The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Check the tire inflation pressure regularly
Check and, if necessary, correct the tire inflation
pressure at least twice a month and before starting
on a long trip.
Low tire inflation pressure increases rolling resistance
and thus raises ...
Driving through water
Maximum water depth:
▷ BMW X5: 20 inches/50 cm.
▷ BMW X6: 17 inches/45 cm.
Adhere to water depth and speed limitations
Only drive through water up to the above-mentioned
depth at n ...
Deactivating HDC
Press the button again and the
LED goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h. ...
