Originally Posted by tcw
I retrofitted the CIC into my '08 E92 a while ago. Over the past month the CIC would randomly flicker off and on. It might be off for 1/2 second. The sound of music stops at the same time and a light by the sunroof control flickers as well (SOS light maybe?) Any idea what could cause this? Maybe a loose connection? Or is there any precedence for this happening in other CIC's, I couldn't find any searching. Although it doesn't happen when I hit bumps, it seems completely random. Also it doesn't reboot after the flicker it just resumes where it was, so I don't think its a power issue, but maybe signal.
You use a bad quality CAN Filter Activation module.
Flickering of the screen on the CIC is well known problem for some cheap CAN filters.
Contact with manufacturer and ask for the replacement.
It is not right when the manufacturer is asking you to solder the electronic components on board
of their product to get the problem fixed.