Coolants - Mercedes-Benz 560 SL 1986 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 — 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
>
—20° C [— 4° F]). If you use a solu­
tion that is more than 55% anticor­
rosion/antifreeze (freeze protection
94
to — 45° C [— 49° F]), 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 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 alumin­
ium 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.
Anticorrosion/
Freeze
protection antifreeze
-3 0 ° C I
5.75 I (6.1 US qt)
(-22° F) |
-4 5 ° C
6.75 I (7.1 US qt)
(-49° F );