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360 Maintenance and care
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 in the bot‐
tom quarter of the temperature display.
If necessary, remove the cover.
#
Slowly turn cap
1
counter-clockwise to
#
relieve overpressure.
Continue turning cap
1
counter-clockwise
#
and remove it.
The coolant level is correct in the following
cases:
If the engine is cold, up to marker bar 2.
R
If the engine is warm, up to 0.6 in (1.5 cm)
R
over marker bar 2.
If necessary, add coolant that has been
#
approved by Mercedes-Benz.
Further information on coolant (
R
Refilling the windshield washer system
& 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.
page 433)
/
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.
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