Mercedes-Benz M-Class Owner's Manual page 324

Example: engine oil cap
Turn cap : anti-clockwise and remove it.
X
Top up the engine oil.
X
If the oil level is at or below the MIN mark
on the dipstick, top up with
0.5 to 1.0 litres of engine oil.
Replace cap : on the filler neck and turn
X
clockwise.
Make sure that the cap locks into place
securely.
Check the oil level again with the oil dip-
X
stick ( page 320).
Y
Further information on engine oil
( page 375).
Y
Checking and adding other service
products
Checking the coolant level
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
Turn the key to position 2 (
X
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Check the coolant temperature gauge in
X
the multifunction display.
G
WARNING
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
X
X
X
X
For further information on coolant, see
(
Y
page 139) in
Windscreen washer system and head-
Y
lamp cleaning system
The washer fluid reservoir is used for both the
page 139).
Y
windscreen washer system and the headlamp
cleaning system.
i
Engine compartment
must display less than 70 † . Otherwise, you
could be scalded if hot coolant escapes.
Slowly turn cap : half a turn anti-clock-
wise and allow excess pressure to escape.
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 ;.
If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
Replace cap : and turn it clockwise as far
as it will go.
page 377).
Components and service products must
be matched. Mercedes-Benz recommends
that you use products tested and approved
by Mercedes-Benz. They are listed in this
Mercedes-Benz Owner's Manual in the
appropriate section.
321
Z