BMW 8 Coupe Series, Owner'S Handbook Manual

Page: 324 / 390

Performing an initialisation
On initialisation, the current tyre pressures are
saved as a reference for detection of a flat tyre.
Initialisation is started by confirming the correct
tyre inflation pressures.
When driving with snow chains fitted, do not initi‐
alise the system.
Via iDrive:
1. "CAR"
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.
Initialisation 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 characteris‐
tics, for example steering and braking. Tyres
with run-flat properties allow a limited level of
stability to be maintained. There is a danger of
accidents. Do not continue driving if the vehicle
is fitted with normal tyres. Comply with the
notes on run-flat tyres and continuing to drive
with these tyres.
Flat tyre message
A yellow warning lamp is illuminated in
the instrument cluster.
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.
2. Check whether the vehicle is equipped with
standard tyres or run-flat tyres.
The symbol identifying run-flat tyres, see
page
311 , is a circle with the letters RSC on
the tyre side wall.
What to do in the event of a flat
tyre
Standard tyres
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.
Seite 324
MOBILITY
Wheels and tyres
324
Online Edition for Part no. xxx - VI/18