Welcome lamps
When parking the vehicle, leave the switch in
position 
or
the parking and interior
lamps light up briefly when the vehicle is unlocked.
Activating/deactivating
1. "Settings"
2. "Lighting"
3. "Welcome light"
The setting is stored for the remote control currently in use.
See also:
Long-term vehicle storage
Your service center can advise you on what to
consider when storing the vehicle for longer
than three months. ...
Data memory
Your vehicle records data relating to vehicle operation,
faults and user settings. These data are stored in the remote control and can be
read out
with suitable devices, particularly when the ve ...
Enabling operation in the rear
Only possible via the iDrive in the front.
1. "Settings"
2. "Allow rear control"
3. Select the desired priority.
...