC615, IC665, 0001501980, 0001502680, 0001502780, 2729060060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2006-2011 Mercedes-Benz R-Class (W251) R350 3.5L V6 (M272 Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mercedes-Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact European electronic tolerances, this ignition package maintains stable secondary circuit resistance to protect sensitive ME-SFI engine control units, guaranteeing zero check-engine lights and immediate, smooth throttle response across all operating ranges.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50449154539768,"sku":"DS-E9NMC5VEC","price":110.95,"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-r-class-2006-2011-3-5l-1.jpg?v=1788668124","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-mercedes-benz-r-class-2006-2011-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}