Mercedes-Benz S 450 4MATIC Operator's Manual page 660

Display Possible cause/consequence
Tire Pressures The tire inflation pressure is being
Displayed After Driving checked.
a Few Minutes
Service Required The automatic transmission cannot be
Do Not Shift Gears shifted out of the set position because of a
malfunction.
Possible solution
Drive the vehicle for a few minutes.
If the automatic transmission is shift to drive position D
( page 426):
Without changing the automatic transmission from drive
position D, contact an authorized Mercedes-Benz Center.
If the automatic transmission is shift to neutral position N, re-
verse gear R or park position P:
Do not drive.
Consult an authorized Mercedes-Benz Center.
Practical hints
What to do if ...?
659