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Home >> BMW >> 2021 >> M340i xDrive >> Repair and Diagnosis >> Accessories & Equipment >> Heated Glass/Defoggers >> Body Equipment -- Repair (1 Of 2) (G20) >> 51 23 Hood Latch, Locks >> 51 23 110 Removing and installing/replacing left engine compartment lid lock (330i, 330i xDrive, 330e PHEV, 330e xDrive PHEV, M340i and M340i xDrive) >> Installing hood lock

Installing hood lock

TIGHTENING TORQUE SPECIFICATION

Bonnet lock
screw
Replace screws
Tightening torque  8 Nm
G14195669Courtesy of BMW OF NORTH AMERICA, INC.

Only on vehicles with active pedestrian protection 

Disconnecting all battery ground leads 

G13797979Courtesy of BMW OF NORTH AMERICA, INC.

Activating the 48 V electrical system 

Prerequisite 

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.
TIGHTENING TORQUE SPECIFICATION

Negative battery cable to 48-V battery
Nut M8 Tightening torque  19 Nm
G14192780Courtesy of BMW OF NORTH AMERICA, INC.
G14192798Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work