Active Brake and Blind Spot Functions inoperative
1. B1FBD54 - front camera calibration missing. The 360 camera still works when I engage in reverse but the front doesn't look correct. I've tried multiple times to recalib the front camera and failed (the calib went to 30% then dropped out) . I saw a video on YouTube saying it could be because of the after market grille. Anyone installed an after market grilles and successfully recalib their front camera?
2. I suddenly had this message when I was driving (brake assist function limited, and blind spot monitoring inoperative) I check with Xentry and it has a code U145C78, front long range radar sensor is incorrectly adjusted (horizontally). How do I fix this? I thought it was bad battery and have since replaced a new main battery but problem persists.
2. Get the camera, radar sensor, etc. calibrated. (There is a process in XENTRY that initiates the calibration of the radar sensors and you drive around for 10-15 minutes.)
3. Put the steering wheel back on the correct side.
2. I'll look for an youtube video about radar calib.
3. What do you mean by this?
https://mbworld.org/forums/mercedes-...r-sensors.html
Last edited by PotatoHeadII; Apr 14, 2026 at 07:09 PM.









