Depending on the model year and body type of attachment are different.
Front bumper
-under the hood take out the caps (inserted upside down). Until 2005, under the grille, since 2005, above the grille.
-wrenched the wheel to the left or right side depending on which side we will analyze first.
-wheel arches Unscrew the screws that attach the fender liner.
-on the perimeter in the lower part and pull out the caps (inserted from the bottom up).
-assistant exempt corners of the latches in the wings and remove the bumper from the guides themselves.
-remove the connector from the fog lamp (if any).
-remove the connector from the temperature sensor (if any).
-if you have headlight washers, disconnected the hoses (so the liquid will not escape on earth, should prepare a special container).
Rear bumper
-open the trunk lid.
-Unscrew the two screws behind the license plate (wagon four in the opening of the trunk).
-Unscrew the screws in the wheel arches (so as not to remove the wheels easier to turn a ratchet with a nozzle).
-Unscrew the screws at the bottom of the bumper (spun up).
-with the assistant release the latch in the wings and under the tail lamps.
-remove the bumper from the guides themselves.
-remove the electrical connector license plate light (if available).
-remove connector from the PDC (if any).
How to remove front and rear bumper Opel VECTRA A (1989 - 1995)
How to remove front and rear bumper Opel VECTRA B (1996 - 2002)