Mohitsj6819

I’m having an issue with an error message “blind spot assist inoperative”. It is a 2017 e300 sedan. First time I got the message I had a used sensor put in which fixed the issue for 1 month. After that it went bad again. This time I got an OEM brand new sensor from Mercedes and it went bad in ONE DAY!! Now there’s no point in swapping the sensor cause it’ll only work for less than a month. Anyone know what could be the issue? Mercedes wants to charge me just to look at it because the car was bumper tapped in NYC a while ago which caused no issues. Any suggestions on what might be causing the new sensors to go bad? Appreciate the help

konigstiger

Check connections starting with bumper harness given circumstances.