Problems with
the electronic le vel control Problem
Possible causes/consequences and 0050 0050Solutions
Yo u cannot raise or lo wer
th eve hicle le vel when
st ationar y. The compressor is in danger of
overheating. Af terre peatedly raising and
lo we ring theve hicle, electronic le vel control (play pr otection) is deactiva‐
te d. #
Tryto set theve hicle le vel manually again af ter appro ximately
one minute.
Electri c level control has been deactivated due tounde rvoltage. The bat‐
te ry may not be charging.
Handling and ride comfort may suf fer. #
Start the engine. #
Consult a qualified specialist workshop as soon as possible. Re
fueling Re
fueling theve hicle &
WARNING Risk offire or explosion from
fuel
Fu els are highly flammable. #
Fire, open flames, smoking and creation
of spar ksmust be avoided. #
Swit choff the ignition and, if available,
th est ationary heater, before and while
re fueling theve hicle. &
WARNING Risk of inju ryfrom fuels
Fu els are poisonous and hazardous to your
health. #
Do not swallow fuel or let it come into
con tact wi thskin, eyes or clo thing. #
Do not inhale fuel vapor. #
Keep children away from fuel. #
Keep doors and windo wsclosed du ring
th ere fueling process.
If yo u or other people come into contact with
fuel, obser vethefo llowing: #
Immediately rinse fuel off your skin with
soap and water. #
If fuel comes into contact with your
ey es, immediately rinse them thor‐
oughly with clean water.Seek medical
attention immediately. #
Ifyo u swallow fuel, seek medical atten‐
tion immediatel y.Do not induce vomit‐
ing. #
Change immediately out of clo thing that
has come into con tact wi thfuel. &
WARNING Risk offire and explosion due
to electros tatic charge
Electros tatic charge can crea tespar ksand
th ereby ignite fuel vapors. #
Before you open the fuel filler cap or
ta ke hold of the pump nozzle, touch the
me tallic vehicle body.
This dischar ges any electros tatic charge
th at may ha vebuilt up. #
Do not get into theve hicle again during
th ere fueling process.
Otherwise, electros tatic charge can
build up again. &
WARNING Risk offire from fuel mixture
Ve hicles with a diesel engine:
If yo u mix diesel fuel with gasoline, theflash
point of the fuel mixture is lo werth an that of
pure diesel fuel.
While the engine is running, component pa rts
in theex haust sy stem may overheat without
wa rning. #
Neverre fuel using gasoline. #
Never mix gasoline with diesel fuel. Driving and parking
13 3
*
NO
TEDo not use diesel torefuel vehicles
with a gasoline engine If
yo u ha veaccidentally refueled with the
wrong fuel:
R Do not swit ch the ignition on. Otherwise
fuel can enter the engine.
Even small amounts of the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. #
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines drained
comple tely. *
NO
TEDo not use gasoline torefuel vehi‐
cles with a diesel engine If
yo u ha veaccidentally refueled with the
wrong fuel:
R Do not swit ch the ignition on. Otherwise,
fuel can enter the fuel sy stem.
Even small amounts of the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. #
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines drained
comple tely. *
NO
TEDama getothe fuel sy stem caused
by ove rfilled fuel tanks #
Only fill th e fuel tank until the pump
nozzle switches off. *
NO
TEFuel may spr ayout when you
re mo vethe fuel pump nozzle #
Only fill th e fuel tank until the pump
nozzle switches off. *
NO
TEDama getopainted sur faces due to
fuel #
Do not spill any fuel on painted sur fa‐
ces. +
ENVI
RONMENTAL NOTEEnvironmental
damage due toimproper handling of fuel If fuels are handled improperly,
they pose a
danger topersons and the environment. #
Do not allow fuels torun into the sew‐
age sy stem, the sur face wate rs,the
ground water or into the ground. Re
quirements:
R The vehicle is unloc ked.
R The auxiliary heating is deactivated.
R The ignition is switched off.
R The front left-hand door is open.
% Do not
get ba ckinto theve hicle during the
re fueling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids
(/ page 340). 1
Fuelfiller flap
2 Fuelfiller cap
% The fuel
filler flap is beside the front left-hand
door when vie wed in the direction of tr avel.
The position of the fuel filler cap 00D4is also
shown in the Instrument Displa y.The ar row
on thefilling pump specifies the side of the
ve hicle. #
Open fuel filler flap 1. #
Turn fuel filler cap 2coun ter-clockwise and
re mo veit. #
Close all vehicle doors topreve nt fuel vapors
from entering theve hicle interior. #
Comple tely slide thefiller neck of the pump
nozzle into theta nk, hook in place and refuel. #
Fillthe fuel tank only until the pump nozzle
switches off. 134
Driving and pa rking
DEF
Note
s on DEF
* NO
TEWhen you open the DEF tank,
small amounts of ammonia vapor may
escape. #
Only fill th e DEF tank in well-ventilated
areas. #
Do not let DEF come into con tact wi th
skin, eyes or clo thes. #
Keep DEF away from children. *
NO
TEDo not ingest DEF. If DEF is swallo
wed: #
Immediately rinse out your mouth thor‐
oughly. #
Drink plenty of water. #
Seek medical attention immediately. *
NO
TEDama gecaused byadditives in
DEF or bydiluting DEF The DEF
exhaust gas af tertre atment sy stem
could be destr oyed bythefo llowing:
R Additives in DEF
R Diluting DEF #
Only use DEF in accordance with ISO
222 41 . #
Do not mix additives. #
Do not dilu teDEF. *
NO
TEDama geand malfunctions caused
by impurities in DEF Impurities in DEF
result in thefo llowing:
R Higher emission values
R Damage tothe catalytic con verter
R Engine damage
R Malfunctions in the DEF exhaust gas
af te rtre atment sy stem #
Avoid impurities in DEF. *
NO
TEDEF residue cr ystallizes af ter
some time. Remo veDEF residue. #
Immediately rinse su rfaces that come in
con tact wi thDEF when filling with
wate r. #
DEF can also be remo ved with a damp
clo thand cold water. #
If DEF has already cr ystallized, clean
using a spon geand cold water. DEF is a li
quid urea solution used forex haust gas
af te rtre atment of diesel engines. In order forthe
ex haust gas af tertre atment tofunction properly,
only use DEF in accordance with ISO 222 41 .
