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The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It is responsible for
the following:
R
anti-corrosion protection
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antifreeze protection
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raising the boiling point
If the coolant has antifreeze protection down
to -35 ‡ (-37 †), the boiling point of the cool-
ant during operation is approximately 266 ‡
(130 †).
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
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be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
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not exceed 55% (antifreeze protection down
to -49 ‡ [-45 †]). Otherwise, heat will not
be dissipated as effectively.
If the vehicle has lost coolant, add equal
amounts of water and antifreeze/corrosion
inhibitor.
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor concentrate in accordance
with MB Specifications for Service Products
310.1.
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When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures ade-
quate antifreeze and anti-corrosion protec-
tion.
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The coolant is checked with every mainte-
nance interval at a qualified specialist work-
shop.
Filling capacities
Missing values were not available at time of
going to print.
Model Capacity
SLC 300
Approx. 8.5 US qt
(8.0 l)
Mercedes‑Benz
SLC 43 AMG
Approx. 8.2 US qt
(7.8 l)
Windshield washer system
Important safety notes
G
WARNING
Windshield washer concentrate is highly
flammable. If windshield washer concentrate
gets onto hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
!
Only use washer fluid which is suitable for
lamp lenses, e.g. MB SummerFit or MB Win-
terFit. Unsuitable washer fluid may damage
the lamp lenses of the headlamps.
!
Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Do not use distilled or de-ionized water. Other-
wise, the level sensor may give a false reading.
When handling washer fluid, observe the
important safety notes on service products
(Y page 298).
At temperatures above freezing:
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Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
X
Add 1 part MB SummerFit to 100 parts
water.
At temperatures below freezing:
X
Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the
information on the antifreeze reservoir.
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Add windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid
all year round.
302
Service products and filling capacities
Technical data
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