GWARNING
If you leave children unsupervised in the vehi-
cle, they coul dset it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehiclee quip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularl ychildren are subjected
to prolonged exposure to extreme heato r
cold, there is arisk of injury ,possibly even
fatal .Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularl yonthe metal parts of the child
restraint system. There is arisk of injury.
If you leave the vehicle, taking the child with
you ,alway sensure that the child restraint
system is not exposedtod irect sunlight. Pro-
tect it with ablanket, for example. If the child
restraint system has been exposedtod irect
sunlight, let it cool downb efore securing the
child in it. Never leave children unattended in
the vehicle.
Always make sure that all vehicleo ccupants are
positioned properly in their seats and have cor-
rectly fastened their seat belts. Take particular
care with children.
Please take note of the safety notes on seat
belts (
Ypag e45) and the notes on their correct
use (Ypag e45).
Ab ooster seat may be necessary to achieve
propers eat beltp ositioning for children over
41 lbs (18 kg )until they reach aheight where a lap/shoulder beltc
an be installed properly with-
out abooster seat.
Special seat bel tretractor
GWARNING
If the seat beltisr eleased while driving, the
child restraint system wil lnolonger be
secure dproperly.T he special seat beltr etrac-
tor is disableda nd the inertia real draw sina
portion of the seat belt. The seat beltc annot
be immediatel yrefastened. There is an
increased risk of injury ,possibly even fatal.
Stop the vehiclei mmediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat beltr etractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with aspecial seat belt
retractor. When activated, the special seat belt
retractor ensure sthat the seat beltc annot
slacken once the child seat is secured.
Installing achild restraint system:
XMake sure you observe the child restraint
system manufacturer's installation instruc-
tions.
XPul lthe seat belts moothly from the belto ut-
let.
XEngage seat beltt ongue in beltbuckle.
Activating the special seat beltr etractor:
XPullthe seat belto ut fullyand let the inertia
reel retract it again.
Whil ethe seat beltisr etracting, you should
hear aratcheting sound .The special seat belt
retractor is enabled.
XPush the child restraint system downsot hat
the seat beltist ight and does not loosen.
Removing the child restraint system and deac-
tivating the special seat beltr etractor:
XMake sure you observe the child restraint
system manufacturer's installation instruc-
tions.
XPress the release button of the seat belt
buckle and guide the seat beltt ongue back
toward sthe belts ash guide.
The special seat beltr etractor is deactivated.
Children in the vehicle57
Safety
Z
correctly routed from the vehicle beltoutlet to
the shoulder bel tguide on the chil drestraint
system. The shoulder bel tstrapm ustb erouted
forward sand downwards from the vehicle belt
outlet. If necessary, adjust the vehicle bel tout-
le ta nd the front-passenger seata ccordingly.
Alway sobserve the chil drestraint system man-
ufacturer's installation and operating instruc-
tions.
Override features/Child-proof locks
Important safety notes
GWARNING
If childre nare traveling in the vehicle ,they
could:
Rope ndoors, thus endangering otherp eople
or roadu sers
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There is ariskofana ccident and injury.
Alway sactivate the child-proof locks and
overrid efeature if childre nare traveling in the
vehicle .Whenl eaving the vehicle ,alway stake
the key with yo uand lock the vehicle .Never
leave childre nunattende dinthe vehicle.
Child-proof lock/override feature for:
RSliding doors (Ypage 61)
GWARNING
If yo ulea ve childre nunsupervised in the vehi-
cle ,they could set it in motio nby,for example:
Rrelease the parking brake.
Rshift the automatic transmission outoft he
parking position P.
Rstartthe engine.
In addition, they may operate vehicle equip-
ment and become trapped .There is arisko f
an accident and injury.
Whe nleaving the vehicle ,alway stake the
SmartKey with yo uand lock the vehicle .Never
leave childre nunsupervised in the vehicle.
GWARNING
If persons, particularly childre nare subjected
to prolonged exposure to extrem eheato r
cold ,there is ariskofi njury, possibly even
fatal. Neve rlea ve childre nunattende dinthe
vehicle.
GWARNING
If the chil drestraint system is subjecte dto
direct sunlight, parts may get very hot. Chil-
dre nm ay burn themselves on these parts,
particularly on the metalp arts of the child
restraint system. There is ariskofi njury.
If yo uleave the vehicle ,taking the chil dwith
you, always ensure that the chil drestraint
system is not exposed to direct sunlight. Pro- tect it with ablanket, for example. If the child
restraint system hasb eene xposed to direct
sunlight, le titcool dow nbefore securing the
chil dini t. Neve rlea ve childre nunattende din
the vehicle.
