Power Distribution

Power Distribution

















The battery is installed in the trunk of the E46 and features new lead/calcium electrolyte for true maintenance free operation. The water usage of this battery is low throughout its service life.

The Battery Safety Terminal is installed at the positive terminal of the battery. A repair kit is available for the BST

The E46 is produced with a vehicle specific wiring harness. This harness is based on the ordered optional equipment of the vehicle so that it contains the proper connectors and connections. Options can not be added at a later time without replacing the entire harness.

Specific kits are available to repair the harness in the event of an accident or damage to the harness. These repair kits include:
- Engine compartment
- Vehicle's rear area

If the entire harness need to be replaced, a new harness with the maximum equipment or options must be ordered. This is the only harness that will be stocked in the parts system.

There are three locations for fuses on the E46:
- The fuse holder above the glove box
- The E-Box in the engine compartment
- In the trunk near the battery

The E46 uses high amperage fuses for circuit protection. The battery power supply is protected by a 250 amp fuse in the trunk.

Grounds