2021 MERCEDES-BENZ V-CLASS key battery

as driver assis
tance systems, while others enable
comfort or inf otainment functions.
The following pr ovides you with general informa-
tion rega rding data processing in theve hicle. Addi-
tional information rega rding exactly which data in
yo ur vehicle are collected, sa ved and transmitted
to third parties, and for what purpose, can be
fo und in the information directly related tothe
functional characteristics in question in their
re specti veoperating instructions. This information
is also available online and, depending on theve hi-
cle equipment, digitall y.
P
P er
er sonal data
sonal data
Every vehicle is identi/ed bya uni queve hicle iden-
ti/cation number. Depending on the countr y,this
ve hicle identi/cation number can be used by,for
ex ample, go vernmental authorities todeterm ine
th e identity of theow ner. There are other possibili-
ties for using data collected from theve hicle to
identify theow ner or driver, such as the licence
plate number.
Therefore, data generated or processed bycont rol
units may be attributable toa person or, under cer-
ta in conditions, become attributable toa person.
Depending on which vehicle data are available, it
may be possible tomake inferences about, for
ex ample, your driving behaviour, your location, your
ro ute or your use patterns.
Leg
Leg al r al req
equir
uir ements r
ements r eg
egar
arding t
ding t he disclosur
he disclosur e of
e of
data
data
If legally requ ired todo so, manufacturers are, in
individual cases, legally obliged toprov ide go vern-
mental entities, upon requ est and totheex tent
re qu ired, data stored bythe manufacturer. For
ex ample, this may be the case during the in vestiga-
tion of a criminal o.ence.
Go vernmental entities are themsel ves, in individual
cases and within the applicable legal frame work,
authorised toread out data from theve hicle. In the
case of an accident, information that can help with
an in vestigation can, therefore, be take n from the
airbag cont rol unit, forex ample.
Oper
Oper ational dat ational dat a in t
a in the v
he vehicle
ehicle
This is data rega rding the operation of theve hicle,
which ha vebeen processed bycont rol units.
This includes thefo llowing data, forex ample:
R vehicle status information such as the speed,
longitudinal acceleration, lateral acceleration, number of wheel
revo lutions or thefa stened
seat belts display
R ambient conditions, su chastempe rature, rain
sensor or distance sensor
Generall y,these are volatile data and will not be
stored be yond the period of operation but will only
be processed within theve hicle itself. Control
units, vehicle keys forex ample, oTen contain data
memories. Their use permits thete mp orary or per-
manent documentation of tech nical information
about theve hicle's operating state, component
loads, maintenance requ irements and tech nical
ev ents or faults.
Depending on thete ch nical equipment, thefo llo w-
ing data are stored:
R operating status of system components, such
as /ll le vels, tyre pressure or battery status
R malfunctions or faults in impor tant system
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag deployment or the inter vention
of stability control systems
R information on events in which theve hicle is
damaged
In cer tain cases, it may be requ ired tostore da ta
th at wo uld ha veotherwise been temp orar y.This
may be the case if theve hicle has de tected a mal-
function, forex ample.
If yo u use services, such as repair services and
maintenance work, stored operational data as well
as theve hicle identi/cation number can be read
out and used. They can be read out byservice net-
wo rkemplo yees, such as workshops and manufac-
turers or third parties, such as breakdown ser v-
ices. The same is true in the case of warranty
claims and quality assurance measures.
In general, there adout is per form ed via the legally
prescribed port forth e diagnostics connection in
th eve hicle. The operational data that are read out
document tech nical states of theve hicle or of indi-
vidual components and assist in the diagnosis of
malfunctions, compliance with warranty obliga-
tions and quality impr ovement. Tothat end, these
data, in particular information about component
loads, tech nical events, malfunctions and other
fa ults may be transmitted along with theve hicle
identi/cation number tothe manufacturer. In addi-
tion, the manufacturer is subject toproduct liabil-
ity. Forth is reason, the manufacturer also uses
operational data from theve hicle, forex ample, for 26 26
General no
tes

