See also:

Removing the remote control from the ignition lock
Do not forcibly pull the remote control out of the ignition lock Do not forcibly pull the remote control out of the ignition lock as this may cause damage.◀ Before removing the remote c ...

Vehicle battery
Battery careThe battery is 100 % maintenance-free, the electrolyte will last for the life of the battery when the vehicle is operated in a temperate climate. Your BMW center will be glad to advise ...

Charging the battery
In the vehicle, only charge the battery via the terminals, in the engine compartment with the engine off. ...