W221 & Audio Moderator
All right, this has been a frustrating bag of snakes, but I think I've finally solved it. I have done the following so far:EMBWagon. I have a 2012 GL450. I am having the exact issue you are having. I have tried different phones and still have the issue.
Does anyone know if this can be addressed with a software update or if it's a component of the Bluetooth system that needs to diagnosed?