Water leaking in through door lock?

are you sure that the membrane between door and trim panel is intact and fully stuck to door at bottom and sides-if not will allow water to enter vehicle.i have never had to seal lock/ screws to cure water ingress. by the way how have you found this to be the problem.

k
April 2012

you may have to remove the bolts and apply a bit of sealer onto the rear of the lock

cdc
April 2012