Genuine OEM Volkswagen Ignition Coil, part number 03D905715A. This essential electrical component is responsible for transforming the low voltage from the vehicle's electrical system into the high voltage required to create a spark at the spark plug. This spark ignites the air-fuel mixture in the engine's combustion chamber, enabling engine operation. Each coil typically sits directly on top of a spark plug. Weighing approximately 0.24 kg, this coil is engineered for precise electrical characteristics and durability. Choosing a genuine OEM ignition coil ensures correct voltage output, reliable spark delivery, and proper integration with the engine management system, which are crucial for consistent engine performance and fuel efficiency.