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Home >> BMW >> 2021 >> M440i >> Repair and Diagnosis >> General Information >> OEM General Information >> General Orphan Data (2 Of 3) >> Install backrest side section

Install backrest side section

Installing the backrest side section with the side airbag 

WARNING: Airbag unit. 
Danger! Immobilization period-threatening injuries! 
WARNING: Pyrotechnic components. 
Danger! Immobilization period-threatening injuries! 
NOTE: To provide a better overview: Schematic diagram with partially hidden components.

Activate electrical system

NOTE: TECHNICAL INFORMATION 
The vehicle-specific specifications described in the further information must be followed!
G15581952Courtesy of BMW OF NORTH AMERICA, INC.

Activating the 48 V electrical system 

Precondition 

Ignition is switched off.

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.
G14192798Courtesy of BMW OF NORTH AMERICA, INC.