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Tyre pressure
422
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 420).
Y
The tyre pressure loss warning does not
replace the need to regularly check the tyre
pressures. An even loss of pressure on sev-
eral tyres at the same time cannot be detec-
ted 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:
snow chains are fitted to your vehicle's
R
tyres.
road conditions are wintry.
R
you are driving on sand or gravel.
R
you adopt a very sporty driving style (cor-
R
nering 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 (in the
R
vehicle or on the roof).
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 recommended 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, these incorrect values
will be monitored.
Observe the notes in the section on tyre
X
pressures (
page 420).
Y
Make sure that the key is in position 2 in the
X
ignition lock (
page 179).
Y
Press the = or ; button on the steer-
X
ing wheel to select the
Press the 9 or : button on the steer-
X
ing wheel to select the
menu.
Press the a button.
X
The
Run Flat Indicator active
Run Flat Indicator active
Restart with
Restart
with OK OK
multifunction display.
If you wish to confirm the restart:
Press the a button.
X
The
Tyre press. now OK?
Tyre press. now OK?
appears in the multifunction display.
Press the 9 or : button to select
X
Yes
Yes.
Press the a button.
X
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.
If you wish to cancel the restart:
Press the % button.
X
or
When the
Tyre
Tyre press.
press. now
X
appears, press the 9 or : button to
select
Cancel
Cancel.
Press the a button.
X
The tyre pressure values stored at the last
restart will continue to be monitored.
Serv.
Serv.
menu.
Tyre pressure
Tyre pressure
message appears in the
message
now OK?
OK?
message
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