No communication with dme or egs & other electrical issues

[Supr4]

Hello everyone

New member here. Looking for help trying to fix an old X5.

First issue is that I'm failing to connect to my dme and egs with any tool I could have tested (INPA ISTA DIS) including some garage diag tools and Carly. Every other module I can access.
Is there something broken in my car or I need some specific files (IPO ect) that INPA doesn't have to be able to read it ?

I also have an issue with the alternator regulator who stop the charge after 30seconds-5min after engine start. So I drive with regulator disconnected. First alternator I had a battery light intermittently and I could force the alternator-regulator to charge by giving it a strong rev's up.

The car previously had a crash and I have a crash detection error in the zke module that won't go but I think there is nothing to do except change the airbag module and the airbags that have been triggered.

Even before all that it always had a radio/sound issue where it would loose sound and recover it by itself or with a small bump on the road.

My car is an X5 E53 4.4i 2001