Child-proof lock for sliding door
Sliding doo r(example: lef tsideoft he vehicle)
:
Chil dsafety bolt
2Sliding doo rreleased
3Sliding doo rsecured –then make sure that
the child-proof locks are working properly.
You can secure each sliding doo rindividually
with the child-proof locks on the sliding doors.
As ecured sliding doo rcannot be opened from
inside the vehicle .Whent he vehicle is unlocked,
the sliding doo rcan be opened from the outside.
If the electri csliding doo rissecured ,only the
sliding doo rrea rc ontrolsa re deactivated. If the
electrics liding doo risunlocked ,you can open
Children in the vehicle61
Safety
Z
the electricslidin gdoorusing the corresponding
Å orÆ sliding door button in the center
consol e(
Ypage 75).
Pets in the vehicle
GWARNING
If yo uleave animals unattended or unsecured
in the vehicle, theyc ould press buttons or
switches ,for example.
As aresult, theyc ould:
Ractivate vehicl eequipment and become
trapped ,for example
Ractivate or deactivate systems, thereby
endangering othe rroa du sers
Unsecured animals could also be flung around
the vehicl einthe event of an accident or sud-
de ns teering or braking ,thereb yinjurin gvehi-
cle occupants. There is ariskofana ccident
and injury.
Never leav eanimals unattended in the vehi-
cle .Alway ssecurea nimals properly during
the journey ,e.g.u se asuitabl eanimalt rans-
port box.
Driving safety systems
Overview
In thiss ection, yo uwillf indi nformation about
the following drivin gsafety systems:
REBD ( Ele ctronic Brake Force Distribution)
RABS ( Anti-lock Braking Sys tem)
RBAS ( Brake Assist System)
RESP®(E le ctronic Stability Program)
Important safety notes
If yo ufailtoa dapt your drivin gstyle or if yo uare
inattentive, the drivin gsafety systems can nei-
therr educe the ris kofaccident nor override the
laws of physics .Drivin gsafety systems are
merel yaidsd esig nedtoa ssistdriving. Yo uare
responsibl efor the distance to the vehicl ein
front, for vehicl espeed, braking in good time
and for staying in your lane. Alway sadapt your drivin
gstyle to the prevailing roa dand weather
conditions and maintain asufficient, safe dis-
tance fromo therroa du sers.D rive carefully.
Please note thatt he drivingsafety systems
describe donlyw orko ptimally when:
Rthere is adequate contact between the tires
and the roa dsurface
Ryo uu sewinter tire s(M+ Stires),w iths now
chains if necessary,w hent he roa dconditions
ar ew intry
Rthe spee dinformation determine dbythe
vehicl eiswithint he legall yprescribe ddisplay
accuracy
Pa yp articular attentio ntothe information
regarding tires, coding of the whee lsizeg roups,
tire trea dand winter operatio nunder "Wheels
and tires" (
Ypage 267).
ABS (Anti-lock Braking System)
General notes
ABS regulate sbrake pressure in such awaythat
the wheels do not lock when yo ubrake. This
allows yo utocontinue steering the vehicl ewhen
braking.
The ò warning lamp in the instrument cluster
lights up when the ignition is switched on. The
lamp goes ou twhent he engine starts running.
Important safety notes
Observe the important safety guideline sfor the
drivin gsafety system(Ypage 62).
ABS works fromas peedof abou t5mph
(8 km/h), regardles sofroad-surface conditions.
ABS works on slippery surfaces ,evenw heny ou
onl ybrake gently.
GWARNING
If ABS is faulty, the wheels could lock when
braking .The steerability an dbraking charac-
teristics maybes everel yimpaired. Addition-
ally ,fur the rdrivin gsafety systems ar edeac-
tivated .Ther eisani ncreasedd angerofs kid-
ding and accidents.
Drive on carefully. Hav eABS checked imme-
diately at aquali fied specialis tworkshop.
62Driving safet ysystems
Safety
If ABS is malfunctioning, theòwarning lamp
(Ypage 221) lights up whil ethe engine is run-
ning and the display shows amessage:
Ron vehiclesw ithoutsteering wheel buttons
(Ypage 189)
Ron vehiclesw ith steering wheel buttons
(Ypage 203)
BAS, Hill Start Assist and ESP®and its driving
safety systems and other driving systems also
fail .Observe the notes on the òwarning
lamp and the display messages.
Braking
If ABS intervenes when braking, you wil lfeel a
pulsating in the brake pedal.
The pulsating brake pedalc an be an indication
of hazardous road conditions and functions as a
reminder to take extra care whiled riving.
XIf ABS intervenes:continue to depresst he
brake pedalw ith force until the braking sit-
uatio niso ver.
