Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.If you are sure everything is plugged in then thhis dose sound like a bad unit. Lets get the replacement installed and see if that solves the problem and if not post back and we can work from there if need be.