Hello what year is your car..I have a 2011 Mercedes benz s550 4matic w221 and im having the same problem.. My car when new was fitted with the bang and olufsen sound system. I send off my satellite radio tuner and the 2 amps that I saw in the trunk on the left to a Mercedes tech specialist who repair these items and he said all my parts are good but still I have no sound..what else may be the problem.. We all here need help..what you think?
I'm working on 2010 version of the s550 the radio and the navigator screen is not coming on at all, and I no communication to the both of them with my scantool...I need help!!!
Having the same problem 07 s550 everything works except radio sound. No numbers are displayed. I’m getting good optical connection to each unit. When I unplug my amp. Everything still shows the same. Wondering bad amp or control unit. You should have said what u did to fix it.
