Mercedes-Benz E-Class 2009 Owner's Manual page 191

Tyres and wheels
188
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. Do
not make any sudden steering movements
when doing so.
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, consult the table of tyre
X
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.
Observe the notes in the section on tyre
X
pressures (
Y
page 186).
G
Risk of accident
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.
A tyre with insufficient pressure results in
vehicle instability when driving, thus increas-
ing the risk of an accident.
Make sure that the key is in position 2 in
X
the ignition lock.
In the multi-function display you will see the
standard display (
Y
Press the = or ; button to select the
X
Service menu.
Press the 9 or : button to select
X
Tyre pressure.
Press the a button.
X
The multi-function display shows the mes-
sage:
Run Flat Indicator active Restart
with OK
If you wish to confirm the restart:
Press the a button.
X
The multi-function display shows the mes-
sage:
Tyre press. now OK?
Press the 9 or : button to select
X
Yes.
Press the a button.
X
You will see the following message in the
multi-function display:
Run Flat Indicator restarted
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 press. now OK? message
X
appears, press 9 or : to select
Cancel.
page 108).