Ignition Coil and Iridium Spark Plugs for Volvo C70 (2006-2013) 2.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2006-2013 Volvo C70

What it Does: The direct-fit ignition coil and iridium spark plug kit replaces aged factory ignition components on the 2006-2013 Volvo C70 to eliminate misfires, stabilize idle, and restore peak boost-phase combustion efficiency.

The Stock Volvo C70 Ignition Breakdown

In the P1 chassis C70, the turbocharged 5-cylinder engine buries the coil-on-plug (COP) assemblies deep within the aluminum cylinder head valley. Trapped engine heat and severe thermal cycling cause the internal primary and secondary copper windings to develop high resistance and insulation breakdown. Simultaneously, the factory silicone boots become brittle, permitting dielectric flashover and micro-arcing to the cylinder head under boost. Combined with standard plug gap erosion, this degradation triggers spark blowout, rough cold starts, hesitation under load, and persistent P0300 through P0305 misfire diagnostic trouble codes.

The Engineering Solution

This comprehensive ignition service kit features five high-dielectric pencil ignition coils engineered to interchange with OEM part 30713417 and five fine-wire iridium spark plugs. The coils utilize high-grade magnetic silicon steel cores and temperature-resistant epoxy potting to resist thermal shock and maximize secondary voltage delivery. Paired with ultra-dense iridium electrode spark plugs, this configuration lowers required firing voltage, provides high thermal resistance against flame erosion, ensures complete flame-front propagation, and prevents boost-induced spark quenching across all five cylinders.

Technical Specifications

Compatibility

• 2006-2013 Volvo C70 Base Convertible 2.5L 5-Cylinder Turbo (B5254T3 / B5254T7)
• 2006-2013 Volvo C70 T5 Convertible 2.5L 5-Cylinder Turbo (B5254T3 / B5254T7)

Frequently Asked Questions

Does this fit the P1 C70?
Yes, this is a direct fit for the 2006-2013 Volvo C70 equipped with the 2.5L turbocharged B5254T3 or B5254T7 engine.

Are the spark plugs pre-gapped for turbo operation?
While pre-gapped from the factory, always verify gap dimensions with a wire gauge against your engine bay emission placard prior to final torquing.

The Volvo Precision Standard

European turbocharged five-cylinder architectures demand strict electrical tolerances to maintain emission compliance and prevent catalytic converter damage. This ignition package matches original European factory electrical resistance and dwell characteristics, ensuring instant throttle response and zero-CEL reliability.