K
K
e
ey
y Ov
Ov
er
ervie
vie w of ke
w of key functions
y functions &
W
WARNING
ARNING Risk of accident and inju rydue
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R getout and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. &
W
WARNING
ARNING Risk of accident due tothekey
inadver tently turning in the ignition lock
If heavy or lar geobjects are attached tothe
ke y,theke y can inadver tently turn in the igni-
tion loc k. #
Do not attach lar geor heavy objects to
th ekey. #
Remo vetheke y from a bulky bun chof
ke ys before inserting it into the ignition
loc k. *
N
NO
OTE
TE Damage totheke y caused bymag-
netic /elds #
Keep theke yaw ay from strong magnetic
/elds. Ke
y (e xamp le:vehicles with an EAS Y-PA CK tailgate
and/or rear wind owwhich can be opened sepa-
ra tely)
1 Indicator lamp
2 Toopen or close the EAS Y-PA CK tailgate, or to
unlock there ar wind owwhich can be opened
separately
3 Tolock theve hicle cent rally
4 Tounlock the EAS Y-PA CK tailgate and sliding
doors, or tounlock and open/close the elec-
tric sliding door
5 Emer gency key
6 Tounlock theve hicle cent rally or only the driv-
er's door
% Ifyo u do not open theve hicle within appr ox-
imately 40 seconds of unlocking, theve hicle
will lock again and anti-theT pr otection will be
primed again.
Do not keep theke yto get her with elect ronic devi-
ces or me tallic objects. This can a.ect theke y's
functionalit y.
% Ifth e indicator lamp does not light up when
yo u press the% or& button, the bat-
te ry is dischar ged.
Re place theke y battery (/ page 52). A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the acous
he acous tic loc
tic locking
kingv
ver
er i/-
i/-
cation
cation signal
signal Multimedia system:
4 © 5
Settings 5
Vehicle #
Activate or deactivate Acoustic lock.
% Please not
Please not e:
e: Opening and closing
51
51

The selected setting
forth e acoustic locking
ve ri/cation signal must comply with the appli-
cable national road tra1c rules. In some coun-
tries, including German y,using the acoustic
locking veri/cation signal is forbidden bytraf-
fi c la ws(in accordance with §16 Para. 1 and
§30 Para. 1 of the German national road traf-
fi c re gulations). The driver of theve hicle must
ensu recompliance with these regulations. In
countries whe rethe use of this function is for-
bidden, this function is not activated in the
ve hicle and must not be activated. Changing t
Changing t
he unloc
he unlocking se
king settings
ttings The
key has thefo llowing adjustable unlocking
functions:
R unlock centrally
R unlock the driver's door #
T
To switc
o switc h be
h betw
tween se
een se ttings:
ttings: press and hold the
% and& buttons at the same time for
appr oximately six seconds until the indicator
lamp 0ashes twice. #
T
To unloc
o unloc k t
k the v
he v ehicle centr
ehicle centr all
ally when t
y when t he
he
unloc
unloc king function is select
king function is select ed f
ed for t
or the dr
he dr iv
iver's
er's
door
door :
:press the% button a second time. R
R
emo
emo ving and inser
ving and inser ting t
ting t he emerg
he emerg encykey
ency key %
The anti-theT ala rmsystem (A TA) is triggered
when you unlock and open theve hicle using
th e emer gency key (/ page 68). #
T
To r
o r emov
emov e:
e:push release catch 1inthe direc-
tion of the ar row and simultaneously pull emer-
ge ncy key2 comple tely out of thekey. #
T
To insert
o insert: :push emer gency key2 comple tely
into theke y until it engages and release catch
1 is back in its initial position. R
R
eplacing t
eplacing t heke
he key batt
y batt ery
ery &
D
DAN
AN GER
GER Risk of fata l injuries due toswal-
lowing batteries
Bat teries contain toxic and cor rosive subs tan-
ces. Swall owing batteries may cause se vere
internal burns tooccur within two hours.
There is a risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e battery compartment does not
close securel y,do not use theke y any
lon ger and keep it out of there ach of
ch ildren. #
If batteries are swallo wed, seek medical
attention immediatel y. +
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
damage due toimproper disposal of bat-
te ries Batteries contain pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries in an
environmentally responsible manner.
Ta ke dischar ged batteries toaqu ali/ed
specialist workshop or toa collection
point for used batteries. R
R
eq
eq uir
uir ements
ements
R youre qu ire a CR 2025 3 V cell battery
Changing t
Changing t he batt
he battery
ery
Mercedes-Benz recommends that you ha vethe
battery changed at a quali/ed specialist workshop. #
Remo vethe emer gency key (/ page 52). 52
52
Opening and closing

