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400 Wheels and tyres
400
Tyre pressures will be displayed after a few
R
minutes of
driving: current values are not yet
known to the system. The pressure/tempera-
ture values of each tyre are displayed as soon
as they are known to the system.
Tyre pressure monitor
active: the teach-in
R
process of the system is not yet complete. The
tyre pressures are already being monitored.
Compare the current tyre pressure with the
#
recommended tyre pressure for the current
operating condition (
page 398). Addition-
/
ally, observe the notes on cold tyres
(
page 397).
/
%
The values displayed in the driver's display
may deviate from those of the tyre pressure
gauge as they refer to sea level. At high eleva-
tions, the tyre pressure values indicated by a
tyre pressure gauge are higher than those
shown in the driver's display.
Bear in mind the following related topic:
Notes on tyre pressure (
page 397)
R
/
R R est
estar arting t
ting the tyr
he tyre pr
e pressur
essure monit
e monitor oring syst
R R eq equir uirements:
ements:
The recommended tyre pressure is correctly
R
set for the respective operating status on each
of the four wheels (
page 397).
/
Restart the tyre pressure monitoring system in the
following situations:
The tyre pressure has changed.
R
The wheels or tyres have been changed or
R
newly tted.
Driver's display:
©
Service
4
5
Select
Tyre pressure
and con rm with a.
#
Swipe downwards on Touch Control on the
#
steering wheel.
The
Use current tyre pressures as new refer-
ence values?
display.
Select
Yes
#
The
Tyre pressure monitor restarted
is shown in the driver's display.
Current warning messages are deleted and
ing system
em
the yellow h warning lamp goes out.
A er you have been driving for a few minutes,
the system checks whether the current tyre
pressures are within the speci ed range. The
current tyre pressures are then accepted as
reference values and monitored.
If the tyre pressure levels are not within the
speci ed range, the
sure
message appears.
Bear in mind the following related topic:
Notes on tyre pressure (
R
message is shown in the driver's
and con rm the restart with a.
message
Please correct tyre pres-
page 397)
/
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