BMW E39/E53/E60/E61/E64 Parking Sensor 66200309542

This replacement part uses the same ultrasonic sensor element and injection molding process as the original, with an exterior made of weather-resistant engineering plastic. Its UV aging resistance is comparable to OE parts, and measurements show stable detection accuracy from -30°C to 80°C, with durability validated on a test rig. OEM number: 66200309542. Compatible with BMW E39, E53, E60, E61, E64 chassis models. Functionally, it detects obstacles behind the vehicle during reverse, signaling distance via changes in buzzer frequency, with a detection range accurate to 0.2-1.5 meters. Installation difficulty: medium; requires removing the inner bumper side panel and unplugging/replugging the original wiring harness. Pay attention to sensor clip orientation. Recommended to be installed by technicians familiar with BMW electrical systems.