Why is my radio not working after replacing battery?
The radio not working could be a blown fuse, faulty wiring, or a bad radio.
How do you reset a Mercedes after replacing the battery?
Simply remove the cable and let the car sit for at least five minutes. Then, reconnect the cable and tighten the clamp. Start your vehicle and check to see if the dashboard lights are gone.
Why is my Mercedes radio 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.