DEF has thefo llowing properties:
R non-t oxic
R colorless and odorless
R non-flammable
DEF availability:
R you can ha veDEF added byfast service at a
qu alified specialist workshop, e.g. an author‐
ized Mercedes-Benz Center.
R DEF is available at numerous gasst ations via
DEF filling pumps.
R alternatively, DEF is available at qualified spe‐
cialist workshops, e.g. an authorized
Mercedes-Benz Center, and at numerous gas
st ations as a DEF refill canis ter or DEF refill
bottle.
% DEF freezes at a
temp erature of appr ox‐
imately 12.2 °F (-11 °C). The vehicle is equip‐
ped with a DEF preheating sy stem at thefa c‐
to ry. This means that winter operation is also
ensured forte mp eratures below 12.2 °F
(-11 °C). If you add DEF at temp eratures
below 12.2 °F (-11 °C), the DEF le vel in the
instrument clus ter may not be displa yed cor‐
re ctly. If the DEF is frozen, drive for at least
20 minutes and then park theve hicle for a
minimum of 30 seconds, so that the le vel is
cor rectly displa yed. In extreme winter condi‐
tions, the time needed todetect theto p-up
amount may be considerably longer. Park the
ve hicle in a warm garage tospeed up this
process.
% Ensure
the connection between there fill con‐
ta iner and vehicle filler neck does not drip. 13 6
Driving and pa rking
#
Place a suitable collector beneath drain hose
2. #
Switch on the ignition. #
Open drain scr ew1 until thewate r/fuel
mixture emerges from drain hose 2.#
Close drain scr ew1 as soon as around
0.2 qt (0.2 liter) of thewate r/fuel mixture has
been collected.
Af ter 30 seconds, the electrical fuel pump
automatically stops the discharge of the
wate r/fuel mixture. #
After draining, switch off the ignition. #
Dispose of the collected water/fuel mixture
in an environmentally responsible manner,
e.g. at a qualified specialist workshop. #
Check that drain scr ew1 has been closed.
If th e engine is running while drain scr ew1
is open, you will lose fuel thro ugh drain hose
2. #
Close the hood (/ page278). #
003A The indicator lamp does not go out
af te r draining: drainthe fuel filter again. #
003AThe indica tor lamp does not go out
af te r the second draining: consult aquali‐
fi ed specialist workshop.
Mercedes-Benz recommends that you ha vethe
fuel filter drained at a qualified specialist work‐
shop. Cleaning and care
Note
s onwashing theve hicle in an automatic
car wash &
WARNING Risk of accident due to
re duced braking ef fect af terwa shing the
ve hicle
The braking ef fect is reduced af terwa shing
th eve hicle. #
Afterth eve hicle has been washed,
brake carefully while paying attention to
th e traf fic conditions until the braking
ef fect has been ful lyrestored. *
NO
TERisk of damage tothe paintwork
and plastic components If
yo uwa sh your vehicle in Touchless Auto‐
matic Car Wash sy stems that use special
cleaning agents, the cleaning agents used can damage
the paintwork or plastic components
of theve hicle. #
Do not wash theve hicle in Touchless
Au tomatic Car Wash sy stems that use
special cleaning agents. Make sure
that the automatic car wash is suitable
fo rth e size of theve hicle.
Before washing theve hicle in an automatic car
wa sh, fold in the outside mir rors and remo veany
additional antennas. Otherwise, the outside mir‐
ro rs, antennas or theve hicle itself could be dam‐
aged.
Make sure any additional antennas are re-ins tal‐
led and that the outside mir rors are fully folded
out again when you lea vethe automatic car
wa sh.
To avo id damage to yourvehicle, obser vethefo l‐
lowing before using an automatic car wash:
R the side windo wsand the sliding window are
comple tely closed.
R the blo werfo rve ntilation and heating is
switched off.
R the windshield wiper switch is in position 005A.
If th eve hicle is very dirty, wash off excess dirt
before cleaning theve hicle in an automatic car
wa sh.
% Re
moving thewa x from the windshield and
th e wiper rubbers af terwa shing theve hicle,
will help avoid smearing and reduce wiper
noise. Note
s on use of a po werwa sher &
WARNING Risk of accident when using
high-pressu recleaning equipment wi th
ro und-spr aynozzles
The wate r jet from a round-spray nozzle (dirt
grinder) may cause damage totires and sus‐
pension components that is not visible.
Components damaged in this wa y may fail
unexpec tedly. #
Do not use high-p ressure cleaning
equipment with round-spray nozzles to
clean your vehicle. #
Damaged tires or suspension compo‐
nents must be replaced immediatel y. Ne
ver use a po werwa sher in theve hicle interior.
The pressurized water created bythe po wer 286
Maintenance and care