Ignition Coil and Iridium Spark Plugs for Mercedes Benz SLK-Class (2006-2011) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2006-2011 Mercedes Benz SLK-Class

What it Does: Restores factory ignition energy and combustion efficiency across all six cylinders by replacing degraded ignition coils and worn plugs with matched, high-dielectric components.

The Stock SLK-Class Ignition Degradation

The M272 3.0L V6 housed in the R171 chassis operates in tightly packaged engine bay conditions prone to severe heat-soak. Over extended thermal cycles, the factory coil-on-plug epoxy insulation deteriorates, resulting in internal secondary winding breakdown, dielectric arcing, and micro-cracking along the boot. Concurrently, standard electrode erosion widens the spark gap, forcing the aged coils to demand higher firing voltages. This cascade triggers intermittent cylinder misfires (DTC codes P0300 through P0306), unburnt fuel loading downstream catalytic converters, and rough idle vibration.

The Engineering Solution

This comprehensive refresh kit provides six precision-wound ignition coils engineered with reinforced copper primary and secondary windings encased in high-grade potting resin to resist thermal stress and electrical breakdown. Coupled with six fine-wire iridium spark plugs, the package delivers consistent high-voltage discharge and focused flame kernel propagation with lower required breakdown voltage. Direct-fit blade terminals and reinforced silicone boots prevent moisture intrusion and high-voltage flashover, stabilizing idle and restoring clean throttle response.

Technical Specifications

Compatibility

• 2006-2008 Mercedes-Benz SLK280 3.0L V6 (R171)
• 2009-2011 Mercedes-Benz SLK300 3.0L V6 (R171)
• Interchange: UF535, UF-535, 0001501980, 0001502680, 0001502780, 2729060060, 19005267, 68011844AA, 52-2103, E1035, 07C905, 07C905115

The Mercedes Benz Precision Caliber

Engineered to meet stringent European OBD-II parameters, this ignition kit maintains factory dwell timings and eliminates hesitation without throwing fault codes or check engine lights.