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380 Maintenance and care
Park the vehicle on a level surface.
#
Check the coolant temperature display in the
#
instrument cluster.
The coolant temperature must be below
70 °C.
Slowly turn cap
1
anti-clockwise to release
#
overpressure.
Continue turning cap
1
anti-clockwise and
#
remove it.
The coolant level is correct:
if the engine is cold, up to marker bar
R
if the engine is warm, up to 1.5 cm over
R
marker bar
2
If necessary, top up with coolant that has
#
been approved by Mercedes-Benz.
Further information on coolant
R
(
page 435).
/
Topping up the windscreen 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 bonnet
If you open the engine bonnet when the
engine has overheated or during a fire in the
2
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids.
Before opening the bonnet, allow the
#
engine to cool down.
In the event of a fire in the engine com‐
#
partment, keep the engine bonnet
closed and call the fire service.
& WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Windscreen 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 windscreen washer
#
concentrate spills out next to the filler
opening.
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