The other day I got in my 525D and turned the key, nothing, no dash lights, nada. Got back out locked it unlocked it got back, all fine. This morning at 6am went to unlock it and nothing. so i thought i'd go "old school" and use the key, that didn't work. After spending some time searching this forum i went outside and tried again. It unlocked. I locked it again and low and behold it would open again, came back in, more surfing, went back out and it had unlocked itself! Got in turned the key nothing, got back out closed the door and the hazards blinked once, got back in it was ok. I dare not lock it again...
Any ideas as to what part of the system might be at fault?