Radar sensors

The radar sensors are located under the rear bumper.
The system may not be fully functional in the following situations:
▷ Dirty or icy bumper.
▷ Stickers on the bumper.
A Check Control message is displayed when the system is not fully functional.
See also:
At a glance
These overviews of buttons, switches and
displays are intended to familiarize you with your
vehicle. You will also become quickly acquainted
with the available control concepts and options. ...
BMW Maintenance System
The maintenance system directs you to required
maintenance measures and thereby supports
you in maintaining road safety and the operational
reliability of the vehicle. ...
Actions in the event of a flat tire
Run-flat tires
You can continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Do not continue driving without run-flat
tires
If the vehicle is not equipped with run-flat tires
...
