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357
sion/antifreeze (equivalent to freeze protec-
tion to approximately -35‡ [-37†]).
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protection
to approximately -49‡ [-45†]), the engine
temperature will increase due to the lower
heat transfer capability of the solution. There-
fore, 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). 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,
contact an authorized Mercedes-Benz Cen-
ter.
Anticorrosion/antifreeze
Your vehicle contains a number of aluminum
parts. The use of aluminum components in
motor vehicle engines necessitates that anti-
corrosion/antifreeze coolant used in such
engines be specifically formulated to protect
the aluminum parts. Failure to use such anti-
corrosion/antifreeze coolant will result in a
significantly shortened service life.
Therefore, the following product is strongly
recommended for use in your vehicle:
MB 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 concentra-
tion checked.
The coolant is also regularly checked each
time you bring your vehicle to an authorized
Mercedes-Benz Center for service.
Model Approximate freeze protection
-35‡ (-37†) -49‡ (-45†)
Cooling system SLK 300
SLK 350
5.2 US qt (4.9 l) 5.7 US qt (5.4 l)
SLK 55 AMG 5.9 US qt (5.55 l) 6.5 US qt (6.1 l)
Technical data
Z