I was washing the car at the weekend and had the key in my pocket. (comfort access)
The funny thing was when I was pre-washing the car with the hose (wetting)and afterwards when rinsing the car again with the hose the car would lock then unlock it's self at random.
But after tinking about this the answer was obvious !
The comfort door handles work on the (capcitive resistance) of the human body. In other words your (your body completes the elelctrical circuit to the ground when touching the door handle.
The water flow from the hose was 'bridging" the small distance bewteen the outer door handle and the part we touch (inner door handle), causing the car to lock/unlock.
Has anyone else had this happen to them???