Why is my Mercedes speakers not working?
The most common solution to fix any of these issues is to try to perform a soft reset of the COMAND unit. For you to do that, you will need to remove the fuses for the CD Changer, COMAND/ NAV / DVD Player / Radio, Audio Gateway AGW, and the Voice Unit if it is equipped with one, for at least 10 minutes.
What is the most common problem with Mercedes-Benz?
Engine misfires are one of the most common problems we see in Mercedes-Benz vehicles. This scenario often happens to cars that haven’t undergone any routine maintenance, particularly the replacement of wear parts such as spark plugs.