Ignition Coil and Iridium Spark Plugs for Audi A6 (2009-2018) 3.0L

Direct-Fit High-Output Ignition Kit for 2009-2018 Audi A6

What it Does: Restores high-voltage spark continuity and eliminates cylinder misfires across the rev band by replacing degraded factory coil-on-plug packs and worn spark plugs.

The Stock A6 Thermal Breakdown and Secondary Arc Failure

The supercharged 3.0L TFSI engine generates extreme cylinder head temperatures within the tight engine bay. Over time, OEM coil pack epoxy insulation hardens and micro-fractures, allowing high-voltage secondary current to arc to the cylinder head rather than the spark plug electrode. Combined with standard electrode erosion on factory plugs, this causes rough idling, high-load spark blowout, sluggish throttle response, and diagnostic misfire codes (P0300-P0306).

The Engineering Solution

This comprehensive ignition service kit features six upgraded coil assemblies built with premium oxygen-free copper internal windings and reinforced dielectric housings engineered to resist thermal degradation and dielectric puncture. Matched with fine-wire iridium spark plugs, this setup maintains a stable flame kernel under forced induction boost pressures, lowering required strike voltages, stabilizing idle quality, and restoring crisp throttle response across all operating conditions.

Technical Specifications

Compatibility

• 2009-2011 Audi A6 Quattro 3.0L V6 Supercharged (C6)
• 2012-2018 Audi A6 Quattro 3.0L V6 Supercharged (C7 / C7.5)
• Interchange Part Numbers: UF-529, 06E905115A, 06E905115B, 06E905115C, 06E905115D, 5C1688, 5C1846, 5C2121, IC609SB, PF6RQ

The Audi Precision Standard

Calibrated specifically for Bosch and Simos engine management architectures, these ignition components provide exact factory impedance to prevent false misfire triggers, ensure clean emissions, and maintain trouble-free, check-engine-light-free operation under hard acceleration.