Disconnecting High-Voltage System

WARNING: High-voltage system. Observe safety information for handling with hybrid cars. See SAFETY INFORMATION .

WARNING: The following points must be strictly observed prior to starting work.

In luggage compartment: Detach and remove storage shelf. Fold luggage compartment floor panel upwards.
Fold clip (1) of high-voltage safety connector (2) upward. See Fig 1.

Fig 1: Identifying High-Voltage Safety Connector Clip

Courtesy of BMW

Slide high-voltage safety connector (1) up to limit position in direction of arrow. See Fig 2.
NOTE: Screw must be visible in opening (2).

Fig 2: Identifying High-Voltage Safety Connector & Screw Opening

Courtesy of BMW

Release screw (1) and remove high-voltage safety connector upwards. See Fig 3.

Fig 3: Releasing High-Voltage Safety Connector Screw

Courtesy of BMW

Secure high-voltage safety connector (1) upside down (fuse (2) facing upwards) on high-voltage battery unit. Secure high-voltage safety connector with a padlock (3) to prevent it from being switched back on inadvertently. See Fig 4.

Fig 4: Identifying High-Voltage Safety Connector Fuse & Padlock Position

Courtesy of BMW

WARNING: Mandatory steps prior to carrying out further repair work:

Ensure instrument panel is disconnected from power supply (zero voltage)
Pay attention to active high-voltage warnings (indicator light, check control, etc.), determine cause and correct problem

Fig 5: Identifying Instrument Panel High-Voltage Disable Indicator

Courtesy of BMW

WARNING: Danger to life! If it cannot be established beyond doubt that the instrument cluster is de-energised, work is not permitted to begin. Before work begins, a qualified, certified electrician must verify that the system has been disconnected from the power supply (1000V AC) using appropriate measuring devices and procedures.