Depending on the year of release of the attachment can vary.
Front bumper
-open the hood.
-under the hood, Unscrew the five screws that secure the top.
-around the bottom part Unscrew the seven screws (spun up) that secure the lower part.
-free lining of the wings of the bumper (hold on the latch, simply pull on yourself).
-wrenched the wheel to the side.
-wheel arches pulled three pistons on each side and removed the wheel arches (the front part).
-attach the fender liner to the side and Unscrew two screws on each side (spun upwards) holding the corners of the bumper to the wings.
-release the clips under the headlights (pull the bumper forward).
-with the assistant pulls the bumper forward (look for wires).
-release the connectors on the Parking sensors, fog lights, temperature sensor (if any).
Rear bumper
-open the trunk lid.
-in the trunk, Unscrew the screws and remove the rear trim panel.
-for the casing, through the holes in the rear panel, Unscrew the two nuts.
-Unscrew the four screws (twisted up) and take out the rivets that attach the lower part.
-free lining of the wings of the bumper (hold on the latch, simply pull on yourself).
-wheel arches take out two pistons on each side and removed the wheel arches (rear).
-move the wing flaps to the side and Unscrew one screw on each side (spun upwards) holding the corners of the bumper to the wings.
-we release the latch in the wings (pull the corners themselves).
-with the assistant pulls the bumper backwards (look for wires).
-snap together the connectors of electrical equipment.