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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 21 003 Removing and installing the 12V dual storage system (all 7' series models 2016-2022) >> Installing the 12 V dual storage system

Installing the 12 V dual storage system

WARNING: Incorrect screw connection of the positive battery cable. 
Risk of fire! 
  • Ensure that the positive battery cable is screwed with the correct nut.
G14198385Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Positive battery terminal to battery 
Nut tightening torque  5 Nm

Check 

G14198387Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The guide (1) or snap-in lugs (2) are damaged.

Measure

TIGHTENING TORQUE SPECIFICATIONS

Retainer 12-V dual storage system 
Nut M8 Tightening torque  15 Nm
G14198384Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work