Ignition Coil and Iridium Spark Plugs for Audi A6 (2002-2004) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2002-2004 Audi A6

What it Does: Restores factory secondary ignition performance and eliminates under-load misfires by replacing all six coil-on-plug units and spark plugs with matched, high-dielectric components.

The Stock A6 Thermal Breakdown Weakness

The OEM ignition coils in the 3.0L 30-valve engine sit deep within cramped cylinder head pockets, subjecting them to intense heat soak. Over repeated thermal cycles, factory potting epoxy degrades and insulation fails, causing dielectric breakdown, resistance drift, secondary voltage leakage, and rough idle or high-RPM misfires.

The Engineering Solution

This refresh kit pairs heavy-duty coil packs featuring high-conductivity internal copper windings and reinforced thermoplastic housings with fine-wire iridium spark plugs. The iridium center electrodes significantly reduce voltage demand on the ignition system while resisting thermal erosion. High-grade internal potting protects windings against heat-induced breakdown, ensuring stable dwell times, rapid spark discharge, and complete combustion under all operating loads.

Technical Specifications

Compatibility

• 2002-2004 Audi A6 Base Sedan 3.0L V6 (Engine Code: AVK)
• 2002-2004 Audi A6 Quattro Sedan 3.0L V6 (Engine Code: AVK)
• 2002-2004 Audi A6 Quattro Avant Wagon 3.0L V6 (Engine Code: AVK)

The Audi Precision Standard

Engineered to exact German electronic tolerances, this kit matches factory Motronic ECU impedance requirements to prevent false misfire diagnostic trouble codes (DTCs) and maintain seamless, factory-spec driveability.