Hello together have the following problem … since a few weeks my battery will be charged up 2-3 days later again empty no workshop could help me. I made it to BMW my car true over 3 weeks with the had to call themselves always after again the thought again troubleshooting takes long process must pull out all plugs of the fuse individually and wait what happens …yes after three weeks I said that when car is not ready soon I get it and bring e I picked up my car after three weeks who pulled the plug out of the radio and see that the car doesn’t go OFF already over a week what I’m happy about … but in this fuse what has been pulled out now a part of the on-board computer doesn’t work and the cd changer also doesn’t ….the radio has or if I do the fuse plug [again it works perfectly there is no Signs of defective …can now be the radio or is something different ???? If someone has had experience with such a problem please comment the have no desire to buy a radio and then is something different . Yes still now he shows me still SOS by deleted emergency call system error after a short time it goes out again Thanks