Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received 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.
The first thing that has to be done here is to have the fault codes read out/checked with a fully compatible scan tool that will plug in and can read all computers in your model here.Once this is done any codes set then need to be diagnosed to then locate and repair this fault here.This has to be done with a scan tool that can plug in and reads all computers in your vehicle.
This may be a short in a SAM control unit needing replaced here or shorted wiring causing this fault.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.