Run-flat tires

The symbol identifying run-flat tires is a circle with the letters RSC on the sidewall.
Run-flat tires comprise a conditionally self-supporting tire and a special rim. The reinforcement in the sidewalls ensures that the tire can continue to be used subject to certain restrictions, even if depressurized.
For information on continuing to drive with a flat tire, refer to Indication of a flat tire on page 85.
See also:
Incoming call
Receiving calls
If the number of the caller is stored in the phone
book and is transmitted by the network, the
name of the contact is displayed. Otherwise,
only the phone number is displayed.
...
Safety
As of publication, the X6 hasn't been crash-tested by the Insurance Institute
for Highway Safety. The SUV comes with a number of standard safety features,
including antilock brakes, side-impact ai ...
Tire inflation pressure values up to100 mph/160 km/h
X3 28i
X3 35i
...
