Mercedes-Benz C-Class Convertible 2021 Operator's Manual page 396

394 Technical data
tected against overheating and corrosion at
high outside temperatures.
Always use coolant approved by
#
Mercedes-Benz.
Observe the instructions in the
#
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Have the coolant regularly replaced at a qualified
specialist workshop.
Proportion of antifreeze concentrate in the
engine cooling system:
A minimum of 50% (antifreeze protection
R
down to approximately -35°F (-37°C))
A maximum of 55% (antifreeze protection
R
down to -49°F (-45°C))
Coolant capacity
Model Capacity
All models 9.5 US qt (9.0 liters)
Notes on windshield washer fluid
Observe the notes on operating fluids
( page 389).
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& WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Windshield washer concentrate is highly
flammable. It could ignite if it comes into
contact with hot engine component parts or
the exhaust system.
Make sure that no windshield washer
#
concentrate spills out next to the filler
opening.
* NOTE Damage to the exterior lighting
due to unsuitable windshield washer fluid
Unsuitable windshield washer fluid may dam‐
age the plastic surface of the exterior light‐
ing.
Only use windshield washer fluid which
#
is also suitable for use on plastic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit.
* NOTE Blocked spray nozzles caused by
mixing windshield washer fluids
Do not mix MB SummerFit and MB Win‐
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terFit with other windshield washer flu‐
ids.
Do not use distilled or de-ionized water. Other‐
wise, the fill level sensor may be triggered erro‐
neously.
Recommended windshield washer fluid:
Above freezing point: e.g. MB SummerFit
R
Below freezing point: e.g. MB WinterFit
R
For the correct mixing ratio, refer to the informa‐
tion on the antifreeze container.
Mix washer fluid with windshield washer fluid all
year round.
Refrigerant
Notes on refrigerant
Observe the notes on operating fluids
( page 389).
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