Mercedes-Benz E 500, Руководство пользователя

Страница: 127 / 140

Coolants
The engine coolant is a mixture of
water and anticorrosion/anti­
freeze, which provides:
• corrosion protection
• freeze protection
• boiling protection (by increas­
ing the boiling point).
The cooling system was filled at
the factory with a coolant provid­
ing freeze protection to approx.
-2 2 ° F (—30 °C) and corrosion
protection.
The coolant solution must be used
year round to provide the ne­
cessary corrosion protection and
increase in the boil-over protec­
tion. You should have it replaced
every 3 years.
To provide the important corrosion
protection, the solution must be at
least 45% anticorrosion/antifreeze
(equals a freeze protection to
approx. - 2 2 °F [-3 0 °C ]). If you use
a solution that is more than 55%
anticorrosion/antifreeze (freeze
protection to approx. - 4 9 ° F
[-4 5 °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 anti­
corrosion/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 require­
ments, 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
aluminum parts. The use of alu­
minum components in motor
vehicle engines necessitates that
anticorrosion/antifreeze coolant
used in such engines be specifi­
cally formulated to protect the
aluminum parts. (Failure to use
such anticorrosion/antifreeze
coolant will result in a significantly
shortened service life.)
Therefore the following product is
strongly recommended for use in
your car: Mercedes-Benz
Anticorrosion/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/antifreeze quantity
Model Approx. freeze
protection
- 3 5 °F - 4 9 “ F
(-37 °C) (-45 °C)
300 E 2.8
300 E
5.0 US qt 5.5 US qt
300 CE (4.75 I) (5.25 I)
300 E
4MATIC
400 E 7.9 US qt 8.7 US qt
500 E (7.5 I) (8.25 I)