Coolants - Mercedes-Benz 560 SL 107 1988 Owner's Manual

Coolants

The engine coolant is a mixture of
water and MB anticorrosion/anti­
freeze, which provides:
• 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 approx. — 30° C
(— 22° F) and corrosion protection.
The red area of the temperature
gauge is matched to the heating
properties of this coolant solution.
The coolant solution must be used
year round to provide the neces­
sary corrosion protection and
increase in the boilover protection.
You should have it replaced every
3 years.
To provide the important corrosion
protection, the solution must be at
least 33 % anticorrosion/antifreeze
(equals a freeze protection to
approx. — 20° C [— 4° F]). If you use
a solution that is more than 55%
anticorrosion/antifreeze (freeze pro­
tection to approx. — 45° C [—49° F]),
the engine temperature will in­
crease due to the lower heat trans­
fer 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 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,
consult your authorized
MERCEDES-BENZ dealer.
Anticorrosion/antifreeze
Your vehicle contains a number of
aluminium parts. The use of alumini­
um components in motor vehicle
engines necessitates that anticorro­
sion/antifreeze coolant used in
such engines be specifically
formulated to protect the aluminium
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 car: MERCEDES-BENZ Anti­
corrosion/Antifreeze Agent.
Before the start of the winter
season (or once a year in the hot
southern regions), you should have
the anticorrosion/antifreeze
concentration checked. The coolant
is also regularly checked each time
you bring your vehicle to your
authorized MERCEDES-BENZ
dealer for maintenance service.
Approx. freeze Anticorrosion/
protection
antifreeze
-3 0 ° C
5.75 I (6.1 US qt)
(-22 ° F)
-4 5 ° C
6.75 I (7.1 US qt)
(-49 ° F)
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