- Compatible with BMW X5 E53 models from 2000 to 2007, this left front door lock cylinder (part number 51218402537) is designed for optimal security and functionality. - The door lock actuator plays a crucial role in controlling the locking and unlocking mechanism of your vehicle's doors. When a door fails to lock or unlock, a defective actuator could be the underlying issue. - Constructed from materials that meet stringent OEM standards, this product ensures high reliability and performance. Enjoy the peace of mind that comes with easy and convenient door operation. - Key attributes include: - Excellent resistance to extreme temperatures for dependable performance. - Durable material designed for extended lifespan and sustained functionality. - Practical applications: - Replace a malfunctioning door lock actuator to restore seamless locking and unlocking of your vehicle’s doors, enhancing security. - Ideal for maintenance and repairs to ensure your BMW X5 operates smoothly, preventing potential safety issues. - Ensure your vehicle's doors operate effortlessly with this reliable and high-quality door lock actuator.