I've got to replace the radiator because it is leaking. My manual says that I need to remove the front bumper. I've taken off the 6 screws in the fender well and the two bolts in the front bumper. The bumper is loose, but I can't seem to get the bumper off the clips in the fender well. Any helpful hints would be greatly appreciated. My car is a 2000 A4, Manual 5 speed, 2.8