Ignition Coil and Iridium Spark Plugs for Mercedes Benz E-Class (2006-2011) 3.5L

Precision Direct-Fit Ignition Coil & Iridium Spark Plug Kit for 2006-2011 Mercedes Benz E-Class

Primary Function: Restores factory ignition energy, eliminates cylinder misfires, and stabilizes idle across the 3.5L M272 V6 engine platform.

The Stock E-Class Ignition Breakdown

Under continuous operating temperatures exceeding 200°F within the engine bay, factory M272 coil-on-plug units suffer from dielectric breakdown of the internal epoxy insulation and microscopic fractures in the primary copper windings. Over time, high thermal cycling causes voltage leakage to ground, leading to intermittent spark loss, rough idle, catalytic converter fouling, and persistent diagnostic trouble codes (P0300–P0306). Worn factory plugs exacerbate this failure by increasing electrical resistance across degraded electrode gaps.

The Engineering Solution

This 6-cylinder refresh kit utilizes high-grade electrolytic copper windings paired with high-dielectric PBT housing resin to resist heat soak and voltage arc-over. The included iridium-tipped spark plugs feature fine-wire center electrodes for lowered firing voltage requirements, superior thermal dissipation, and consistent spark kernel stability under varying load conditions. Direct-fit blade terminals and silicone boots ensure complete weather-sealed connectivity without modifying the factory wiring harness.

Technical Specifications

Compatibility

• 2006-2009 Mercedes-Benz E350 3.5L V6 (W211 Sedan / Wagon)
• 2010-2011 Mercedes-Benz E350 3.5L V6 (W212 Sedan / Wagon / Coupe / Cabriolet)
• 2006-2011 Mercedes-Benz E350 4MATIC 3.5L V6 (AWD Models)

The Mercedes Benz Engineering Caliber

Engineered to meet precise European electronic tolerances, this ignition service package restores rapid secondary circuit rise times and clean combustion, eliminating rough running conditions and check engine lights without ECM recalibration.