1、PART NUMBER: The reference part number are 66216982402, 66209252639, 9252639, 66216947796, 6947796, 66206982394, 6982394, 66206969281, 6969281, 66206982402, etc. 2、APPLICABLE MODELS: Designed for 1 3 Series E81 E82 E87 E88 E90 E91 E92 E93 models, 2 plug port design, ensuring efficient and reliable performance. No need for modification, convenient for your use. 3、POWERFUL FUNCTION: With fault diagnostic function to observe ultrasonic sensors, PDC switch, bus signals, and module itself, record fault information including nature, occurrence times, mileage, external temperature, etc. 4、DURABLE MATERIAL: 2 plug PDC control module is made of wear resistant and impact resistant ABS materials, ensuring long lasting performance in extreme weather conditions. 5、ENHANCED SECURITY: This parking distance control unit utilizes upgraded design and technology to assist drivers in parking safely, accurately, and with less risk of collision.