XTo make afull brake application: depress
the brake pedalw ith full force.
BAS (Brake Assist System)
General notes
BAS operates in emergency braking situations.
If you depresst he brake pedalq uickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
Observe the important safety guidelines for the
driving safety system (Ypage 62).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased .There is arisk of an accident.
In an emergency braking situation, depress
the brake pedalw ith full force. ABS prevents
the wheel sfrom locking.
If BAS is malfunctioning, the ÷warning lamp
lights up whil ethe engine is running
(
Ypage 221) and the display shows amessage:
Ron vehiclesw ithoutsteering wheel buttons
(Ypage 193)
Ron vehiclesw ith steering wheel buttons
(Ypage 207)
Braking
XKeep the brake pedalf irmly depressed until
the emergency braking situation is over.
ABS prevents the wheel sfrom locking.
The brakes willf unction as usual once you
release the brake pedal. BAS is deactivated.
EBD (electroni cbrake force distribu-
tion)
General notes
EBD monitors and controls the brake pressure
to the rear wheels. This enables EBD to improve handling during braking.
Important safety notes
Observe the important safety guidelines for the
driving safety system (Ypage 62).
GWARNING
If EBD is malfunctioning, the rear wheelsc an
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You shoul dtherefore adapt you rdriving style
to the different handling characteristics. Have
the brake system checked at aqualifieds pe-
cialist workshop.
If EBD is malfunctioning, the $warning lamp
(
Ypage 220) lights up whil ethe engine is run-
ning and the display shows amessage.
Ron vehiclesw ithoutsteering wheel buttons
(Ypage 192)
Ron vehiclesw ith steering wheel buttons
(Ypage 206)
Other driving systems and driving safety sys-
tems then also fail.
Driving safety systems63
Safety
Z
Theft deterrentlocking system
Immobilizer
XTo activate: remove the key fromt he ignition
lock.
XTo deactivate: turnthe key to position 2in
the ignition lock.
The immobilize rprevents your vehicl efrom
being started withou tthe correct key.
Alway stake the key with yo uand lock the vehi-
cle when leaving the vehicle. If yo uleave the key
in the vehicle, anyone can start the engine.
iThe immobilize risalwaysdeactivated when
yo us tart the engine.
ATA (Anti-Theft Alarm system)
XTo arm: lock the vehicl ewitht he key.
Indicato rlam p: in the overhead control
panel flashes.
XTo disarm: unlock the vehicl ewitht he key.
or
XInsert the key into the ignition lock.
If the alar msystem is armed ,avisualand audi-
bl ea larm is triggered when the following are
opened:
Rad oor
Rthe vehicl ewitht he mechanical key
Rthe tailgate/rea rdoor
Rthe hood
XTo sto pthe alarm: press the%or&
button on the key.
or
XInsert the key into the ignition lock.
The alar mstops. The alar
misnot switched off ,evenify ouclose
the open door thatt riggered it, for example.
66Theftdeterrentl ockingsystem
Safety
Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print.Country-specific variation sare possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to system sand function srelevantt o
safety.
Read the information on qualified specialist
workshops (
Ypage 29).
Key
Important safetyn otes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle' sequipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parkin gbrake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an acciden tand injury.
When leaving the vehicle, always tak ethe
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock .This could
cause the engin etobeswitched off. There is a
risk of an accident.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
insertin gthe SmartKey int othe ignition lock.
!Keep the SmartKey away from strong mag-
netic fields. Otherwise, the remotec ontrol
function could be affected.
Strongm agnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the key:
Rwith electronic devices,e .g.am obile phone
or another key
Rwith metallic objects, e.g. coinsorm etal foil
Rin metallic objects, e.g. metal cases
This can affectt he key's functionality.
Key functions
:Battery checklamp
;&To lock the vehicle centrally
=5To unlock the sliding doors and the
tailgate or rear door or to unlock and open or
close the electric sliding door
?Mechanical key
A% To unlock the vehicle centrally or
unlock the frontd oor(s) only
The vehicle’s equipment includes 2keys. There
is an mechanical key in each key.
The key can be used to unlock the vehicle from
some distance. To preventt heft, only use the
key in the immediatev icinity of the vehicle.
Change the batteries immediately if battery
checkl amp:does not light up briefly with
every press of abutton (
Ypage 69).
XTo unlock centrally: press the%button.
The turn signals flash once.
Key67
Opening and closing
Z
XTo unlockthe sliding doors and the tail-
gate or rear doo ronly:p ress the 5but-
ton.
The turn signals flash once.
iIf yo udon ot open the vehicl ewithina pprox-
imately40s econds of unlocking:
Rthe vehicleislocked again.
