1、Fitment: Ideal solution for those whose original part is missing or broken, perfect replacement for 128i 2011; replacement for 128i 2008‑2013; replacement for 323i Sedan 1999‑2000; replacement for 325i Wagon 2003‑2005; replacement for 328i Convertible 2012‑2013; replacement for 528i 2009‑2010; replacement for 645Ci 2004‑2005; replacement for 745Li 2002‑2005. 2、OEM: The OEM of our alarm system switch is 61319119052, please check the part number of your item before purchasing. 3、Satisfied Performance: Our car alarm system switch is made from stable ABS material, which is lightweight but solid, abrasion resistant and not easy to aging, ensuring maximum strength and durability for long lasting use. 4、Accurate Observation: With highly sensitive pins, the distance between the rear of the vehicle and the nearest obstacle can be measured with high accuracy, then the switch will give an alarm to remind the driver to pay attention to the rear situation. 5、Easy to Install: Our alarm sensor switch meets OE standard, and can be directly installed without more adjustments or modifications.