Hi, bought a damaged V36 09 sedan replaced most of the front body parts except front bumper and grill. I though there was supposed to be some sort of crash sensor in front of radiator. I can't locate any yellow plug or wiring or where the sensor should mount and no idea what it should look like, however the srs/airbag light is on. Can anybody help with some info about where it is and where the wiring runs etc? Thanks for any advice