BMW Z4 Roadster, Owner'S Handbook Manual

Page: 269 / 344

For Australia/New Zealand
WARNING
The inflation pressures on the tyre label are ap‐
plicable only for tyres explicitly mentioned on
the label. Inflation pressures for tyres that may
be covered by the label – by size, speed cate‐
gory and load rating/load index – but not explic‐
itly mentioned on the label may be different.
Please obtain adequate inflation pressures in
accordance with the tyre manufacturer's speci‐
fications from your tyre dealer.
On the Control Display
The current tyre inflation pressure values and the
specified tyre inflation pressure values for the
mounted tyres can be displayed on the Control
Display.
To ensure that they are displayed correctly, the
tyre sizes must be stored in the system and must
have been set, see page
278 , for the mounted
tyres.
The current tyre inflation pressure value is shown
on each tyre.
The specified tyre inflation pressure value is lo‐
cated towards the bottom of the Control Display.
Checking the tyre inflation
pressure
General
Tyres heat up while driving. The tyre inflation
pressure increases with the temperature of the
tyre.
Tyres have a natural, uniform loss of tyre inflation
pressure.
Inflating devices can display a pressure that may
be up to 0.1 bar too low.
Checking using tyre inflation
pressure inscriptions on the door
pillar
The tyre inflation pressure inscriptions on the
tyre inflation pressure sign on the door pillar only
relate to cold tyres or tyres at the same tempera‐
ture as the ambient temperature.
Only check the tyre inflation pressures when the
tyres are cold, i.e.:
▷ A driving distance of max. 2 km, 1.25 miles
has not been exceeded.
▷ If the vehicle has not moved again for at least
2 hours after a journey.
Regularly check the tyre inflation pressure of the
emergency wheel in the boot and correct the
pressure if necessary.
1. Determine the specified tyre inflation pres‐
sures for the tyres when fitted to the vehicle,
see page
268 .
2. Check the tyre inflation pressure in all four
tyres, using a pressure gauge, for example.
3. Correct the tyre inflation pressure if the cur‐
rent tyre inflation pressure value deviates
from the specified value.
4. Check whether all valve caps are screwed
onto the tyre valves.
Checking using the tyre inflation
pressure inscriptions on the Control
Display
Via iDrive:
1. "CAR"
2. "Vehicle status"
3. "Tyre Pressure Monitor"
4. Check if the current tyre inflation pressures
match the specified tyre pressure value.
5. Correct the tyre inflation pressure if the cur‐
rent tyre inflation pressure value deviates
from the specified value.
Seite 269
Wheels and tyres
MOBILITY
269
Online Edition for Part no. xxx - X/18