BMW 3: Locking the doors and
windows in the rear
General information
In certain situations it may be advisable to secure
the rear doors and windows, for instance when
transporting children.
Doors
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Unlock or lock the safety switch on the rear
doors with the integrated key.
Child safety latch is unlocked.
Child safety latch is locked.
The door can now be opened from the outside
only.
Safety switch for the rear
Press the button on the driver's
door.
This locks various functions so that they cannot
be operated from the rear.
READ NEXT:
Concept
Pressing the Start/Stop button
switches drive-ready state on or
off.
Steptronic transmission: the
drive-ready state is switched on
when you depress the brake pedal while pressing
the Start/St
Concept
The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, for instance in traffic congestion or at traffic
lights. Drive-ready state remains switched on.
SEE MORE:
The Electrical Machine Electronics is made up internally of three
subcomponents:
Bidirectional DC/AC converter
Unidirectional DC/DC converter
EME control unit
The Electrical Machine Electronics performs the following functions using the
subcomponents
mentioned:
Torque restriction of the dri
The regenerative braking makes possible brake energy regeneration. The
electrical machine works
here as an alternator and brakes the gears via automatic transmission -
propeller shaft - rear axle
differential - output shafts. The high-voltage battery unit is charged with the
energy