User Manual - Page 357

For 2020 C-Class Sedan C 300.

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Checking coolant level
&
WARNING Risk of burns from hot com
ponent parts in the engine compartment
Certain components in the engine compart
ment can be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
#
Allow the engine to cool down and only
touch component parts described in the
following.
&
WARNING Danger of burns when open
ing the hood
If you open the hood when the engine has
overheated or during a fire in the engine
compartment, you could come into contact
with hot gases or other escaping operating
fluids.
#
Before opening the hood, allow the
engine to cool down.
#
In the event of a fire in the engine com
partment, keep the hood closed and
call the fire service.
&
WARNING Risk of scalding from hot
coolant
The engine cooling system is pressurized,
particularly when the engine is warm. If you
open the cap, you could be scalded by hot
coolant spraying out.
#
Let the engine cool down before open
ing the cap.
#
When opening the cap, wear protective
gloves and safety glasses.
#
Open the cap slowly to release pres
sure.
#
Park the vehicle on a level surface.
#
Check the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
158 °F (70 °C).
#
Slowly tur n cap 1 counter-clockwise to
relieve overpressure.
Maintenance and care
357
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