Well, I did figure out how to remove the motor after all, and it´s not hard at all, all you need to do is remove the three small bolts that hold the motor to the regulator, and loosen the two front nuts that hold the regulator to the door; that will give you enough room to get the motor out. The regulator is spring loaded, so the glass stays up and does not comes crashing down on your hands.
Turns out the motor was jammed with something and was not burned out.
False alarm.
Thanks