Rthe anti-thef tprotection is armed again.
XTo lock centrally: press the&button.
The indicator lamps flash thre etime sif:
Rthe anti-thef tprotection is armed.
Rallt he doors and the tailgate or rea rdoor
are closed.
XCheck the locking knobs on al lthe doors.
The locking knobs must al lbeinthe lowered
position.
The key's factory setting enables yo utocen-
trally lock and unlock the following:
Rthe driver's and the front-passenger door
Rthe sliding doors
Rthe tailgate or rea rdoor
In an emergency, the driver's door can also be
unlocke dmanuall yusing the mechanical key
(
Ypage 68).
Yo uc an also set an audibl esignaltoc onfirm
thatt he vehicl ehasbeen locked .The audible
locking-verification signalc an be switched on/
off:
Rusing the on-board compute ronvehicles with
steering whee lbuttons (Ypage 187)
Rat as pecialist qualified workshop for vehicles
withou tsteering whee lbuttons
After unlocking using the remote control, the
surround lighting also goe sonint
he dark. For
ve
hicles with steering whee lbuttons, the sur-
round lighting can be activate dand deactivated
in the on-board compute r(
Ypage 186).
Changingthe settings of the locking
system
If yo utravel alone alot,y ou mayw ishtoc hange
the settings of the locking system .Press
the % button to unlock:
Rthe driver's and front-passenger door (Cargo
Van)
or
Rthe driver's door (Passenger Van)
XTo chang ethe setting: press and hol ddown
the % and& buttons simultaneously
unti lthe battery check lamp flashe stwice.
(
Ypage 67).
If the setting of the locking system is changed
withint he signalr angeoft he vehicle, press the
& or% button to:
Rlock or
Runlock the vehicle
The key now functions as follows:
XTo unloc kthe driver' sdoororf rontdoors:
press the %button once.
XTo unloc kcentrally: brieflypress the %
button twice.
XTo lock centrally: press the&button.
XTo restore factory settings: press and hold
down the %and& buttons simultane-
ouslyu ntilthe battery check lamp flashes
twice (
Ypage 67).
The key unlocks the vehicl ecentrall yagain .
Mechanical key
General notes
If the vehicl ecan no longer be locked or
unlocke dwitht he key,u sethe mechanical key.
The anti-thef talarm system (ATA) is triggered
when yo uunlock and open the vehicl eusing the
mechanical key (
Ypage 66).
The alarm can be disabled in the following two
ways:
XPress the %or& button on the key.
or
XInsert the key into the ignition lock.
Removing the mechanical key
68Key
Opening and closing
XSlide release catch:in the direction of the
arrow and ,atthe same time ,remove mechan-
ica lkey ; from the key completely.
Inserting the mechanical key
XPush mechanical key ;completely into the
key unti litengages and release catch :is
back in its basic position.
Unlocking/locking the vehicle using
the mechanical key
The doo rloc kf or unlocking in an emergency is
on the driver’ sdoor.
XTo unloc kthe driver's door: insert the
mechanical key fully into the driver' sdoor
lock and turn it counter-clockwise.
The driver’ sdoorisu nlocked.
XTo lock the vehicle: lock alldoors excep tthe
driver' sdoorfrom the inside. To do this ,press
dow nthe doo rloc king buttons.
XInsert the mechanical key fully into the driv-
er's doo rloc ka nd turn it clockwise.
The driver' sdoorisl ocked.
Battery of the key
Important safety notes
GWARNING
Batterie scontai ntoxic and corrosiv esubstan-
ces. If batteries are swallowed, it can result in
severe health problems .There is ariskoff atal
injury.
Kee pbatteries outoft he reach of children. If
ab attery is swallowed, see kmedica lattention
immediately.
HEnvironmental note
Batterie scontai ndangerous
substances. It is against the
la wtod ispose of them with
the householdr ubbish. They
mus tbec ollected separately
and recycle dtoprotect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to aquali fied spe-
cialist workshoporas pecial
collection point for used bat-
teries.
Mercedes-Benz recommend sthat yo uhavet he
battery changed at aquali fied specialist work-
shop.
Checking the battery
XPress the &or% button.
If battery check lamp :lights up briefly, the
battery is sufficiently charged.
If battery check lamp :doe snot light up
briefly, the battery is empty.
XChang ethe battery (Ypage 69).
If the key battery is checke dwithin the signal
rang eoft he vehicle, pressing the &or%
button results in:
Rlock or
Runlock the vehicle
iThe battery may be obtaine datany qualified
specialist workshop.
Changing the battery
You need atypeC R2 025 3Vc ellbattery.
XPull outt he mechanical key from the key
(Ypage 68).
Key69
Opening and closing
Z