BrownPower

Hi!

I need to replace 2 parking sensors on the rear bumpers.
Ive been on real oem and what feels like all over the internet and still dont have a proper answer

i have a 2008 535i regular bumper ( will be getting m-sport bumper soon )

real oem has 2 versions with the following part numbers:
version 1 has all 8 sensors are the same: 66209142212

version 2 has sets of 4 for the front and back
front:66206989092
back: 66206989091

so what the heck. the car is lci and it has 3 different sensors?

car was made 2007/04 according to vin lookup.