I had my lower fender well skirt off and it looked like it would come out without too much grief. Sounds like I am wrong and I am tagging along here as my replacement pump shows up in about 5 days.

When I had the headlight housings out to install my HID's I saw where the pump bracket would be impossible to get out without removing the headlight assembly but thought the IC pump didn't need that removed.....

I ordered a johnson and everyone on MB world said it is slightly larger in diameter, should be interesting once I get into it by the sounds of it.

Good luck and keep us posted, thanks!