Mercedes-Benz E-Class Saloon Owner's Manual page 427

Tyre pressure
424
phones, two-way radios) that may be being
operated in or near the vehicle.
Checking the tyre pressure electroni-
cally
Make sure that the key is in position 2
X
( page 179) in the ignition lock.
Y
Press the = or ; button on the steer-
X
ing wheel to select the
Press the 9 or : button to select
X
Tyre Tyre pressure pressure.
Press the a button.
X
The current tyre pressure for each wheel
will be displayed in the multifunction dis-
play.
If the vehicle has been parked for over
20 minutes, the
displayed after a few minutes of displayed after a few minutes of
driving driving message appears.
After a teach-in period, the tyre pressure
monitor automatically detects new wheels or
new sensors. As long as a clear allocation of
the tyre pressure values to the individual
wheels is not possible, the
monitor active monitor active
instead of the tyre pressure display. The tyre
pressures are already being monitored.
If an emergency spare wheel is fitted, for a
few minutes the system may continue to
show the tyre pressure of the wheel that has
been removed. If this occurs, note that the
value displayed for the position where the
spare wheel is fitted is not the same as the
current tyre pressure of the emergency spare
wheel.
Warning messages of the tyre pressure
monitor
If the tyre pressure monitor detects a pres-
sure loss in one or more tyres, a warning mes-
sage is shown in the multifunction display and
the yellow tyre pressure monitor warning
lamp comes on.
If the Please correct tyre pressure Please correct tyre pressure
R
message appears in the multifunction dis-
Service Service menu.
Tyre pressures Tyre pressures will will be be
Tyre pressure Tyre pressure
display message is shown
play, the tyre pressure in at least one tyre is
too low and must be corrected at the next
opportunity.
If the Check tyre(s) Check tyre(s)
R
the multifunction display, the tyre pressure
in one or more tyres has dropped signifi-
cantly and the tyres must be checked.
If the Warning tyre defect Warning tyre defect
R
appears in the multifunction display, the
tyre pressure in one or more tyres has drop-
ped suddenly and the tyres must be
checked.
Observe the instructions and safety notes in
the display messages in the "Tyres" section
( page 322).
Y
If the wheel positions on the vehicle are inter-
changed, the tyre pressures may be displayed
for the wrong positions for a short time. After
a few minutes of driving, this is rectified and
the tyre pressures are displayed for the cor-
rect positions.
Restarting the tyre pressure monitor
When you restart the tyre pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tyre pressures as the refer-
ence values for monitoring. In most cases, the
tyre pressure monitor will automatically
detect the new reference values after you
have changed the tyre pressure. However,
you can also define reference values man-
ually as described here. The tyre pressure
monitor then monitors the new tyre pressure
values.
Use the table on the inside of the fuel filler
X
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures ( page 420).
Y
Make sure that the key is in position 2 in the
X
ignition lock.
Press the = or ; button on the steer-
X
ing wheel to select the
message appears in
message
Service Service menu.