Ignition Coil + Spark Plugs for Mercedes Benz CLK-Class (1999-2003) 4.3L

Direct-Fit Ignition Coil and Spark Plug Refresh Kit for 1999-2003 Mercedes Benz CLK-Class

What it Does: The ignition coil and spark plug kit restores proper primary and secondary combustion energy across all cylinders on the 1999-2003 Mercedes Benz CLK-Class to eliminate misfires, stabilize idle RPM, and restore lost throttle response.

The Stock Mercedes Benz CLK-Class Secondary Ignition Degradation

The 4.3-liter V8 employs a twin-spark ignition design requiring eight dual-output ignition packs driving sixteen plugs. Over time, high engine bay temperatures break down the factory epoxy encapsulation inside the stock coil housings. This thermal stress produces microscopic dielectric breakdown, micro-arcing, and internal winding resistance drift. Concurrently, electrode erosion on worn plugs increases the firing voltage demand, forcing degraded coils to work beyond their saturation threshold. The result is unburnt hydrocarbons, intermittent cylinder misfires under load, sluggish acceleration, and recurring P0300 through P0308 diagnostic trouble codes.

The Engineering Solution

This comprehensive service kit replaces all eight high-voltage ignition coils alongside a matched set of sixteen spark plugs for a balanced combustion profile. Constructed with impact-resistant, high-dielectric PBT housing material and insulated copper primary and secondary windings, these coils deliver consistent dwell times and prevent voltage leakage under high-temp operating conditions. The paired spark plugs maintain calibrated electrode gaps to ensure rapid flame kernel development, reliable cold-start ignition, and efficient combustion chamber burn rates across the entire rev range.

Technical Specifications

Compatibility

• 1999 Mercedes-Benz CLK430 Base Coupe (4.3L V8 M113)
• 2000 Mercedes-Benz CLK430 Base Coupe & Convertible (4.3L V8 M113)
• 2001 Mercedes-Benz CLK430 Base Coupe & Convertible (4.3L V8 M113)
• 2002 Mercedes-Benz CLK430 Base Coupe & Convertible (4.3L V8 M113)
• 2003 Mercedes-Benz CLK430 Base Convertible (4.3L V8 M113)

Frequently Asked Questions

Does this fit the W208 CLK-Class?
Yes, this is a direct fit for the 1999-2003 Mercedes Benz CLK-Class equipped with the M113 4.3L V8 engine.

Do I need to replace all sixteen spark plugs when replacing these coils?
Yes, servicing all sixteen plugs simultaneously ensures uniform resistance across each cylinder circuit to prevent uneven coil stress and misfire codes.

The Mercedes Benz Precision Standard

Engineered to meet rigorous German operational tolerances, these direct-fit ignition components ensure clean diagnostic communication with the Bosch ME engine management system, maintaining proper catalytic converter life without throwing erroneous check engine lights.