Power Distribution

Power Distribution







The new maintenance free battery is connected to the power distribution system by the Battery Safety Terminal (BST). The BST is activated by the MRS II system in the event of a severe impact preventing the main B+ cable to the starter and generator from shorting to ground.

Battery Safety Terminal (BST)







Glove Box Mounted Fuse Panel












The power distribution center of the E46 is located in the glove box. The fuse panel is accessed by rotating two twist locks 90° allowing it to drop into view as shown.

The fuse panel includes fuses 1 - 71

The two large red 50 amp fuses (F36, F37) provide power protection for the IHKA blower relay and Secondary air injection pump.

Located above the fuse panel are additional high amperage power distribution fuses (F101 - F107).

This location replaces the front passenger seat (under carpet) and trunk location of the E38/E39 vehicles.

The electronics carrier is located forward of the glove box. It contains the following components as noted in the photograph.