Mercedes-Benz 500 SEC Operator's Manual download pdf (Page 134)

134

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

-35 ° F

(-37 °C)

-49 °F

(-45 °C)

SEC 500 8.2 US qt 9.0 US qt

(7.25 l) (8.50 l)

SEC 600 10.6 US qt 11.6US qt

(10.00 l) (11.00 l)

Coolants

The engine coolant is a mixture of water

and 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. -22 °F (-30 °C) and

corrosion protection.

The coolant solution must be used year

round to provide the necessary corrosion

protection and increase in the boil-over

protection. 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. -22 °F [-30

°C]). If you use a solution that is more

than 55% anticorrosion/antifreeze (freeze

protection to approx. -49 °F [-45°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 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

aluminum parts. The use of aluminum

components in motor vehicle engines

necessitates that anticorrosion/

antifreeze coolant used in such engines

be specifically formulated to protect the

aluminum parts. (Failure to use such

anticorrosion/antifreeze coolant will

result in a significantly shortened

service life.)

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