BMW 318D, Owner'S Handbook Manual

Page: 337 / 430

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 for the fitted 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.:
▷ If the vehicle has been driven a distance of no
more than 2 km, 1.25 miles.
▷ 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.
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 deviates from the
specified tyre inflation pressure.
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 deviates from the
specified tyre inflation pressure.
After adjusting the tyre inflation
pressure
For runflat indicator RPA:
Reinitialise the runflat indicator RPA.
For Tyre Pressure Monitor TPM:
The corrected tyre inflation pressures are applied
automatically. Make sure that the correct tyre
settings have been performed.
For tyres that cannot be found in the tyre infla‐
tion pressure information on the Control Display,
reset the Tyre Pressure Monitor TPM.
Speed code
Designation Maximum speed
Q up to 160 km/h, 100 mph
R up to 170 km/h/106 mph
S up to 180 km/h/112 mph
T up to 190 km/h/118 mph
H up to 210 km/h/131 mph
Seite 337
Wheels and tyres
MOBILITY
337
Online Edition for Part no. xxx - VI/19