Technical information

The vehicle must not be pulled or towed. Transportation is possible exclusively on a truck. Any other variants of towing
away a vehicle are forbidden. Pulling the vehicle out of the danger area is possible. Securing the vehicle via its wheels is
recommended.
When lifting the vehicle, the areas surrounded by red colour may not be used as a supporting area (exception: after a
fire)
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Expert guide BMW 530Le F18PHEV
1 Introduction
This guide is to be followed after a severe accident when the emergency service personnel is in doubt about the state of
the high-voltage system.
Always observe country-specific guidelines.
In case the intrinsic safety of the vehicle is suspected not to be present any longer and a dangerous situation for the
emergency service personnel is to be assumed, a qualified electrical specialist needs to be consulted.
In case of severe accidents with the risk of damage to the high-voltage battery being present, the high-voltage battery is
automatically disconnected from the high-voltage system.
Prior to any further work on the vehicle (e.g. repair, recycling), an inspection must be carried out by suitably qualified
personnel, according to the BMW specification.
The high-voltage system is generally to be considered intrinsically safe. In the event of an airbag deployment, there are
two switch-off mechanisms in the vehicle that switch off the high-voltage system. The system is switched off by
disconnecting the safety battery terminal at the 12-volt positive terminal of the battery, as well as via a CAN message that
disconnects the voltage supply of the battery contactors in the high-voltage battery, which causes the system to switch
off. The high-voltage system (IT system) consists of two separate circuits (HV+, HV-), which are completely decoupled
from the 12 V vehicle electrical system. The electrical GND (-) has no high-voltage potential. Only the housings of the
components are connected to GND to allow potential compensation. In order to provoke electrical damage, a person
needs to be in-between the positive and the negative HV circuit. If no damaged high-voltage cables (orange-coloured
lines) or high-voltage components are touched, an electric shock cannot occur under any circumstances.
Important: The instructions described in the following are intended for use exclusively on the BMW F18PHEV.
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