Indesit DG6100W dishwasher waterleak

Indesit DG6100W dishwasher has a waterleak somewhere at the bottom of the door.
Machine were turned on its side, all water connections is dry, Every place at door area were inspected and no leaks can be seen,
As soon as washing cycle starts, water is leaking from the bottom of the door, more to the left side of door area.
What can be the reason for it or what can I do to find the leak, please advise and thanx
Regards - Some One