Mercedes-Benz C-Class, Owner'S Manual

Page: 438 / 489

new sensors. As long as a clear allocation of
the tyre pressure values to the individual
wheels is not possible, the Tyre pressure Tyre pressure
monitor active monitor active display message is shown
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.
R
If the Please correct tyre pressure Please correct tyre pressure
message appears in the multifunction dis-
play, the tyre pressure in at least one tyre is
too low and must be corrected at the next
opportunity.
R
If the Check tyre(s) Check tyre(s) message appears in
the multifunction display, the tyre pressure
in one or more tyres has dropped signifi-
cantly and the tyres must be checked.
R
If the Warning, tyre defect Warning, tyre defect appears in
the multifunction display, the tyre pressure
in one or more tyres has dropped suddenly
and the tyres must be checked.
Observe the instructions and safety notes in
the display messages in the "Tyres" section
(
Y
page 343).
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.
X
Use the table on the inside of the fuel filler
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 (
Y
page 432).
X
Make sure that the key is in position 2 in the
ignition lock (
Y
page 181).
X
Use ò on the steering wheel to call up
the list of menus.
X
Press the 9 or : button on the steer-
ing wheel to select the Service Service menu.
X
Press the a button.
X
Press the 9 or : button to select
Tyre pressure Tyre pressure .
X
Press the a button.
The multifunction display shows the cur-
rent tyre pressure for the individual tyres or
the Tyre pressures will be dis‐ Tyre pressures will be dis‐
played played after after aa few few minutes minutes of of driv‐ driv‐
ing ing message.
X
Press the : button.
The Use current pressures as new Use current pressures as new
reference values reference values message appears in
the multifunction display.
If you wish to confirm the restart:
X
Press the a button.
The Tyre press. monitor restarted Tyre press. monitor restarted
message appears in the multifunction dis-
play.
Tyre pressure
435
Whe
el
s
and
tyres
Z