Ignition Coil + Iridium Spark Plugs for Mercedes Benz G-Class (2013-2016) 5.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2013-2016 Mercedes Benz G-Class 5.5L (W463 / M157)

What it Does: The ignition coil and double iridium spark plug kit delivers high-dielectric spark energy to the combustion chambers of the 2013-2016 G-Class to eliminate high-boost misfires and restore factory throttle response.

The Stock Mercedes Benz G-Class Thermal Breakdown and Ignition Blowout

The twin-turbocharged 5.5-liter M157 engine in the W463 G63 AMG operates under extreme cylinder pressures and tight under-hood thermal constraints. Factory ignition coils deteriorate over time due to severe thermal cycling trapped inside the hot V configuration, degrading the internal copper windings and cracking the epoxy resin potting. Concurrently, factory spark plug gaps expand as electrode erosion occurs under elevated boost levels. This combination results in spark blowout, rough cold-start idling, unburned hydrocarbon buildup, and diagnostic trouble codes such as P0300 through P0308 under heavy load.

The Engineering Solution

This comprehensive ignition service package restores combustion integrity using 8 high-output coil-on-plug units paired with pre-gapped double iridium spark plugs. The ignition coils utilize premium magnetic core laminations and high-temperature silicone boots rated to resist dielectric punch-through past 35kV. Matching them with fine-wire iridium center electrodes and platinum ground pads reduces the required firing voltage, providing consistent flame kernel development across all boost thresholds without taxing the factory ECU drivers.

Technical Specifications

Compatibility

• 2013 Mercedes Benz G-Class G63 AMG 5.5L V8 Biturbo (M157)
• 2014 Mercedes Benz G-Class G63 AMG 5.5L V8 Biturbo (M157)
• 2015 Mercedes Benz G-Class G63 AMG 5.5L V8 Biturbo (M157)
• 2016 Mercedes Benz G-Class G63 AMG 5.5L V8 Biturbo (M157)

Frequently Asked Questions

Does this fit the W463 G-Class?
Yes, this is a direct fit for the 2013-2016 Mercedes Benz G-Class equipped with the M157 engine.

Should spark plugs and ignition coils be replaced at the same interval on the M157?
Yes, replacing both components simultaneously prevents worn plugs from overloading new coils and eliminates secondary misfire diagnosis cycles.

The Mercedes Benz Precision Standard

Engineered to meet stringent European performance thresholds, this kit ensures complete diagnostic compliance with zero check-engine lights while maintaining peak twin-turbocharged V8 delivery.