249 Operation
Maintenance
Maintenance
We strongly recommend that you have 
your vehicle serviced by your authorized 
Mercedes-Benz Center, in accordance with 
the Service Booklet at the times called for 
by the FSS (F
lexible S
ervice S
ystem).
Failure to have the vehicle maintained in 
accordance with the Service Booklet at the 
designated times /mileage called for by 
the FSS may result in vehicle damage not 
covered by the Mercedes-Benz Limited 
Warranty.
FSS will notify you when your next service 
is due. 
Approximately one month before your next 
service is due, one of the following mes-
sages will appear in the multifunction dis-
play while you are driving or when you 
switch on the ignition (example service A):
SERVICE A - IN xx DAYS
SERVICE A - IN xx MILES (KM)
SERVICE A - DUE NOW
The type of service due is indicated in the 
multifunction display field:
9Minor service (A)
´Major service (B)
Clearing the service indicator
The service indicator is automatically 
cleared
after ten seconds when you switch on 
the ignition or when reaching the 
service threshold while driving.
after 30 seconds, once the suggested 
service term had passed.
You can also clear it yourself:
Press the reset button on the instru-
ment cluster (
page 22).
Service term exceeded
If you have exceeded the suggested 
service term, you will see the following 
message in the multifunction display:SERVICE A EXCEEDED BY XX DAYS 
SERVICE A EXCEEDED BY XX MI (KM)An acoustic signal will also sound.
iThe interval between services depends 
on your driving habits. A gentle driving 
style, moderate engine speeds and the 
avoidance of short-distance trips will 
lengthen the interval between services. 
250 OperationMaintenanceThe Mercedes-Benz Center will reset the 
service indicator following a completed 
service.Calling up the service indicator
Switch ignition on.
The standard display of the control sys-
tem appears (
page 109).
Press button k or j on the mul-
tifunction steering wheel until the FSS 
indicator appears in the multifunction 
display.
Resetting the service indicator
In the event that the service on your vehi-
cle is not carried out by an authorized 
Mercedes-Benz Center, you can reset the 
service indicator yourself.
Switch on ignition.
The standard display of the control sys-
tem appears (
page 109).
Press button k or j on the mul-
tifunction steering wheel until the FSS 
indicator appears in the multifunction 
display.
Press the reset button for about 
four seconds.
This message appears in the multifunc-
tion display:SERVICE INTERVAL? RESET WITH R 
BUTTON FOR 3 SEC.
To confirm, hold down the reset button 
for about four seconds.
The service indicator now displays the 
reset interval.
iIf the battery is disconnected, the days 
of disconnection will not be included in 
the count shown by the service indica-
tor. To arrive at the true service dead-
line, you will need to subtract these 
days from the days shown in the ser-
vice indicator.
Do not confuse the service indicator 
with the engine oil level indicator :.
iIf the service indicator was inadvertent-
ly reset, have a Mercedes-Benz Center 
correct it.
Only reset if the proper service has 
been performed. Resetting the system 
without performing the proper service 
as called for by the FSS will cause the 
FSS to incorrectly determine the next 
service interval which will result in en-
gine damage not covered by the 
Mercedes-Benz Limited Warranty.