Hi,we recently had an 2003 3.0d x5 in for mot work,cv boot & rear pads,whilst in the battery went flat.Since then its got an array of electrical faults ie the sat nav screen has gone blank even tho the eject button still tilts the screen,the dashboard tell tales for the indicators & mainbeam don't work even tho they do externally,reverse lights dont work,indicators dont flash when you lock,unlock car with remote & the fuel low warning light is on constantly.any inputs or views would grateful