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Home >> BMW >> 2021 >> 750i xDrive >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> General Electrical System -- Repair (G12) (1 Of 2) >> 61 21 Battery (12V And 48V) >> 61 21 007 Replacing 48-V battery - with registering battery replacement (740e xDrive PHEV 2017-2019) >> Installing the 48 V battery

Installing the 48 V battery

TIGHTENING TORQUE SPECIFICATIONS

Battery tray to body 
M8 screw tightening torque  19 Nm
G14231012Courtesy of BMW OF NORTH AMERICA, INC.

The detents (1)  must engage audibly.

G14231011Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Battery tray to body 
M6 screw tightening torque  8 Nm
TIGHTENING TORQUE SPECIFICATIONS

Coolant flange screw 
Screw M6x20 tightening torque  8 Nm
G14307246Courtesy of BMW OF NORTH AMERICA, INC.
WARNING: Incorrect screw connection of the positive battery cable. 
Risk of fire! 
  • Ensure that the positive battery cable is screwed with the correct  nut.
TIGHTENING TORQUE SPECIFICATIONS

Positive battery cable to 48-V battery 
Nut M8 tightening torque  19 Nm
G14231007Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work