2008 MERCEDES-BENZ S-Class Cooling

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Page 773 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 772 Technical dataFuels, coolants, lubricants, etc.The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. Refer to Maintenanc

772 Technical dataFuels, coolants, lubricants, etc.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 re-
placement 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% anticor-
rosion/antifreeze (equivalent to freeze
protection to approximately –35°F
[–37°C]).If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approximately –49°F [–45°C]), the
engine temperature will increase due to
the lower heat transfer capability of the so-
lution. Therefore, do not use more than
this amount of anticorrosion/ 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).
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-
sult an authorized Mercedes-Benz Center.Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum
parts. Failure to use such anticorrosion/
antifreeze coolant will result in a signifi-
cantly shortened service life.
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/
Antifreeze agent.
Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to an authorized Mercedes-Benz
Center for service.

Page 774 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 773 Technical data
Fuels, coolants, lubricants, etc.
Anticorrosion/antifreeze quantityModel
Approximate freeze protection
– 35°F (– 37°C)
– 49°F (– 45°C)
S 450 4MATIC
1
S 550
S 550 4MATIC

Page 777 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 776 IndexAspect ratio 606
Audio (COMAND) 116
CD mode 124
DVD mode 124
MP3 mode 124
Audio (Control system
instrument cluster) 294
CD changer 295
CD/DVD changer 295
DVD changer 295
Audio AUX (COMAND) 1

Page 788 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 787 Index
M
Maintenance 15, 612
Automatic Call (Tele Aid) 550
Calling up service indicator
display 613
Clearing service indicator
message 612
Maintenance System 612
Resetting service indicator 614
S

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