Engine Compartment - Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual

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.
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 also obtain further information on main-
tenance work, for example.
Special service requirements
Arduous operating conditions or increased
loads on the vehicle will require some service
work to be performed more often than for a
vehicle in normal use. Such arduous condi-
tions include regular city driving with frequent
intermediate stops and use in mountainous
terrain or on poor road surfaces.
For example, if the vehicle is used under ardu-
ous operating conditions, have air filters,
engine oil and oil filters changed frequently
and check the wheels often. Further informa-
tion can be obtained at a qualified specialist
workshop, e.g. a Mercedes-Benz Service
Centre.
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 display
i
For BlueTEC vehicles only.
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent AdBlue
up as part of the service. Under normal oper-
ating conditions, a full tank of AdBlue
last until the next service due date.
Depending on how and where the vehicle is
used, there may be an increase in the
® ®
. AdBlue is topped
®
should

Engine compartment

®
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 Own‐ Refill AdBlue at workshop See Own‐
er's Manual er's Manual
Refill AdBlue at workshop No start Refill AdBlue at workshop No start
in .. km in .. km
A warning tone also sounds.
You can no longer start the engine when the
®
AdBlue supply has been used up.
4-button multifunction steering wheel
R
( page 266)
Y
12-button multifunction steering wheel
R
( page 269)
Y
! Have the AdBlue
®
qualified specialist workshop only. The
vehicle may otherwise be damaged or
soiled.
Before taking a trip with your vehicle outside
Europe, have the AdBlue
a qualified specialist workshop. If necessary,
®
have AdBlue topped up. Before a longer stay
outside of Europe, consult a qualified special-
ist workshop.
Observe the notes on AdBlue
You can obtain further information about
BlueTEC exhaust gas aftertreatment and
®
AdBlue from any Mercedes-Benz Service
Centre.
Engine compartment
Bonnet
Opening the bonnet
G WARNING
Do not pull the release lever while the vehicle
is in motion. If you do so, the bonnet may open
up and block your view.
tank topped up at a
®
supply checked at
®
( page 368).
Y
Z
313