Connecting the negative battery cable of the auxiliary battery in the engine compartment

Remove the battery cover

Raise the battery ground cable (1).
Remove special tool 2 452 007.

Courtesy of BMW OF NORTH AMERICA, INC.

Attach the negative battery cable of the vehicle electrical system support battery .

Position the negative battery terminal (2) on the negative battery terminal.
Tighten the nut on the negative battery terminal (1).

TIGHTENING TORQUE SPECIFICATIONS

Negative battery terminal
Nut	tightening torque	5 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting the negative battery cable of the 12-V dual storage system

Position negative battery cable (2) on the negative battery terminal.
Tighten nut (1) on the negative battery terminal.

TIGHTENING TORQUE SPECIFICATIONS

Negative battery terminal 12-V dual storage system
Nut	tightening torque	19 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting the negative battery cable of 48-V battery

NOTE: RISK OF DAMAGE
Damage to the 48-V battery
If a 48-V battery that is disconnected from the electrical system is activated, the battery electronics will be damaged .

Only ever activate the 48 V electrical system when the 48 V battery is fully connected up.

WARNING: Incorrect screw connection of the battery cable .
Risk of fire!

Ensure that the battery cable is screwed together with the correct nut.

Courtesy of BMW OF NORTH AMERICA, INC.

Release the negative battery cable (2) of the 48-V battery from the attachment.
Position the negative battery cable (2) of the 48-V battery on negative battery terminal.

Tighten nut (1).

TIGHTENING TORQUE SPECIFICATIONS

Negative battery cable to 48-V battery
Nut M8	tightening torque	19 Nm

Connect the connector (1) of the CAN bus and lock it.
Clip in clip (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Partially installing the cowl cover

Engage the cowl cover (1) on to the detent of the water drain channel (2).

Courtesy of BMW OF NORTH AMERICA, INC.
Correctly position the cowl cover (1) and engage it into the retaining strip starting from the side.

Courtesy of BMW OF NORTH AMERICA, INC.

Moving the windshield wiper from the service position

Turn on standby or press and hold the wiper lever (1) down again.
Wipers return to wiper 'parking position' and are once again ready to use.

Courtesy of BMW OF NORTH AMERICA, INC.

Activating the 48 V electrical system

Activate the 48 V electrical system by closing the hood.
The activation takes place automatically.

Courtesy of BMW OF NORTH AMERICA, INC.