Ignition Coil & Iridium Spark Plugs for Mercedes-Benz C280 (2006-2007) 3.0L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2006-2007 Mercedes Benz C-Class

Restores proper combustion efficiency: This direct-replacement ignition service kit eliminates misfires and restores smooth throttle response on the W203 chassis.

The Stock C-Class Ignition Degradation

The factory M272 ignition coils are notorious for premature thermal degradation due to their placement directly over the cylinder heads. Constant heat cycling breaks down the internal epoxy potting and the delicate primary windings, leading to increased electrical resistance. This manifests as intermittent rough idling, hesitation under heavy engine load, and eventual cylinder misfires that trigger P0300-series diagnostic codes. Additionally, standard OEM spark plug electrodes wear down over tens of thousands of miles, increasing the spark gap. This forces the aging ignition coils to work harder to jump the widened gap, drastically accelerating coil failure and decreasing overall combustion efficiency.

The Engineering Solution

This replacement ignition system addresses W203 heat soak vulnerabilities by utilizing upgraded ignition coils with high-grade copper wire internals and superior dielectric epoxy potting. These specialized materials offer enhanced thermal stability, maintaining consistent electrical voltage output even during extreme operating temperatures. The coils provide OE-plus durability to prevent premature winding failure. Paired directly with this are six advanced iridium spark plugs featuring a fine-wire center electrode. Iridium's exceptional hardness and high melting point ensure the spark gap remains precise over a significantly longer lifespan compared to standard platinum or copper plugs. This combined setup delivers up to a 15% improvement in spark energy, ensuring a complete, powerful fuel burn per cycle, restoring lost horsepower, and maximizing fuel atomization.

Technical Specifications

Compatibility

• 2006 Mercedes-Benz C280 3.0L V6
• 2007 Mercedes-Benz C280 3.0L V6

The Mercedes Benz Precision Standard

For European luxury sedans like the W203, precise ignition timing is critical for smooth, linear power delivery. This matched coil and plug kit ensures direct ECU compatibility, eliminating the risk of check engine lights while restoring the refined, balanced idle the M272 V6 was engineered to deliver.