Mercedes-Benz GLK 300 4MATIC 2012, Owner'S Manual

Page: 358 / 381

Tyre pressure loss warning system
Important safety notes
While the vehicle is in motion, the tyre pres-
sure loss warning system monitors the set
tyre pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tyre. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appear in the multifunction dis-
play.
The tyre pressure warning system does not
warn you of an incorrectly set tyre pressure.
Observe the notes on the recommended tyre
pressure (
Y
page 353).
The tyre pressure loss warning system does
not replace the need to regularly check your
vehicle's tyre pressures, since an even loss of
pressure on several tyres at the same time
cannot be detected by the tyre pressure loss
warning system.
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tyre is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering manoeuvres.
The function of the tyre pressure loss warning
system is limited or delayed if:
R
snow chains are fitted to your vehicle's
tyres.
R
road conditions are wintry.
R
you are driving on sand or gravel.
R
you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration).
R
you are towing a very heavy or large trailer.
R
you are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tyre pressure loss warn-
ing system
Restart the tyre pressure loss warning system
if you have:
R
changed the tyre pressure
R
changed the wheels or tyres
R
fitted new wheels or tyres
X
Before restarting, consult the table of tyre
pressures on the inside of the fuel filler flap
to ensure that the tyre pressure in all four
tyres is set correctly for the respective
operating conditions.
The tyre pressure loss warning system can
only give reliable warnings if you have set
the correct tyre pressure. If an incorrect
tyre pressure is set, these incorrect values
will be monitored.
X
Observe the notes in the section on tyre
pressures (
Y
page 353).
Restarting using the 4-button multifunc-
tion steering wheel
X
Make sure that the key is in position 2 in
the ignition lock.
X
Press the V button to select Tyre Tyre
pressure Menu: R pressure Menu: R .
X
Press the C button.
The RFI active Restart: R RFI active Restart: R message
appears in the multifunction display.
X
Press the C button.
The Tyre Tyre press. press. OK? OK? message appears in
the multifunction display.
If you wish to confirm the restart:
X
Press the W button.
The Run Flat Indicator restarted Run Flat Indicator restarted
message appears in the multifunction dis-
play.
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
or
Tyre pressure
355
Whe
el
s
and
tyres
Z