Explosion hazard
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
Strictly no flames, sparks, naked light or smoking!
A highly explosive mixture of electrolytic gas is created when batteries are charged. The rooms where charging is carried out must therefore always be well ventilated.
Avoid the formation of sparks when handling cables, wiring and electrical devices.
Turn the ignition lock to the 0 position before disconnecting or connecting the battery.
Do not place tools or any similar object on the battery (danger of short-circuiting and explosion!).