Depending on the year of release of the attachment can vary.
Front bumper
-open the hood.
-under the hood take out five caps and Unscrew two screws.
-wrenched the wheel to the side.
-wheel arches Unscrew five screws on each side.
-on the perimeter in the bottom part Unscrew the four screws (spun up) that secure the protection of the bumper.
-with an assistant, carefully release the clips in the wings and under the headlights (pull the corners themselves).
-pulls the bumper forward (don't want to break the wires and hoses).
-remove connectors from electrical equipment and hoses of washers (if any).
Rear bumper
-open the trunk lid.
-in the opening of the trunk, Unscrew the two screws.
-wheel arches Unscrew five screws (to remove the wheels, loosen the ratchet with a nozzle).
-Unscrew the two screws at the bottom.
-with an assistant, carefully release the clips in the wings and under the rear lights (pull the corners into themselves and back).
-pulls back bumper (don't want to break the wires).
-snap together the connectors of the equipment (if any).
How to remove front and rear bumper Volvo S40 V40 (1995-2004)