display MERCEDES-BENZ CLA-CLASS 2013 Owners Manual

pressure warning lamp to inform you of the
malfunction by flashing for approximately one
minute and then remaining lit. When the fault
has been rectified, the tyre pressure warning
lamp goes out after you have driven for a few
minutes.
The tyre pressure values indicated by the on-
board computer may differ from those meas-
ured at a filling station using a pressure
gauge. The tyre pressures shown by the on-
board computer refer to those measured at
sea level. At high altitudes, the tyre pressure
values indicated by a pressure gauge are
higher than those shown by the on-board
computer. In this case, do not reduce the tyre
pressures.
The operation of the tyre pressure monitor
can be affected by interference from radio
transmitting equipment (e.g. radio head-
phones, two-way radios) that may be being
operated in or near the vehicle.
Checking the tyre pressure electroni-
callyXMake sure that the key is in position 2 in
the ignition lock ( Y page 145).XPress the = or ; button on the steer-
ing wheel to select the Service menu.XPress the 9 or : button to select
Tyre pressure .XPress the a button.
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 Tyre pressures will be
displayed after a few minutes of
driving message appears.
After a teach-in period, the tyre pressure
monitor automatically recognises new
wheels or new sensors. As long as a clear
allocation of the tyre pressure values to the
individual wheels is not possible, the Tyre
pressure monitor active display mes-
sage is shown instead of the tyre pressure
display. The tyre pressures are already being
monitored.
i If an emergency spare wheel is fitted, the
system may continue to show the tyre pres-
sure 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 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 light
comes on.
R If the 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 Tyre pressure Check tyre(s)
message appears in the multifunction dis-
play, the tyre pressure in one or more tyres
has dropped significantly and the tyres
must be checked.
R If the Tyre pressure Caution, tyre
defect message appears in the multifunc-
tion 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 248).
i If the wheel positions on the vehicle are
interchanged, the tyre pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving and the tyre pressures
are displayed for the correct positions.
Tyre pressure323Wheels and tyresZProCarManuals.com

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.
XUse 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 319).XMake sure that the key is in position 2 in
the ignition lock.XPress the = or ; button on the steer-
ing wheel to select the Service menu.XPress the 9 or : button to select
Tyre pressure .XPress the a button.
The multifunction display shows the cur-
rent tyre pressure for the individual tyres or
the Tyre pressures will be dis‐
played after a few minutes of driv‐
ing message.XPress the : button.
The Use current pressures as new
reference values message appears in
the multifunction display.
If you wish to confirm the restart:
XPress the a button.
The Tyre press. monitor restarted
message appears in the multifunction dis-
play.
After you have driven for a few minutes, the
system checks whether the current tyre
pressures are within the specified range.The new tyre pressures are then accepted
as reference values and monitored.
If you wish to cancel the restart:
XPress the % button.
The tyre pressure values stored at the last
restart will continue to be monitored.
Changing a wheel
Flat tyre
You can find information on what to do in the
event of flat tyre in the "Flat tyre" section
( Y page 298). Information on driving with
MOExtended tyres in the event of a flat tyre
can be found under "Breakdown assistance"
( Y page 298).
Vehicles with an emergency spare
wheel: in the event of a flat tyre, the emer-
gency spare wheel is fitted according to the
description under "Fitting a wheel"
( Y page 325).
Interchanging the wheels
GWARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions.
The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions.
! On vehicles fitted with a tyre pressure
monitor, electronic components are loca-
ted in the wheel.
Tyre-fitting tools should not be applied in
the area of the valve, as this could damage
the electronic components.
Only have tyres changed at a qualified spe-
cialist workshop.
324Changing a wheelWheels and tyres
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When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 80 km/h.
Snow chains must not be fitted to emergency
spare wheels.
General notes
i Apart from some country-specific var-
iants, the vehicles are not equipped with an
emergency spare wheel. Emergency spare
wheels are specific to the vehicle. For more
information on which emergency spare
wheels are approved for your vehicle, con-
sult a qualified specialist workshop.
You should regularly check the pressure of all
your tyres, including the emergency spare
wheel, particularly prior to long trips, and cor-
rect the pressure as necessary (Y page 319).
The value on the wheel or as given in the
"Wheels and tyres" section ( Y page 332) is
valid.
i If you are driving with the collapsible
emergency spare wheel fitted, the tyre
pressure loss warning system or the tyre
pressure monitor cannot function reliably.
Only restart the tyre pressure loss warning
system/tyre pressure monitor when the
defective wheel has been replaced with a
new wheel.
Vehicles with tyre pressure monitor:
after mounting an emergency spare wheel,
the system may still display the tyre pres-
sure of the removed wheel for a few
minutes. The value displayed for the moun-
ted emergency spare wheel is not the same
as the current tyre pressure of the emer-
gency spare wheel.
An emergency spare wheel may also be fitted
against the direction of rotation. Observe the
time restriction on use as well as the speed
limitation specified on the emergency spare
wheel.
Replace the tyres after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
Removing the emergency spare wheel
Vehicles with the "Minispare" emergency spare
wheel:
The "Minispare" emergency spare wheel is
secured in emergency spare wheel bag : in
the boot.
XOpen the boot lidXRelease securing straps ; on emergency
spare wheel bag :.XRemove emergency spare wheel bag :
with the "Minispare" emergency spare
wheel.XOpen emergency spare wheel bag : and
remove the "Minispare" emergency spare
wheel.
Observe the instructions and safety notes in
the "Fitting a wheel" section ( Y page 325).
Technical data
"Minispare" emer-
gency spare wheelTyresSteel wheelT 125/80 R17 99 M
Tyre pressure: 420 kPa
(4.2 bar/61 psi)3.5 B x 17 H2
ET 19.5332Emergency spare wheelWheels and tyres
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