Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 372

This depends in particular upon the age of the
®
AdBlue .
Ammonia vapours have a pungent odour and
are particularly irritating to:
skin
R
mucous membranes
R
eyes
R
You may experience a burning sensation in
your eyes, nose and throat, as well as cough-
ing and watering of the eyes.
Do not inhale any ammonia vapours that may
be released. Fill the AdBlue
ventilated areas.
Low outside temperatures
®
AdBlue freezes at a temperature of approx-
imately -11 †. The vehicle is equipped with
®
an AdBlue preheating system at the factory.
Winter operation can therefore be guaran-
teed even at temperatures below -11 †.
Additives
! Only use AdBlue
®
22241. Do not use additives with AdBlue
and do not dilute AdBlue
may destroy the BlueTEC exhaust gas after-
treatment system.
Purity
! Impurities in AdBlue
service products, cleaning agents or dust)
lead to:
increased emission values
R
damage to the catalytic converter
R
engine damage
R
R malfunctions in the BlueTEC
gas aftertreatment system
Assuring the purity of AdBlue
important with respect to avoiding malfunc-
tions in the BlueTEC exhaust gas aftertreat-
ment system.
®
tank only in well-
in accordance with ISO
®
with water. This
®
(e.g. due to other
®
exhaust
®
is particularly
Service products and capacities
®
If AdBlue is pumped out of the AdBlue
e.g. during repair work, do not use this fluid
to refill the tank. The purity of the fluid can no
longer be guaranteed.
Capacities
Model
GLK 220 BlueTEC
4MATIC
GLK 250 BlueTEC
4MATIC
Engine oil
General notes
The quality of the engine oil is decisive for the
function and service life of an engine. After
extensive tests, Mercedes-Benz approves
engine oils that correspond to the current
technical standard.
Therefore, only Mercedes-Benz approved
engine oils may be used in Mercedes-Benz
engines.
®
Further information on tested and approved
engine oils can be obtained from any
Mercedes-Benz Service Centre. Mercedes-
Benz recommends that you have the oil
change carried out at a qualified specialist
workshop. Mercedes-Benz approval is indica-
ted on the oil container by the inscription "MB
Approval" and the corresponding designa-
tion, e.g. MB Approval 229.51.
You can call up an overview of approved
engine oils on the Internet at:
http://bevo.mercedes-benz.com by enter-
ing the designation, e.g. 229.5.
The table shows which engine oils have been
approved for your vehicle.
369
®
tank,
Total capacity
27.5 l
Z