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Only check the coolant level if the vehicle is
on a level surface and the engine has cooled
down.
Turn the key to position 2 in the ignition lock
X
(
page 158).
Y
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Check the coolant temperature gauge in the
X
multifunction display.
The coolant temperature must be below
70 †.
Turn the key to position 0 in the ignition lock
X
(
page 158).
Y
Slowly turn cap : half a turn anti-clockwise
X
and allow excess pressure to escape.
Turn cap : further anti-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 ;.
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
X
been tested and approved by Mercedes-Benz.
Replace cap : and turn it clockwise as far as
X
it will go.
Further information on coolant (
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.
page 160).
Y
page 441).
Y
Make sure the windscreen washer concen-
trate does not come into contact with the filler
neck.
Example: washer fluid reservoir
To open: pull cap : upwards by the tab.
X
Top up with 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 of 1 litre, a message appears
in the multifunction display prompting you to
top up the washer fluid (
Further information on windscreen washer fluid
(
page 442).
Y
ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date.
Information on the type of service and service
intervals (see the separate Service Booklet).
You can obtain further information from a
Mercedes-Benz Service Centre.
i
The ASSYST PLUS service interval display
does not show any information on the engine
oil level. Observe the notes on the engine oil
level (
page 375).
Y
The multifunction display shows a service mes-
sage for a few seconds, e.g.:
Service A in .. days
Service A in .. days
R
Service A due
Service A due
R
Service A overdue by .. days
Service A overdue by .. days
R
ASSYST PLUS
page 336).
Y
Z
377
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