Ignition Coil and Iridium Spark Plugs for Audi A8 (2013-2016) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2013-2016 Audi A8

What it Does: Restores full spark energy and combustion stability by replacing degraded factory coil packs and worn spark plugs across all six cylinders on the supercharged 3.0L TFSI engine.

The Stock A8 D4 Ignition Breakdown

Under continuous thermal cycling in the Audi D4 engine bay, factory ignition coils suffer dielectric breakdown within their internal epoxy encapsulation and copper windings. Combined with elevated cylinder pressures generated by the supercharged 3.0L V6, degraded secondary insulation causes high-rpm spark blowout, intermittent misfires, idle instability, and unburned fuel entering the catalytic converters.

The Engineering Solution

This comprehensive service kit features six heavy-duty coil-on-plug assemblies engineered with high-grade internal copper windings and reinforced silicone boots to resist dielectric puncture and heat soak. Paired with six fine-wire iridium spark plugs, this setup maintains a stable spark gap under boost, promotes rapid flame kernel propagation, reduces electrical load on the secondary circuit, and eliminates misfire-induced check engine lights.

Technical Specifications

Compatibility

• 2013-2016 Audi A8 Base – 3.0L V6 Supercharged (EA837)
• 2013-2016 Audi A8 L – 3.0L V6 Supercharged (EA837)

The Audi Engineering Standard

Engineered to meet precise European engine management tolerances, this ignition refresh ensures flawless ECU integration without triggering soft codes or check engine warnings, restoring factory-smooth throttle response.