and that it is not swallowed. Do not inhale fuelvapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
HEnvironmental note
If fuels are handled improperly, they pose a
danger to persons and the environment. Do
not allow fuels to run into the sewage system,
the surface waters, the ground water or into
the ground.
!Do not use gasoline to refuel vehicles with a
diesel engine. Even small amounts of gasoline
will cause damage to the fuel system and
engine.
!Do not switch on the ignition if you acciden-
tally refuel with the wrong fuel. Otherwise, the
fuel will enter the fuel lines. Notify a qualified
specialist workshop and have the fuel tank
and fuel lines drained completely.
!Overfilling the fuel tank could damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Filter the fuel before transferring it to the
vehicle if you are refueling the vehicle from
barrels or containers.
This will prevent malfunctions in the fuel sys-
tem due to contaminated fuel.
Further information on fuel and on fuel grades
can be found in the "Technical data" section
(
Ypage 277).
Refueling procedure
The fuel filler flap is beside the front left-hand
door when viewed in the direction of travel. It is
only possible to open the fuel filler flap when the front door is open.
XRemove the key from the ignition lock.
XSwitch off the auxiliary heating system
(Ypage 106).
XOpen the front left-hand door first, and then
the fuel filler flap.
XClose all vehicle doors to prevent fuel vaporsfrom entering the vehicle interior.
XTurn fuel filler cap ;counter-clockwise,
remove it and let it hang from strap :.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank and refuel.
XOnly fill the tank until the pump nozzle
switches off. Fuel may otherwise leak out.
XReplace tank filler cap;on tank and turn
clockwise.
You will hear a click when the fuel filler cap is
closed fully.
XOpen the front left-hand door first, and then
close the filler flap.
128Refueling
Driving and parking
If the: indicator lamp in the instrument
cluster goes on, drain fuel filter with water sep-
arator =immediately.
iWe recommend that you have this mainte-
nance work carried out at a qualified special- ist workshop.
XPark the vehicle safely and secure it from roll-
ing away.
XSwitch off the auxiliary heating system .
XSwitch off the engine.
XOpen the hood (Ypage 218).
XPlace a suitable receptacle under drain
hose :.
XTurn the key to position 2in the ignition lock.
XOpen drain plug ;immediately until the
water/fuel mixture flows out of drain hose :.
XScrew in drain plug;as soon as approx-
imately 0.2 qt (0.2 l)of the water/fuel mixture
has been collected.
The electrical fuel pump automatically halts
the flow of the water/fuel mixture after
30 seconds.
XAfter draining, turn the key back to position 0
in the ignition lock.
XDispose of the collected water/fuel mixture
in an environmentally responsible manner,
e.g. at a qualified specialist workshop.
XCheck drain plug ;. The drain plug must be
closed.
When the engine is running and drain hose ;
is open, fuel is lost through drain hose :.
XClose the hood (Ypage 219).
If the : indicator lamp does not go out after
draining:
XDrain the fuel filter again.
XIf the : indicator lamp does not go out
after draining for the second time, have the
cause checked immediately at a qualified spe-
cialist workshop.
Vehicle interior
Air filter for the rear-compartment air
conditioning
!
Regularly check the air filters for visible dirt.
Clean or replace a dirty filter mat. The dirt may
otherwise lead to damage to the air-condi-
tioning system.
Filter magazine, located on the roof in the rear
compartment
An increased amount of sand or dust may collect in the air filter of the rear-compartment air con-
ditioning when you drive on dusty or sandy
roads.
XTo remove the filter mat: carefully pry
cover :out of recesses ;and remove.
XRemove the filter mat from the air duct.
XTo clean the filter mat: wash the dirty filter
mat with clear water.
XLeave the filter mat to dry.
iThe filter mat must not be cleaned or dried in
a machine.
XTo install the filter mat: insert the filter mat
into the air duct.
XReplace and engage cover :.
Maintenance
General notes
HEnvironmental note
Observe measures to protect the environ-
ment when working on the vehicle. You must
observe the legal requirements when dispos-
ing of service products, e.g. engine oil. This
also includes all components, e.g. filters,
which have come into contact with service
products. Any qualified specialist workshop
can provide information about this.
Dispose of empty containers, cleaning cloths
and care products in an environmentally
responsible manner. Comply with the instruc-
tions for use of the care products.
Maintenance225
Maintenance and care
Z
(8 km/h). The multifunction display shows the
Idle Modemessage.
DEF consumption
DEF consumption depends on operational and
driving conditions and it is not necessary to wait
until the next scheduled service to replenish the
fluid. Fluid should be added regularly to the DEF supply reservoir during vehicle operation or, at
the latest, after receiving the first warning mes-
sage via the on-board computer.
Low ambient temperatures
DEF freezes at a temperature of approximately
12 ‡(Ò11 †). The vehicle is equipped with a DEF
preheating system at the factory. Winter oper-
ation is therefore also guaranteed at tempera-
tures under 12 ‡ (Ò11 †).
iIf you add DEF at temperatures below 12 ‡
(Ò11 †) it is possible that the level is not
shown correctly due to the frozen DEF.
Drive for at least 20 minutes (heating phase in
the tank activated) and then stop the vehicle
for at least 30 seconds. The level is then
shown correctly.
Additives
!Do not mix DEF with any additives and do
not dilute DEF with tap water. Otherwise, the
exhaust gas aftertreatment may be damaged.
Observe the MB Specifications for Service
Products, Sheet No. 352.0.
Damage that arises through the use of addi-
tives or tap water will invalidate the New Vehi-
cle Limited Warranty.
Storage
!Containers made of aluminum, copper, cop-
per alloys as well as unalloyed or galvanized
steel are not suitable for storing DEF. If stored
in these types of containers, DEF could cause
constituents of these metals to dissolve and
cause irreparable damage to the exhaust gas
aftertreatment.
Damage caused by such impurities in the DEF
will invalidate the New Vehicle Limited War-
ranty.
Only store DEF in containers made of hi
gh-alloy
Cr‑Ni steel or Mo‑Cr‑Ni steel in accordance with
DIN EN 10 088 ‑1/2/3 or plastic containers
made of polypropylene or polyethylene.
Purity
!Impurities in DEF (e.g. caused by other ser-
vice products, cleaning agents, dust, etc.)
result in increased emissions, malfunctions,
catalytic converter damage or engine dam-
age.
The purity of DEF is essential to prevent mal-
functions in the exhaust gas aftertreatment.
If DEF is pumped out of the DEF tank, e.g. during
repair work, the same liquid must not be used to
refill the tank. Its purity is no longer guaranteed.
Disposal
Observe country-specific laws and regulations
when disposing of DEF.
% Environmental note
Dispose of DEF in an environmentally responsi-
ble manner.
DEF supply reservoir content
Tank contents
Diesel Exhaust Fluid (DEF)11
Approximately 4.7 US gal (18.0 l)
Engine oil
General notes
!The bottles of the various engine oil types
are marked with ACEA (Association des Con-
structeurs Européens d'Automobiles) and/or
API (American Petroleum Institute) classifica-
tions. Only use approved engine oils that con-
form to the following MB Specifications for
Service Products and the prescribed ACEA
and/or API classifications. Using engine oils
11DEF according to ISO 22241. Observe MB Specifications for Service Products, Sheet 352.0.
280Service products and capacities
Technical data