Passat B4 power mirror problems
 

Hi, I need some help, my right side power mirror is working but it's stuck, when I try to adjust it moves but the motors are struggling but if I help by pushing the mirror it will work better, is there anyway to free up the motors/gears? Also, on my left mirror I can only adjust to the left and right, but if I try to adjust up and down I can hear the motor spin but nothing happens, also the mirror is loose, it's always tilting down. So to remove the mirror to see what's broken or out of place inside, does it simply pop off if I pry it, or is there any specific way to remove it?

Thanks