Thanks Gold, live in the middle east and batteries don't last long so hoping you onto something. Only have the vehicle a few months and don't know when the batt was last replaced. Cheers

Hi kermit, initially it occurred when braking during motorway driving. Next time when i braked but moderate braking each time. Since then different each time.

2016 405, autobiography has an ever increasing intermittent electrical fault. Initially once a week or so for 2-3 mins, now every time I drive it. Main control screen switches off, aircon fans stop working and only warning messages that come on...