Citroen XM (1994-2000)
Depending on the type of body, the attachment points differ.
Front bumper
-open the hood.
-remove the license plate along with the frame.
-under the license plate, unscrew the two screws.
-unscrew the screws from the bottom (spun up).
-unscrew the screws that secure the corners of the bumper to the wings.
-with an assistant, pull the bumper forward (be careful not to break the wires).
-disconnect the connectors from the electrical equipment (if any).
Rear bumper
-open the trunk lid.
-unscrew the screws in the trunk opening.
-unscrew the screws and nuts from the bottom that secure the lower part of the bumper.
-unscrew the screws that secure the corners of the bumper to the wings.
-with an assistant, pull the bumper back (we'll look at the wires).
-disconnect electrical connectors (if any).