Page 13 of 473

12 Introduction
Operator’s Manual
Maintenance
The Maintenance Booklet describes all the 
necessary maintenance work which should 
be performed at regular intervals.
Always have the Maintenance Booklet with 
you when you take the vehicle to your 
authorized Mercedes-Benz Center for 
service. The service advisor will record 
each service in the booklet for you.Roadside Assistance
The Mercedes-Benz Roadside Assistance 
Program provides factory-trained technical 
help in the event of a breakdown. Calls to 
the toll-free Roadside Assistance number
1-800-FOR-MERCedes (in the USA)
1-800-387-0100 (in Canada)
will be answered by Mercedes-Benz 
Customer Assistance Representatives 
24 hours a day, 365 days a year.
For additional information refer to the 
Mercedes-Benz Roadside Assistance 
Program Brochure in your vehicle literature 
portfolio.Change of address or ownership
If you change your address, be sure to 
send in the “Change of Address Notice” 
found in the Service and Warranty 
Information Booklet, or simply call the 
Mercedes-Benz Customer Assistance 
Center (in the USA) at 
1-800-FOR-MERCedes, or Customer 
Service (in Canada) at 1-800-387-0100. 
It is in your own interest that we can 
contact you should the need arise.
If you sell your Mercedes, please leave all 
literature with the vehicle to make it avail-
able to the next operator.
If you bought this vehicle used, be sure to 
send in the “Notice of Purchase of Used 
Car” found in the Service and Warranty 
Information Booklet, or call the 
Mercedes-Benz Customer Assistance 
Center (in the USA) at 
1-800-FOR-MERCedes, or Customer 
Service (in Canada) at 1-800-387-0100. 
     
        
        Page 335 of 473

334 Operation
Maintenance
We strongly recommend that you have 
your vehicle serviced by an authorized 
Mercedes-Benz Center, in accordance with 
the Maintenance Booklet at the times 
called for by the maintenance service indi-
cator.Maintenance service indicator 
message
The maintenance service indicator 
message will notify you when the next 
maintenance service is due.
Starting approximately 1 month before the 
next maintenance service is due, one of 
the following messages will appear in the 
multifunction display while you are driving 
or when you switch on the ignition (exam-
ple service A):
Service A due in XXXXX miles (km)
Service A due in XXX days
Service A due in X day
Service A due now
The maintenance services will be indicated 
by showing a service type A through 
type H in the multifunction display. 
Types A through H are classified based on 
estimated time needed to perform the 
maintenance service, ranging:
from
Service A
(approximately 1 hour)
to
Service H
(approximately 8 hours)
Refer to Maintenance Booklet for a listing 
of maintenance services and intervals the 
need to be performed at.
!Failure to have the vehicle maintained in 
accordance with the Maintenance Booklet and 
the maintenance service indicator at the 
designated times/mileage will result in vehicle 
damage not covered by the Mercedes-Benz 
Limited Warranty.
iThe Maintenance System tracks distance 
driven and the time elapsed since the last main-
tenance service, calculates other maintenance 
service work required, and calls for the next 
maintenance service accordingly. 
     
        
        Page 446 of 473

445 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for 
their suitability in our engines and durabil-
ity for our service intervals. Therefore, only 
use approved engine oils and oil filters 
required for vehicles with 
Maintenance System. For a listing of ap-
proved engine oils and oil filters, refer to 
the Factory Approved Service Products 
pamphlet (USA only), or contact an 
authorized Mercedes-Benz Center.Engine oil additivesAir conditioning refrigerant
R-134a (HFC) refrigerant and special 
PAG lubricating oil are used in the air con-
ditioning system.
!Using engine oils and oil filters of specifica-
tion other than those expressly required for the 
Maintenance System, or changing of oil and oil 
filter at change intervals longer than those called 
for by the Maintenance System will result in 
engine or emission control system damage 
not covered by the Mercedes-Benz Limited 
Warranty.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do 
so will result in engine or emission control sys-
tem damage not covered by the Mercedes-Benz 
Limited Warranty.
!Do not blend oil additives with engine oil. 
They may damage the engine. Damage or mal-
functions resulting from blending oil additives 
are not covered by the Mercedes-Benz Limited 
Warranty.
!Never use R-12 (CFC) or mineral-based 
lubricating oil, otherwise damage to the system 
will occur. 
     
        
        Page 449 of 473

448 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water 
and anticorrosion/antifreeze, which pro-
vides:
Corrosion protection
Freeze protection
Boiling protection (by increasing the 
boiling point)
The cooling system was filled at the factory 
with a coolant providing freeze protection 
to approximately -35°F (-37°C) and corro-
sion protection.
If the antifreeze mixture is effective to 
-35°F (-37°C), the boiling point of the cool-
ant in the pressurized cooling system is 
reached at approximately 266°F (130°C).The coolant solution must be used year 
round to provide the necessary corrosion 
protection and increase boil-over protec-
tion. Refer to Maintenance Booklet for 
replacement interval.
Coolant system design and coolant used 
determine the replacement interval. The 
replacement interval published in the 
Maintenance Booklet is only applicable if 
MB 325.0 Anticorrosion/Antifreeze solu-
tion or other Mercedes-Benz approved 
products of equal specification are used to 
renew the coolant concentration or bring it 
back up to the proper level. 
For information on other Mercedes-Benz 
approved products of equal specification, 
refer to the Factory Approved Service 
Products pamphlet (USA only) or contact 
an authorized Mercedes-Benz Center.To provide important corrosion protection, 
the solution must be at least 
50% anticorrosion/antifreeze (equivalent 
to freeze protection to approximately 
-35°F [-37°C]). If you use a solution that is 
more than 55% anticorrosion/antifreeze 
(freeze protection to approximately 
-49°F [-45°C]), the engine temperature 
will increase due to the lower heat transfer 
capability of the solution. Therefore, do not 
use more than this amount of anticorro-
sion/antifreeze.
If the coolant level is low, water and 
MB 325.0 Anticorrosion/Antifreeze 
should be used to bring it up to the proper 
level (have cooling system checked for 
signs of leakage). Please make sure the 
mixture is in accordance with label 
instructions.
The water in the cooling system must meet 
minimum requirements, which are usually 
satisfied by normal drinking water. If you 
are not sure about the water quality, con-
tact an authorized Mercedes-Benz Center.
!Add premixed coolant solution only. Adding 
water and MB 325.0 Anticorrosion/Antifreeze 
separately from each other, could cause engine 
damage not covered by the Mercedes-Benz 
Limited Warranty.