How do I get to the Motor Position (Hall) sensor to replace it?

I have the WM1812CW showing the LE error and I'm unable to reset, so I assume based on another thread here it is the motor position (hall) sensor I have to replace. I have got the back of the machine off, I took the 17mm bolt in the middle of the stator cover off, but then I am stuck. I cannot get the cover off. I see three bolts sticking out through the cover but they have no nuts on them and then there are three plastic "thingy's" sticking out from three other holes. I tried to remove these since I thought these are the only ones holding the cover there but I accidentally cut 2 of them off when trying to do so. And the stator cover will still not come off.
Please HELP, anyone! :)
How do I get this off? I hate having to call a service guy and spend hundreds of dollars for something I might be able to fix for $30.