Ignition Coil and Iridium Spark Plugs for Mercedes Benz S-Class (2010-2013) 3.5L

Direct-Fit High-Output Ignition Coil and Iridium Spark Plug Kit for 2010-2013 Mercedes Benz S-Class

Direct-fit ignition overhaul kit: Replaces degraded factory coil packs and fouled spark plugs to eliminate misfires, stabilize idle RPM, and restore precise secondary ignition voltage across all six cylinders.

The Stock S-Class Ignition Degradation

Factory ignition coils in the M272 V6 endure extreme thermal cycles inside the tightly packaged W221 engine bay. Over time, heat-induced micro-fracturing in the factory epoxy insulation leads to voltage arcing, secondary winding resistance drift, and plug boot breakdown. This causes intermittent cylinder misfires, unburned fuel entering the catalytic converters, sluggish throttle response, and stored P0300-series trouble codes.

The Engineering Solution

This comprehensive 6-cylinder ignition kit restores factory combustion efficiency using heavy-duty coil-on-plug units wound with premium high-conductivity copper and sealed with high-dielectric epoxy. Paired with laser-welded fine-wire iridium spark plugs, the system requires lower firing voltage, enhances flame kernel propagation, prevents carbon fouling, and guarantees dependable cold starts under high engine loads.

Technical Specifications

Compatibility

• 2010-2013 Mercedes-Benz S-Class (W221) S400 Hybrid / S350 3.5L V6
• Interchange Part Numbers: 0001501980, 0001502680, 0001502780, 2729060060, UF535, UF-535, 19005267, 68011844AA, 52-2103, E1035, 07C905, 07C905115

The Mercedes Benz Precision Standard

Engineered to exact OEM resistance and dwell specifications, this ignition system integrates seamlessly with Mercedes-Benz Bosch ME ECU management, delivering smooth European power delivery without triggering false CEL warnings or adaptation errors.