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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> General Electrical System - Repair (G30) (1 Of 3) >> 61 21 Battery With Holder >> 61 21 090 Replacing starter unit battery - including registering battery change (530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022) >> Removing the starter unit battery

Removing the starter unit battery

High-voltage system. 

The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock! 

NOTE: TECHNICAL INFORMATION 
Zero voltage (high-voltage system switched-off) Is only displayed with In PAD mode.

Preliminary work 

WARNING: Working on 12 V electrical system.
Risk of short circuits! Risk of fire! 
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries:   Detach battery minus cables from all auxiliary batteries.