The Genuine BMW Ignition Starter Switch - 66129194399 is a high-quality replacement part for BMW vehicles. It is designed to control the ignition system and allow the engine to start. This switch is made from durable materials and is manufactured to the exact specifications of the original part, ensuring a perfect fit and reliable performance. It is an essential component of the vehicle's electrical system and is crucial for proper engine operation. This Genuine BMW Ignition Starter Switch is a genuine OEM part and is compatible with various BMW models.