Mercedes-Benz SLC 2018 Operator's Manual page 238

Engine compartment
236
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
G
WARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
Example
Park the vehicle on a level surface.
X
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
Turn the SmartKey to position 2 in the igni-
X
tion lock ( page 116).
Y
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Check the coolant temperature gage in the
X
multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
Turn the SmartKey to position u
X
( page 116) in the ignition lock.
Y
Slowly turn cap : half a turn anti-clockwise
X
to allow excess pressure to escape.
Turn cap ; further counter-clockwise and
X
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 :.
page 116).
Y
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar = in the fuel filler
neck when warm, there is enough coolant in
expansion tank :.
If necessary, add coolant that has been tested
X
and approved by Mercedes-Benz.
Replace cap ; and turn it clockwise as far as
X
it will go.
Further information on coolant (
Windshield washer system
G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
G
WARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
Example
To open: pull cap : upwards by the tab.
X
Add the premixed washer fluid.
X
To close: press cap : onto the filler neck
X
until it engages.
If the washer fluid level drops below the recom-
mended minimum fluid level of 1 US qt (1 liter),
page 293).
Y