Maintenance - Mercedes-Benz M-Class Owner's Manual

Maintaining the time-dependent service
schedule:
Note down the service due date displayed
X
in the multifunction display before discon-
necting the battery.
or
Subtract the battery disconnection periods
X
from the service date shown on the display
after reconnecting the battery.
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 320).
Y
Hiding a service message
Press the % or a button on the steer-
X
ing wheel.
Displaying service messages
Switch the ignition on.
X
Press = or ; on the steering wheel
X
to select the Serv.
Press 9 or : to select the
X
PLUS submenu and press a to confirm.
The service due date appears in the multi-
function display.
Points to remember
Resetting the ASSYST PLUS service inter-
val display
A qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre, will reset the
ASSYST PLUS service interval display after
the service work has been carried out.
You can obtain further information, e.g.
regarding service work, from a Mercedes-
Benz Service Centre or directly from
Mercedes-Benz.
! If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a Mercedes-Benz
Service Centre.
menu.
ASSYST
Have service work carried out as described
in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Mercedes-Benz Service24h" section
of the Service Booklet.
®
AdBlue service indicator
i
For BlueTEC vehicles only.
The BlueTEC exhaust gas aftertreatment
must be operated with the reducing agent
®
AdBlue in order for it to function correctly.
Under normal operating conditions, a full tank
®
of AdBlue should last until the next service
due date.
Depending on how and where the vehicle is
used, there may be an increase in the
®
AdBlue consumption, resulting in the next
service due date being brought forward.
Certain display messages show that
®
AdBlue must be topped up, e.g.
Refill AdBlue at workshop See
Owner's Manual
Refill AdBlue at workshop No start
in .. km
A warning signal also sounds.
You can no longer start the engine when the
®
AdBlue supply has been used up
( page 268).
Y
®
Top up AdBlue ( page 157).
Y
Before taking a trip with your vehicle outside
Europe, have the AdBlue
a qualified specialist workshop. If necessary,
®
have the AdBlue topped up. Before using
your vehicle for an extended period in coun-
tries outside Europe, contact a qualified spe-
cialist workshop.
Observe the notes on AdBlue

Maintenance

®
supply checked at
®
( page 374).
Y
Z
323