And Safety - BMW Mini series Owner's Handbook Manual

CONTROLS
Run Flat Indicator RPA
Principle
The system does not measure the tyre pressures
as such.
The system detects a pressure loss on the basis
of a comparison between the speeds at which
the individual wheels rotate while the vehicle is
in motion.
In the event of a pressure drop, the diameter
and therefore the rotational speed of the wheel
in question change. This is detected and
reported as a flat tyre.
Operating requirements
The system requires initialisation with the cor-
rect tyre pressure to ensure a reliable reporting
of the flat tyre.
The system must be reinitialised every time tyre
pressures are corrected, after each change of a
wheel or tyre, and after a trailer has been
attached or detached.
System limits
No warning can be given of extreme, sud-
den tyre failure caused by external fac-
tors.<
A natural, uniform loss of pressure in all four
tyres is not detected. Consequently, check the
tyre pressures at regular intervals.
In the following situations, the system could be
slow to respond or operate incorrectly:
> If the system has not been initialised
> When driving on snow-covered or slippery
surfaces
>
Sporty style of driving: causing the driven
wheels to spin, high lateral acceleration
> Snow chains are fitted
Initialising the system
On initialisation, the current tyre pressures are
stored as a reference for detection of a flat tyre.
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Technical features for driving comfort and safety
Online Edition for Part no. 01 40 2 607 512 - © 03/11 BMW AG Online Edition for Part no. 01 40 2 607 512 - © 03/11 BMW AG
Initialisation is started by confirming the correct
inflation pressures.
Do not initialise the system while snow chains
are fitted.
Using the button in the flashing turn
indicator lever
1. Start the engine, but do not drive off yet.
2. Press the button in the turn indicator lever
repeatedly until "SET/INFO" appears.
3. Keep the button pressed until the display
changes.
4. Press button repeatedly until the corre-
sponding symbol and "RESET" appear.
5. Keep the button pressed until the display
changes.
6. Drive off.
Initialisation is completed while the car is on
the move, without any feedback.
Initialising is completed by driving the
vehicle; this process can be interrupted at
any time. Initialising resumes automatically
when you continue your journey.<