My wife drives a 2001 X5 the wiper just behind the wiper fluid reservoir tank there are 2 small barrel looking pumps. One of them was unplugged so of course I plugged it in thinking this was why the fluid wasn't working. The pump would not shut off. Motor wasn't running with the key in my pocket ...I finally got it unplugged just before the tank was emptied.

Any ideas? I tried a new pump did the same thing.