340 OperationMaintenance
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 ser-
vice indicator display.
Do not confuse the maintenance 
service indicator with the engine oil 
level indicatorN.
iIf the maintenance service indicator 
was inadvertently 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 Warranty.