Ignition Coil and Iridium Spark Plugs for Audi A5 (2021-2022) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2021-2022 Audi A5

What it Does: Restores factory secondary ignition output and cylinder combustion stability across the rev range by replacing degraded ignition coils and worn spark plugs.

The Stock A5 High-Heat Thermal Degradation

The turbocharged EA888 2.0L engine operates under elevated cylinder pressures and tight thermal tolerances. Over time, OEM coil pack epoxy insulation breaks down from continuous heat cycling in the cylinder head wells, causing internal primary/secondary winding shorts, dielectric breakdown, and intermittent high-boost misfires under load. Factory spark plug electrodes also suffer from premature erosion and gap widening, placing increased resistance on the ignition system.

The Engineering Solution

This comprehensive tune-up kit features four high-dielectric coil-on-plug units built with premium copper magnetic wire and reinforced thermoplastic housings to resist thermal fatigue. Paired with four fine-wire iridium spark plugs, the kit ensures low breakdown voltage requirements, precise thermal dissipation, rapid flame-front propagation, and zero high-RPM blowout, effectively resolving rough idle and cold-start hesitation.

Technical Specifications

Compatibility

• 2021 Audi A5 Sportback / Coupe / Cabriolet 2.0L 4-Cylinder Turbo (40 TFSI, 45 TFSI)
• 2022 Audi A5 Sportback / Coupe / Cabriolet 2.0L 4-Cylinder Turbo (40 TFSI, 45 TFSI)

The Audi Calibration Standard

Engineered to meet precise European engine management tolerances, delivering accurate dwell times and clean communication with the factory Bosch ECU without throwing misfire DTCs or check engine lights.