All models 1-series (E81, E82, E87, E88) bumper mounted about the same.

Front bumper

-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.

mounting points for the front bumper BMW 1-series

front bumper mounting scheme BMW 1-series

Rear bumper

-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. 

mounting points for the rear bumper BMW 1-series

rear bumper mounting scheme BMW 1-series