All models 1-series (E81, E82, E87, E88) bumper mounted about the same.
-under the hood, Unscrew the four screws that attach the bumper to the top of the bar.
-in the lowest part of the bumper along the entire length Unscrew nine screws.
-Unscrew the wheel left or right, depending which side will remove the first and Unscrew the screws that attach the fender liner to the bumper.
-move the fender liner aside and Unscrew two bolts on each side (usually an asterisk) that secure the bumper to the wing (spun up).
-attach the edge of the bumper to the side and pulls the bumper itself (it assistant).
-remove the connectors from the fog lights (if any).
-remove the hoses from the headlight washers (if any) so that the liquid will not escape, you need to prepare any tube.
-the bumper is cleared.
-in the wheel wells, Unscrew the screws that fasten the inner fender (so as not to remove the wheels, use a ratchet with a nozzle).
-move the fender liner aside and Unscrew the bolt that spun in the wing upwards (one bolt each side).
-throughout the length of the lower part of the bumper, Unscrew the screws.
-pulls off the bumper with side latches (edge and pull down towards you).
-pulls off with clips under the rear lights.
-pulls the bumper itself.
-if you have sensors, remove the connector.