Radiator replacement

Recently attempted to change the radiator, ive got far as trying to pull the radiator out of the bottom connected to the frame. I don't know what is still connected not allowing for it not to come out. Even if I pull the bumper off there is a plastic type shroud connected to the condenser not allowing me access to the condenser lines. Even if the bumper is removed there is a secondary bumper on the inside. Please provied a video. The video from 2carpros only is for 1999 to 2005 mercedes ml 500