Lower Body Cladding
 

Does anyone know how to fix the lower body cladding in the later W124s? I think a couple of those retaining clips are broken and the cladding is not lining up even from the body. I ordered some new clips but I don't know how to get in there to replace them. Thanks.

If you're speaking about the ones on the doors, sure they're easy.
Open the door and there is a phillips head screw at the rear most edge of the cladding just inside the door's edge. Remove the screw. While propping the door open remove the cladding by pressing it gently against the door and sliding it approx 3/4" to disengage the "hooks". (towards the rear i think)