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Nominal pressure
The nominal pressure for the tires on the front
and rear axles is displayed.
The specified nominal pressures take the in-
fluence of driving and outside temperature on
the tire temperature into account. The appro-
priate nominal pressure is always displayed,
independent of the weather situation, tire tem-
peratures and travel times.
The displayed nominal pressure may change
and may differ from the tire inflation pressure
details on the door pillar of the driver's door.
The tire inflation pressure can thus be cor-
rected to the value of the displayed target
pressures.
The nominal pressure is immediately adjusted
if the vehicle load status is changed in the tire
settings.
Tire conditions
General information
Tire and system status are indicated by the
color of the wheels and a text message on the
control display.
Any existing messages may not be deleted if
the nominal pressure is not reached after the
tire inflation pressure is corrected.
All wheels green
▷
The system is active and bases warnings
on the target pressures.
▷
For tires with special approval: the system
is active and bases warnings on the tire
inflation pressures stored during the last re-
set.
One to four yellow wheels
A flat tire or major tire pressure loss has occur-
red in the indicated tires.
Online Edition for Part no. 01405A5F6E0 - VI/22
Wheels and tires
Gray wheels
It may not be possible to identify tire pressure
losses.
Possible causes:
▷
Malfunction.
▷
During tire inflation pressure measurement,
after confirmation of the tire settings.
▷
For tires with special approval: a reset is
performed for the system.
For tires with special approval:
performing a reset
1.
"MENU"
2.
"Vehicle apps"
3.
"Vehicle status"
4.
"Tire Pressure Monitor"
5.
Make sure that correct tire settings have
been made.
Tire settings, refer to page 306.
6.
Turn on drive-ready state and do not drive
off.
7.
Reset tire pressure: "Perform reset".
8.
Drive off.
The wheels are displayed in gray and the fol-
lowing is displayed: "Resetting tire pressure...".
After a travel time of several minutes, the set
tire inflation pressures are accepted as the
predefined tire inflation pressures. The reset is
completed automatically while driving.
After a successfully completed reset, the
wheels on the control display are shown in
green and the following is displayed: "Reset
successful."
You may interrupt this trip at any time. When
you continue driving the reset resumes auto-
matically.
MOBILITY
307
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