This MAGNETI MARELLI Xenon ECU (Electronic Control Unit) is specifically engineered for the BMW 3-Series models E46/2 and E46/4. It plays a crucial role in regulating the power supply to your Xenon headlights, ensuring consistent brightness and proper function. Crafted with precision and adhering to stringent quality standards, this ECU module guarantees a perfect fit and seamless integration with your vehicle's electrical system. It is designed to meet or exceed original equipment manufacturer (OEM) specifications, providing a dependable solution for headlight system maintenance or repair. Choosing a MAGNETI MARELLI component means opting for durability and performance. This Xenon ECU is built to withstand the demands of daily driving, offering long-lasting service and contributing to your vehicle's safety and aesthetic appeal by maintaining the correct operation of your Xenon lights.