BMW M5 Owner's Handbook Manual page 318

MOBILITY
Do not initialise the runflat indicator RPA with
snow chains fitted, as it may give incorrect read‐
ings.
Do not reset the Tyre Pressure Monitor TPM
with snow chains fitted, as it may give incorrect
readings.
When driving with snow chains, activate M Dy‐
namic Mode briefly if necessary.
Maximum speed with snow
chains
When snow chains are fitted, do not exceed
50 km/h, 30 mph.
Tyre Pressure Monitor
TPM
Principle
The system monitors the tyre inflation pressure
in the four fitted tyres. The system warns if the
tyre inflation pressure in one or more tyres has
fallen.
General
Sensors in the tyre valves measure the tyre infla‐
tion pressure and tyre temperature.
With the tyre settings in iDrive, the system can
display the specified pressures automatically and
compare them with the current tyre inflation
pressures.
If tyres are installed which are not listed on the
tyre inflation pressure labels in the vehicle, see
page 308, for example tyres with special appro‐
val, the system must be actively reset. The cur‐
rent tyre inflation pressures are then accepted as
target values.
To operate the system, also comply with the
other information and notes in the chapter Tyre
inflation pressure, see page 308.
318
Wheels and tyres
Online Edition for Part no. 01402989787 - II/18
Safety note
WARNING
The display showing the specified tyre inflation
pressures does not replace the tyre inflation
pressure information on the vehicle. If incorrect
data has been entered into the tyre settings,
the specified tyre inflation pressures will also be
incorrect. As a result, reliable signalling of a loss
of tyre inflation pressure can no longer be guar‐
anteed. There is a danger of injury and damage
to property. Make sure that the tyre sizes of the
fitted tyres are entered correctly and that they
match the specifications on the tyres and the
tyre inflation pressure information.
Operating requirements
The following requirements must be met for the
system, otherwise reliable signalling of a loss of
tyre inflation pressure is not ensured:
▷ After every tyre or wheel change, the correct
specifications for the fitted tyres must be en‐
tered in the tyre settings, see page 318.
▷ In the case of tyres with special approval:
▷ After every tyre or wheel change, a reset
must be carried out with the correct tyre
inflation pressure.
▷ A reset must be carried out after the tyre
inflation pressure has been adjusted to a
new value.
▷ Wheels with TPM wheel electronics.
Tyre settings
General
The tyre sizes of the fitted tyres can be found in
the tyre inflation pressure information, see
page 308, or directly on the tyres.
The tyre specifications do not have to be re-en‐
tered if the tyre inflation pressure is corrected.
For summer and winter tyres, the last tyre speci‐
fications entered in each case are saved. This