A mystery for those who may be able to solve.
I received my control board for my Bosch dishwasher From AppliancePartPros, SHX33RF5UC/64, and replaced in a snap. All parts came off easily, and without difficulty. Although, when putting the few door parts back I notice a plastic part laying on the floor. It was broken. I searched for anything like it in the parts diagrams, and I really don't see it there. It doesn't appear to go anywhere.
I thought maybe it accidently got packed loosely in the box with the control board, and fell out when I unpacked it.
Well, I spotted a second one fully intact sitting loosely at the bottom of the door hinge. I have no earthly idea where they came from or go, and they are not listed in the parts catalog.
See image below.

The plastic brackets in the picture are used inside of the door panel. When the outer door panel is removed, there will be a slot in the hinge bracket where these would mount. They are used to support the lower corners of the front panel and are part number 00652654.