Audi 80 B3 (1986-1992)
Front bumper
-remove the grille
-under the grille remove the screws
-the edges of the front part of the bumper, remove grille (if present) and Unscrew the two bolts from the cap of hex, they are curved from bottom to top .
-pulls off the edge of the bumper with side locks (the edge of the bumper and pull down on themselves)
Rear bumper
-remove the plastic cover of the rear part of the trunk (where the lock is)
-under the casing Unscrew the four nuts (approximately at the level of the edges of the trunk lid)
-pulls off the edge of the bumper with side locks