What did you need help with removing it?

basically you just remove the hatch trunk liner and pull out the motor with a few bolts

I actually deleted mine with the entire motor and plugged it with some loctite stik'n seal

if you take the whole thing out you can remove the cover and check the gears, you might be able to get it so that while it may not be properly functional you can at least stop it from flopping around

 

I just needed the exterior arm off. But it came off while driving........

 

lol, one way to fix it, there is a nut at the base of the wiper which is how you would normally remove it.

 

I assume you tried taking off the nut, and the arm was seized on?

There is a tool specially for this. When the arm finally gives way there is a mighty CRACK.

Regards - Doug

 

If the retaining nut is loose, which they tend to back off, just flip the black cover up. Remove the nut and arm completely and clean all contact area. Can't remember what I used but a non-permanent loctite or equivalent is ideal for the shaft and arm contact area. Run the nut back down firm once aligned (I place the wiper along the blackout edge) and you should be good to go for years.

Absolute worst case is the shaft teeth are worn smooth and you may need a new (used) assembly. With the taper of the shaft, if should still give you enough bite for service.