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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Restraints - Repair >> Airbag Generator/Airbag Unit For Passenger >> 51 23... Checking hood/bonnet locks
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51 23... Checking hood/bonnet locks

Necessary preliminary tasks: 

Check hood/bonnet locks for damage; replace if necessary.

Test result Solution
Retaining tabs (1) bent Replace hood/bonnet lock
Spring (2) scratched or damaged Replace hood/bonnet lock
Movable parts stiff Replace hood/bonnet lock
Fig 1: Identifying Retaining Tabs And Spring
G06890686Courtesy of BMW OF NORTH AMERICA, INC.