that is not a bmw part number... I cannot look that up...
what is the last 7 digits of the vin of your car?
I will provide an honest answer. I trust this will be appreciated. Please remember that a low rating PUNISHES me for being honest and that I receive nothing for my time until a positive rating is clicked.the part number you purchased does not fit to your car.
the similar sensor that actually fits to your car is 13621703993 and goes into the side of the head per the image item 14 here: https://app.box.com/s/vaaoe9mzt8rd9ck765u1
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.