Mercedes-Benz S 350 Owner's Manual page 425

Press #.
The following message appears in the
multi-function display: "Run Flat Indica-
tor reactivated".
After a teach-in phase, the tyre pres-
sure loss warning will monitor the set
tyre pressures of all four tyres.
Cancelling activation
Press the L button.
or
If the following message appears in the
multi-function display: "Tyre pressure now
OK?"
Press $ or % to select "No".
Press #.
Checking the tyre pressure
electronically*
The tyre pressure monitor only functions if
the correct wheel electronics units are fit-
ted to all wheels. These monitor the pres-
sure in all four tyres which you set when
you activated the tyre pressure monitor.
The tyre pressure monitor warns you if the
pressure drops in one or more of the tyres.
i
You will find a menu overview on
( page 236).
Make sure that the key is in position 2
in the ignition lock.
Press ( or & to select the "Serv-
ice" menu.
Press $ or % to select
"Tyr.press.".
Press #.
i
You cannot read the current tyre pressures
until the vehicle is in motion. The following mes-
sage is displayed instead if the vehicle is station-
ary: "Tyre pressures displayed after driving a few
minutes".
Tyres and wheels
P54.32-3382-31
i
The tyre pressure values indicated in the op-
erating system may differ from those measured
at a filling station with a pressure gauge. The op-
erating system will generally give a more accu-
rate value.
G
Risk of accident
The tyre pressure monitor does not warn
you of an incorrectly set tyre pressure. The
table in the fuel filler flap will help you de-
cide whether the tyre pressures should be
corrected.
The tyre pressure monitor is not able to
warn you of a sudden loss of pressure, e.g.
following penetration by a foreign object. If
this occurs, bring the vehicle to a halt by
braking carefully. Do not make any sudden
steering movements when doing this.
Operation
403