BMW M5 Owner's Handbook Manual page 324

MOBILITY
Performing an initialisation
On initialisation, the current tyre pressures are
saved as a reference for detection of a flat tyre.
The initialisation is started by confirming the cor‐
rect tyre inflation pressures.
When driving with snow chains fitted, do not initi‐
alise the system.
Via iDrive:
1. "My Vehicle"
2. "Vehicle status"
3. "Flat Tyre Monitor"
4. Switch on drive-ready state but do not drive
off.
5. Start the initialisation: "Perform reset"
6. Drive off.
Initialising is completed during the journey; this
process can be interrupted at any time.
Initialising resumes automatically when you con‐
tinue your journey.
Messages
General
Dynamic Stability Control DSC is activated if
necessary as soon as the message for a flat tyre
appears.
Safety note
WARNING
A damaged normal tyre with too little or no tyre
inflation pressure impairs driving properties, for
example steering and braking. There is a dan‐
ger of accidents. Do not continue driving. Re‐
pair the flat tyre or replace the wheel.
Flat tyre message
A yellow warning lamp is illuminated in
the instrument cluster.
324
Wheels and tyres
Online Edition for Part no. 01402989787 - II/18
In addition, a symbol with a Check Control mes‐
sage is shown on the Control Display.
Symbol Possible cause
There is a flat tyre or substantial loss
of tyre inflation pressure.
Measure
1. Reduce your speed and carefully stop the ve‐
hicle. Avoid violent or sudden braking and
steering manoeuvres.
What to do in the event of a flat
tyre
1. Identify the damaged tyre.
To do this, check the tyre inflation pressure in
all four tyres, for example using the tyre pres‐
sure indicator of a flat tyre kit.
If all four tyres are inflated to the correct tyre
inflation pressures, the runflat indicator might
not have been initialised. In this case initialise
the system.
If it is not possible to identify tyre damage,
contact a Service Partner of the manufacturer
or another qualified Service Partner or a spe‐
cialist workshop.
2. Repair the flat tyre, for example using a flat
tyre kit or by changing the wheel.
System limits
In the following situations, the system could be
slow to respond or operate incorrectly:
▷ A natural, even loss of tyre inflation pressure
in all four tyres that occurs over time is not
detected. Consequently, check the tyre infla‐
tion pressure at regular intervals.
▷ No warning can be given in the event of sud‐
den tyre failure caused by external factors.
▷ If the system has not been initialised.
▷ When driving on snow-covered or slippery
surfaces.