Mercedes-Benz 2016 GLC, Operator'S Manual

Page: 343 / 418

X
Replace cap : on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X
Check the oil level again with the oil dip-
stick (
Y
page 339).
Further information on engine oil
(
Y
page 411).
Additional service products
Checking coolant level
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
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.
X
Park the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down.
X
Turn the SmartKey to position 2 in the igni-
tion lock (
Y
page 153).
or
X
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y
page 153).
X
Check the coolant temperature display in
the instrument cluster (
Y
page 239).
The coolant temperature must be below
158 ‡ (70 †).
X
Turn the SmartKey to position 0 in the igni-
tion lock (
Y
page 153).
or
X
On vehicles with KEYLESS-GO, pull the
Start/Stop button from the ignition lock
(
Y
page 153).
X
Slowly turn cap : half a turn counter-
clockwise to allow excess pressure to
escape.
X
Turn cap : further counter-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 0.6 in
(1.5 cm) above marker bar = in the filler
neck when warm, there is enough coolant
in expansion tank ; .
X
If necessary, add coolant that has been tes-
ted 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 412).
Adding washer fluid to the 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.
Engine compartment
341
Maintenance
and
care
Z