accordance with the tyre manufacturer's speci‐
fications from your tyre dealer.
On the control display
The current tyre inflation pressures and the
specified tyre inflation pressures 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 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 tyre pressure loss.
Inflating devices can display a pressure that may
be up to 0.1 bar too low.
Checking using tyre inflation pressure
information on the body pillar
1.
Determine the specified tyre inflation pres‐
sures for the tyres installed on 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.
The tyre inflation pressure information on the
tyre pressure label on the body pillar only relates
to cold tyres or tyres at the same temperature 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 spare wheel in the luggage compart‐
ment and correct the pressure if necessary.
Checking using the tyre inflation pressure
information on the control display
1. "MENU"
2. "Vehicle apps"
3. "Live Vehicle"
4. "Content"
5. "Vehicle status"
6. "Tyre Pressure Monitor"
After adjusting the tyre inflation pressure
For the flat tyre monitor RPA:
Reinitialise the flat tyre monitor RPA.
For the Tyre Pressure Monitor:
The corrected tyre inflation pressures are applied
automatically. Make sure that the tyre settings
are correct.
For tyres that are not listed in the tyre inflation
pressure information on the control display, reset
the Tyre Pressure Monitor.
Speed code letter
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
F up to 240 km/h, 150 mph
W up to 270 km/h, 167 mph
Seite 334
MOBILITY
Wheels and tyres
334
Online Edition for Part no. 01405A38CB9 - VI/21
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