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 Risk of scalding from hot
coolant
If you open the cap, you could be scalded.
#
Let the motor cool down before opening
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 in the bot‐
tom quarter of the temperature display.
#
Slowly turn cap 1 counter-clockwise to
release overpressure.
#
Continue turning cap 1 counter-clockwise
and remove it.
The coolant level is correct in the following
cases:
R
If the engine is cold, the coolant is up to
marker bar 2.
R
If the engine is warm, the coolant is up to
0.6 in (1.5 cm) over marker bar 2.
#
If necessary, add coolant that has been
approved for Mercedes-Benz.
R
Further information on coolant
(/ page 344).
Adding washer fluid to 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.
Maintenance and care
275
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