Ignition Coil & Spark Plugs for Audi A5 Quattro Sportback (2018-2020) 2.0L I4

High-Output Ignition Coil & Ruthenium Spark Plugs for 2018-2020 Audi A5

Restores optimal combustion and resolves misfire conditions in tuned or aging EA888 engines. This comprehensive ignition service kit replaces degraded OEM coils and fouled plugs to stabilize voltage output and ensure a consistent spark under elevated cylinder pressures.

The Stock A5 Ignition Shortcomings

The factory ignition coils on the 2.0L TFSI are notorious for premature internal resistance failure, especially when subjected to the prolonged heat soak typical of the tightly packaged B9 chassis engine bay. As the original epoxy insulation degrades, thermal cycling leads to micro-cracks in the coil housing. Under heavy load or increased boost pressures, this compromises spark energy, resulting in primary ignition coil failure, erratic idling, part-throttle hesitation, and hard misfires. Additionally, standard OEM spark plugs often experience accelerated electrode wear and gap widening over 40,000 miles. This significantly reduces the efficiency of the fuel burn and exacerbates carbon buildup on the intake valves—a well-documented issue in direct-injected EA888 powertrains.

The Engineering Solution

This ignition kit features upgraded high-performance Ruthenium spark plugs paired with direct-fit, high-output ignition coils to entirely eliminate OEM spark blowout. The ignition coils utilize enhanced secondary windings and high-dielectric epoxy potting to maximize thermal efficiency and provide a higher voltage output. This guarantees a stronger, more consistent spark even under the extreme cylinder pressures of tuned applications. The included Ruthenium spark plugs feature an advanced alloy composition that vastly outperforms traditional Iridium or Platinum plugs in terms of both durability and ignitability. The Ruthenium electrode design maintains a perfectly stable spark gap over a significantly longer service life, promoting a complete, clean fuel burn. This translates directly to smoother power delivery, restored fuel economy, and absolute reliability during high-rpm operation.

Technical Specifications

Compatibility

• 2018 Audi A5 Quattro Sportback 2.0L I4
• 2019 Audi A5 Quattro Sportback 2.0L I4
• 2020 Audi A5 Quattro Sportback 2.0L I4

The European Precision Standard

Engineered to exact VAG specifications to guarantee a seamless installation and absolute compatibility with the factory ECU, ensuring a direct fit with zero check engine lights (CEL) and consistently restored factory performance.