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Home >> BMW >> 2021 >> X5 M Base >> Repair and Diagnosis >> General Information >> OEM General Information >> General Orphan Data (2 Of 2) >> Disconnecting all battery ground leads

Disconnecting all battery ground leads

Preliminary work 

Precondition 

Ignition is switched off.

WARNING: Deactivate the 12-V electrical system. 
Risk of short circuits! Risk of fire! 
  • Make sure that there is no battery charger  connected to the jump start terminal in the engine compartment.