The concept

Pressing the Start/Stop button switches the ignition on or off and starts the engine.
Automatic transmission: the engine starts if the brake is depressed when the Start/Stop button is pressed.
Manual transmission: the engine starts if the clutch is depressed when the Start/Stop button is pressed.
See also:
Care products
Regular cleaning and care contributes significantly to the value retention of
your BMW.
BMW recommends cleaning and caring for your vehicle with products that are approved
by BMW for this purpose ...
Weights
The values preceding the slash apply to vehicles
with manual transmission; the values following
the slash apply to vehicles with automatic transmission.
...
Buttons at a glance
Buttons at a glance
1 System on/off, interrupt
2 Resume speed
3 Store speed
4 Reduce distance
5 Store, maintain/change speed
6 Increase distance ...
