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Home >> BMW >> 2018 >> 330e >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System - Repair -- (F30 Hybrid 330E) >> 12 42 Starter Line >> 12 42 510 Removing and installing/replacing the positive battery cable (After a vehicle diagnosis) (between starter and battery in the engine compartment) >> Removing positive battery cable between starter motor and engine compartment vehicle battery

Removing positive battery cable between starter motor and engine compartment vehicle battery

WARNING: 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 
With the ignition off and the high-voltage safety plug disconnected, the Check Control message "High voltage system faulty" is displayed by default.
The message "High-voltage system switched off" (absence of voltage) is only displayed when the ignition is switched on.

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.
G14545098Courtesy of BMW OF NORTH AMERICA, INC.