BMW 3: Locking the doors and windows in the rear
BMW 3 Series G20 (2018-2026) Owners Manual / Transporting children safely / 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.
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Child safety latch is unlocked.
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Child safety latch is locked.
The door can now be opened from the outside only.
Safety switch for the rear
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Press the button on the driver's
door.
This locks various functions so that they cannot be operated from the rear.
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Start/Stop button
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
Auto Start/Stop function
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.
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Connection for potential compensation lines
The isolation monitoring determines whether the isolation resistance between
active high-voltage
components (e.g. high-voltage cables) and ground is above or below a required
minimum value. If
the isolation resistance falls below the minimum value, the danger exists that
the vehicle parts will be
Convenience charging electronics (KLE)
Convenience charging electronics
The convenience charging electronics enable communication between the vehicle
and charging
station of the AC voltage supply in order to charge the high-voltage battery
unit. The convenience
charging electronics convert the AC voltage into high-voltage direct curre
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