Genuine OEM Audi Ignition Coil, part number 06E905115F. This essential component generates the high voltage electrical pulse necessary to fire the spark plugs, initiating combustion in the engine. It is typically mounted directly over the spark plug. Weighing approximately 0.231 kg and measuring 0.179 meters in length, a genuine OEM ignition coil ensures reliable voltage output and precise timing, critical for consistent engine performance and fuel efficiency.