Mercedes-Benz S-Class 2011 Operator's Manual page 491

X
Press the 9 or : button to select
Tire Pressure.
X
Press the a button.
The current tire pressure for each wheel will
be displayed in the multifunction display.
If the vehicle has been parked for longer than
Tire Pressures
20 minutes, the
Displayed After Driving A Few
Minutes
message appears in the display.
After a teach-in period, the tire pressure
monitor automatically recognizes new wheels
or new sensors. As long as a clear allocation
of the tire pressure values to the individual
wheels is not possible, the
Monitor Active
message is shown instead
of the tire pressure display. The tire pressures
are already being monitored.
i If a spare wheel/emergency spare wheel
is mounted, the system may continue to
show the tire pressure of the wheel that has
been removed for a few minutes. If this
occurs, note that the value displayed for
the position where the spare wheel is
mounted is not the same as the spare
wheel/emergency spare wheel's current
tire pressure.
TPMS warning messages
If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display. A warning tone also
sounds and the tire pressure warning lamp
lights up in the instrument cluster.
For each tire that is affected by a significant
loss of pressure, the tire pressure is shown in
yellow.
Correct Tire Pressure
If the
appears in the multifunction display:
X
Check the tire pressure on all four wheels
and correct it if necessary.
i If the wheel positions on the vehicle are
interchanged, the tire pressures may be
displayed for the wrong positions for a
Restarting the tire pressure monitor
When you restart the tire pressure monitor,
all existing warning messages are deleted and
Tire Pressure
the warning lamps go out. The monitor uses
the currently set tire pressures as the
reference values for monitoring.
The TPMS must be restarted when you set the
tire pressure to a new value (as a result of
changed handling or load characteristics, for
example). The TPMS then monitors the new
tire pressure values.
i
Restart the tire pressure monitor after you
have set the tire pressure to the value
recommended for the desired driving
situation (
pressures on cold tires. Comply with the
recommended tire pressures on the Tire and
Loading Information placard on the B-pillar on
the driver's side Additional tire pressure
values for driving at high speeds or with heavy
loads can be found in the Tire Pressure table
on the inside of the fuel filler flap.
message
X
X
X
short time. This is rectified after a few
minutes of driving, and the tire pressures
are displayed for the correct positions.
G
Warning
It is the driver's responsibility to set the tire
inflation pressure to the recommended cold
tire inflation pressure. Underinflated tires
affect the ability to steer or brake the vehicle.
You might lose control over the vehicle.
Canada only: in most cases, the tire
pressure monitor recognizes the new
reference values automatically. However,
you can also define reference values
manually as described here.
Y page 483). Only correct tire
Make sure that the tire pressure is correct
on all four wheels.
Make sure that the SmartKey is in position
2 in the ignition lock.
Press the = or ; button to select the
Service
menu.
Tire pressure
Z
489