The 3 most common part(s) or condition(s) which cause the symptom Dishwasher leaking from motor area are listed below starting with the most likely. Check or test each item and watch any available videos.
RepairClinic Item # 907946
If water is leaking from the pump by the motor shaft, the impeller and seal kit will need to be replaced. If the impeller and seal kit are are not available separately or you don't want to take the pump apart, you may want to replace the pump and motor assembly.
RepairClinic Item # 274144
If the dishwasher is leaking water from the motor area, the pump gasket might need to be replaced. The gasket can crack or deteriorate allowing water to leak under the dishwasher.
RepairClinic Item # 2478
If the dishwasher has a leak in the motor area, the sump seal might be defective. Most dishwasher pumps have a large bowl, or sump, which collects the water that goes into the pump. The sump mounts into the bottom of the dishwasher and there is a rubber seal around the perimeter of the sump which provides the seal to the dishwasher main tub. If that sump seal has worn out a leak can occur. Some dishwashers have a lock ring that holds the sump tight to the bottom of the tub. If the lock ring is cracked or damaged it will need to be replaced.