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The tyre pressure values given for low loads are
minimum values that offer you good driving
comfort characteristics.
However, you can also use the values given for
higher loads. These are permissible and will not
adversely affect the running of the vehicle.
Tyre pressure loss warning system
General notes
While the vehicle is in motion, the tyre pressure
loss warning system monitors the set tyre pres-
sure using the rotational speed of the wheels.
This enables the system to detect significant
pressure loss in a tyre. If the rotational speed of
a wheel changes as a result of a loss of tire
pressure, a corresponding warning message will
appear in the multifunction display.
You can recognise the tyre pressure loss warn-
ing by the
Run Flat Indicator active
Run Flat Indicator active
Restart with OK
Restart with OK
message, which appears in
the
Service
Service
menu of the multifunction display.
Information on the message display can be
found in the "Restarting the tyre pressure loss
warning system" section (
Important safety notes
The tyre pressure warning system does not warn
you of an incorrectly set tyre pressure. Observe
the notes on the recommended tyre pressure
(
page 345).
Y
The tyre pressure loss warning system does not
replace the need to regularly check the tyre
pressure. 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 loss warning system is not
able to warn you of a sudden loss of air, e.g. if the
tyre is penetrated by a foreign object. In the
event of a sudden loss of air, 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:
snow chains are fitted on your vehicle
R
road conditions are wintry
R
you are driving on a loose surface (e.g. sand or
R
gravel)
page 347).
Y
you adopt a very sporty driving style (corner-
R
ing at high speeds or driving with high rates of
acceleration)
you are towing a very heavy or large trailer
R
you are driving with a heavy load
R
Restarting the tyre pressure loss warn-
ing system
Restart the tyre pressure loss warning system if
you have:
changed the tyre pressure
R
changed the wheels or tyres
R
fitted new wheels or tyres
R
Before restarting, make sure that the tyre
X
pressures are set properly on all four tyres for
the respective operating conditions. The rec-
ommended tyre pressures can be found in the
tyre pressure table on the fuel filler flap.
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, this incorrect value will be
monitored.
Observe the notes in the section on tyre pres-
X
sure (
page 345).
Y
Make sure that the key is in position 2 in the
X
ignition lock (
page 133).
Y
Press ò on the steering wheel to call up
X
the menu list.
Press 9 or : on the steering wheel to
X
select the
Service
Service
Confirm by pressing a on the steering
X
wheel.
Select
Tyre pressure
Tyre pressure
X
Press a to confirm.
X
The
Run Flat
Run
Flat Indicator
Indicator active
with OK
with OK
message is shown in the multifunc-
tion display.
If you wish to confirm the restart:
Press the a button.
X
The
Tyre pressure now OK?
Tyre pressure now OK?
shown in the multifunction display.
Select
Yes
Yes
with 9 or :.
X
Press a to confirm.
X
The
Run Flat Indicator restarted
Run Flat Indicator restarted
sage is shown in the multifunction display.
After a teach-in period, the tyre pressure loss
warning system will monitor the set tyre pres-
sures of all four tyres.
Tyre pressure
menu.
with 9 or :.
active Restart
Restart
message is
mes-
Z
347
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