X
Turn cap : counter-clockwise and remove it.
X
Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l) of engine
oil.
X
Replace cap : on the filler neck and tighten
clockwise.
Ensure that the cap locks into place securely.
X
Check the oil level again with the oil dipstick
(
Y page 357).
Further information on engine oil (Y page 437).
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 vehicle
is on a level surface and the engine has cooled
down.
X
Turn the SmartKey to position 2 in the ignition
lock (
Y page 145).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y page 148).
X
Check the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
X
Turn the SmartKey to position 0 in the ignition
lock (
Y page 145).
X
Slowly turn cap : half a turn counter-clock-
wise and 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 expan-
sion tank ;.
X
If necessary, add 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 438).
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.
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.
Engine compartment
359
Maintenance and care
Z
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