Depending on the year of manufacture, the mounting locations may vary.
Front bumper
-open the hood.
-under the hood, release it from the clamps (you need to turn it ninety degrees with a flat screwdriver) and remove the radiator grille.
-from the bottom we take out the pistons and unscrew the screws that secure the lower part of the front bumper.
-turn the wheels to the side.
-in the wheel arches we release the fender liners (front part).
-move the fender liners to the side and unscrew one screw (there may be nuts) on each side (twisted from bottom to top), which secure the corners to the wings.
-from the bottom side, unscrew the bolts that secure the metal bumper amplifier to the body.
-with an assistant, carefully pull the bumper forward (watch the wires).
-disconnect the connectors of the electrical equipment (if any).
Rear bumper
-tear off the trunk lid.
-from the bottom, unscrew the screws and take out the pistons that secure the lower part of the rear bumper.
-behind the fender liners, in the wheel arches, unscrew one screw on each side (twisted from bottom to top) that secure the corners to the wings.
-we release the bumper from the latches in the metal amplifier (pull it towards ourselves).
-with an assistant, pull the bumper back (watch the wires).
-disconnect the connectors of the electrical equipment (if any).
Three-piece bumper.
-open the trunk lid.
-take out the caps, release them from the latches and remove the central part.
-unscrew the eight screws under the central part and in the trunk opening.
-unscrew the screws from the bottom.
-in the wheel arches, unscrew the screws and release the fender liners.
-behind the fender liners, Unscrew the screws that secure the corners to the wings.
-remove the side parts of the rear bumper.
How to remove front and rear bumper Nissan Sunny N14