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Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> General Electrical System -- Repair (G42) >> 61 21 Vehicle Battery >> 61 21 006 Removing and installing 48V battery (M240i and M240i xDrive 2024-) >> Installing the 48 V battery

Installing the 48 V battery

TIGHTENING TORQUES SPECIFICATION

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

Battery tray to body 
M6 screw tightening torque  8 Nm
TIGHTENING TORQUES SPECIFICATION

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 TORQUES SPECIFICATION

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

Follow-up work