312 Operation
Maintenance
Maintenance service term exceeded
If you have exceeded the suggested 
maintenance service term, you will see the 
following message in the multifunction 
display:
Service A exceeded by XXXX miles(km)
Service A exceeded by XXX Days
In addition, a signal sounds when the 
message appears.
Any authorized Mercedes-Benz Center will 
reset the maintenance service indicator 
following a completed maintenance 
service.Calling up the maintenance service 
indicator display
Switch on the ignition (page 32).
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly 
until the standard display appears in 
the multifunction display (
page 121).
Press buttonk orj until the 
maintenance service indicator display 
with the service symbol9 or½ 
and the service deadline appears in the 
multifunction display.Resetting the maintenance service 
indicator 
In the event that the maintenance service 
on your vehicle is not carried out by an 
authorized Mercedes-Benz Center, you can 
have the maintenance service indicator 
reset. The automotive maintenance facility 
carrying out the maintenance service will 
find the information for resetting the 
maintenance service indicator in the 
maintenance-relevant information for your 
vehicle. Such information is available from 
either your authorized Mercedes-Benz 
Center or directly from Mercedes-Benz.
iIf the battery is disconnected, the days of 
disconnection will not be included in the count 
shown by the maintenance service indicator. To 
arrive at the true maintenance service deadline, 
you will need to subtract these days from the 
days shown in the maintenance service indicator 
message or maintenance service indicator dis-
play.
Do not confuse the maintenance service indica-
tor with the engine oil level indicatorN.
iIf the maintenance service indicator was in-
advertently reset, have an authorized 
Mercedes-Benz Center correct it.
Only reset if the proper maintenance service has 
been performed. Resetting the system without 
performing the proper service as called for by 
the maintenance service indicator will result in 
engine damage and/or other vehicle damage not 
covered by the Mercedes-Benz Limited Warran-
ty.