Mercedes-Benz C-Class, Owner'S Manual

Page: 397 / 489

Allow the engine to cool before opening the
cap. Wear gloves and protective eyewear
when opening. Slowly turn the cap half a turn
to allow pressure to escape.
X
Park the vehicle on a level surface.
Only check the coolant level if the vehicle is
on a level surface and the engine has
cooled down.
X
Turn the key to position 2 in the ignition
lock (
Y
page 181).
or
X
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y
page 181).
X
Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
70 †.
X
Turn the key to position 0 (
Y
page 181) in
the ignition lock.
or
X
On vehicles with KEYLESS-GO, pull the
Start/Stop button from the ignition lock
(
Y
page 181).
X
Slowly turn cap : half a turn anti-clock-
wise to allow excess pressure to escape.
X
Turn cap : further anti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ; .
If the coolant level is approximately 1.5 cm
above marker bar = in the filler neck when
warm, there is enough coolant in coolant
expansion tank ; .
X
If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
X
Replace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
(
Y
page 475).
Topping up the windscreen washer sys-
tem
G WARNING
Certain components in the engine compart-
ment could be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is a risk of injury when accessing the
engine compartment.
As far as possible, allow the engine to cool
down and only touch the components descri-
bed in the following.
G WARNING
If windscreen washer concentrate comes into
contact with hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure the windscreen washer concen-
trate does not come into contact with the filler
neck.
394
Engine compartment
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