Depending on body type and year of manufacture of the fixing points are different.
Front bumper
-open the hood.
-under the hood take out the rivets and remove the plate.
-under the pickguard, Unscrew the screws and remove the grille.
-under the grille, Unscrew the screws that attach the top part of the bumper.
-in the lower part of the bumper take out the caps and Unscrew the screws (twisted and inserted from the bottom up).
-wrenched the wheel left or right, depending on which side will do.
-in the wheel wells, Unscrew the screws and take out the rivets that attach the fender liner.
-attach the fender liner to the side and Unscrew one screw on each side (spun upwards) holding the bumper to the wings.
-with the assistant release the latch in the wings and bumper pulls gently on yourself.
-remove the connectors from the fog lights (if any).
-remove connectors with additional electrical equipment (if available).
Rear bumper
-open the trunk lid.
-in the sidewalls of the opening, Unscrew one screw on each side that secure the upper part.
-on the perimeter in the lower part and pull out the caps.
-wheel arches Unscrew the screws that attach the fender liner.
-attach the fender liner to the side and Unscrew one screw on each side holding the corners of the bumper to the wings (spun up).
-assistant free the bumper from the clips in the wings and gently pulls on itself.
-remove the connectors from the equipment (if any).
How to remove front and rear bumper Nissan Note E12 (2013-2020)