The concept
The system does not measure the actual inflation pressure in the tires.
It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving.
In the event of a pressure loss, the diameter and therefore the rotational speed of the corresponding wheel change. This is detected and reported as a flat tire.
See also:
Opening the hood
Working in the engine compartment
Never attempt to perform any service or
repair operations on your vehicle without the
necessary professional technical training.
If you are unfamiliar with the ...
The BMW X3 xDrive35i: Class leading performance and efficiency.
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Resetting the tone settings
1. "CD/Multimedia", "Radio" or "Settings".
2. "Tone".
3. "Reset" ...