Depending on the year of manufacture, the attachment points differ slightly.
Front bumper
The bumper is removed along with the radiator grille.
-open the hood.
-under the hood we take out the four pistons that secure the radiator grille and the upper part of the front bumper.
-from the bottom side, unscrew the ten screws that secure the lower part.
-turn the wheels to the side.
-in the wheel arches, unscrew the screws and release the fender liners (front part).
-move the fender liners to the side and Unscrew two screws on each side (twisted from bottom to top) that secure the sides to the wings.
-in the inner part of the wings, unscrew one screw on each side under the headlights.
-release the latches under the headlights.
-with an assistant, carefully pull the bumper forward (watch the wires).
-remove the connectors of the electrical equipment.
Rear bumper
-open the trunk lid.
-in the trunk we release the side trims.
-behind the casings, unscrew four nuts on each side and remove the rear lights.
-under the rear lights, take out two pistons on each side that secure the upper part of the rear bumper.
-from the bottom, unscrew the four screws and take out the two pistons that secure the lower part.
-(2005-2008) in the inner part of the wings, unscrew three screws on each side that secure the sides to the wings.
-(2008-2010) release the latches in the wings (pull the corners towards you).
-release the latches in the trunk opening.
-with an assistant, pull the bumper back (watch the wires).
-disconnect the connectors of the electrical equipment (if any).
How to remove front and rear bumper Infiniti M25 / M35 / M37 / M56 (2010-2019)