Mercedes-Benz 2008 S550 Operator's Manual page 567

Operation
Tires and wheels
Reactivating the Run Flat Indicator
The tire inflation pressure monitor must be
reactivated in the following situations:
If you have changed the tire inflation
pressure
If you have replaced the wheels or tires
If you have installed new wheels or
tires
Using the tire placard on the driver's
door B-pillar ( page 553) or, if avail-
able, the inside of the fuel filler flap
( page 538), make sure the tire infla-
tion pressure of all four tires is correct.
Warning!
The Run Flat Indicator can only warn you in
a reliable manner if you have set the correct
tire inflation pressures for each tire.
If an incorrect tire inflation pressure was
set, the system will monitor the pressure ac-
cording to the incorrect value.
566
i
The menu overview can be found on
( page 266).
Switch on the ignition ( page 344).
Press ( or & to select the menu
"Service".
Press $ or % to select "Tire
pressure".
Press #.
The message
"Run Flat Indicator
active
Restart possible with OK"
appears in the multifunction display.
G
Press #.
The message
"Tire pressure
now OK?"
appears in the multifunction display.
If you wish to confirm activation:
Press $ or % to select "Yes".
Press #.
The message
"Run Flat Indicator
restarted"
appears in the multifunction display.
After a certain "learning phase", the Run
Flat Indicator checks the set pressure val-
ues for all four tires.
If you wish to cancel activation:
Press L.
or
When the message
"Tire pressure
now OK?"
appears in the multifunction display:
Press $ or % to select "Cancel".
Press #.