Ignition Coil and Iridium Spark Plugs for Mercedes Benz CLK-Class (2006-2009) 3.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2006-2009 Mercedes Benz CLK-Class

What it Does: Restores factory ignition performance and eliminates cylinder misfires on the M272 V6 engine by replacing thermal-fatigued coils and worn plugs with high-dielectric coil-on-plug packs and fine-wire iridium spark plugs.

The Stock CLK-Class Ignition Degradation

Under-hood thermal cycling in the tightly packaged C209/A209 engine bay severely degrades factory ignition components over time. The OEM coil packs suffer from epoxy breakdown and insulation micro-fracturing due to sustained high cylinder head temperatures. This leads to secondary voltage leakage, intermittent arcing, and weak spark energy across the rev range. Combined with widened spark plug gaps from electrode erosion, the M272 engine develops hesitation under load, erratic idle harmonics, unburnt fuel wash, and recurring P0300 through P0306 DTC misfire fault codes.

The Engineering Solution

This comprehensive ignition service kit restores peak combustion efficiency with six reinforced coil-on-plug units and six fine-wire iridium spark plugs. The ignition coils feature high-conductivity internal copper windings insulated with premium thermal-resistant epoxy to prevent high-voltage dielectric punch-through. Factory-spec blade terminals ensure a positive, zero-resistance electrical connection. Paired with ultra-durable iridium-tipped spark plugs that resist spark erosion and lower required firing voltages, this kit ensures stable flame kernel propagation, crisp throttle response, and complete fuel burn.

Technical Specifications

Compatibility

• 2006 Mercedes Benz CLK350 Base (3.5L V6 Gas M272.960 - C209 / A209)
• 2007 Mercedes Benz CLK350 Base (3.5L V6 Gas M272.960 - C209 / A209)
• 2008 Mercedes Benz CLK350 Base (3.5L V6 Gas M272.960 - C209 / A209)
• 2009 Mercedes Benz CLK350 Base (3.5L V6 Gas M272.960 - C209 / A209)

The Mercedes Benz Precision Caliber

Engineered to exact German powertrain tolerances, this direct-fit ignition kit ensures precise ECU handshaking with no check engine lights, delivering the smooth balance and reliable power delivery expected of the M272 platform.