#
Press eme rgency key2 into the opening in
th eke y in the direction of the ar row until bat-
te ry compartment co ver1 opens. When
doing so, do not hold battery compartment
co ver1 shut. #
Tapth eke y against the palm of your hand so
th at battery 3falls out of the battery com-
partment. #
Insert the new battery into the battery tr ay
with the positive pole facing upwards. Use a
lint-f ree clo thtodo so. #
Fit battery compartment co ver1 tothekey
casing with the front lugs /rst and push it
closed. #
Slide emer gency key2 back in tothekey
( / page 52). R
R
ectifying pr
ectifying pr oblems wit
oblems with t
h the key
he key It is no long
It is no long
er possible t
er possible t o loc
o lock t
k the v
he v ehicle using t
ehicle using t he
he
key.
key.
Po ssible causes:
R The doors are not closed proper ly.
R The central locking system has malfunctioned. #
Close the doors proper lyand lock theve hicle
again. #
Lock theve hicle using the emer gency key
( / page 52) or press down the locking pins
and then close the doors. #
Have the central locking system checked as
soon as possible at a quali/ed specialist work-
shop.
Y
Y ou can no long ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle.
ehicle.
Po ssible causes:
R The key battery is weak or dischar ged.
R The key is faulty. #
Check the battery using the indicator lamp and
re place the batter y,if necessary (/ page 51). #
Use the emer gency key element tolock and
unlock theve hicle (/ page 52). #
Have theke ych ecked at a quali/ed specialist
wo rkshop. The v
The v
ehicle will no
ehicle will no t st
t star
art wit
t wit h t
h the key.
he key.
Po ssible causes:
R The on-board elect rical system voltage is too
lo w. #
Switch o. all non-essential consume rs, such
as interior lighting, and try tostart theve hicle
again.
If th is does not work: #
Check the star ter battery and charge it, if nec-
essary (/ page 240).
or #
Jump-start theve hicle.
or #
Consult a quali/ed specialist workshop.
Y
Y ou hav
ou hav e los
e lost akey.
t a key. #
Have theke y deactivated at a quali/ed special-
ist workshop. #
Report the loss immediately totheve hicle
insu rers. #
If necessar y,ha ve the loc kschanged as well. Doors
Doors
U
Unloc
nloc king and opening t
king and opening t he door fr
he door from inside
om inside Door handle (e
xample: driver's door) #
Pull door handle 2.
Saf ety pin 1pops up when the door is
unloc ked. Opening and closing
53
53

th
e "Cooling with air dehumidi/cation" function
is switched on. Conv
Conv
enience opening/closing
enience opening/closing &
W
WARNING
ARNING Risk of entrapment due tonot
paying attention during con venience clos-
ing
When the con venience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side windo ws. #
When the con venience closing feature is
operating, moni torth e entire closing
process and make sure that no body
parts are in the closing area. &
W
WARNING
ARNING Risk of entrapment when open-
ing a side window
When opening a side windo w,parts of the body
could be dr awn in or become trapped between
th e side window and window frame. #
When opening, make sure that nobody is
to uching the side windo w. #
Release the button immediately if some-
body becomes trapped. #
Conv
Conv enience closing wit
enience closing wit h t
h the air
he air -r
-r ecir
ecir culation
culation
r
r ock
ock er switc
er switc h:
h:press and hold theg rock er
switch up or down until the side windo ws auto-
matically close.
The indicator lamp overth eg rock er switch
lights up. The initial position of the side win-
do ws is stored. Air-recirculation mode is acti-
va ted.
If yo u open the side windo wsmanually aTer
using con venience closing, they /rst open
au tomatically tothe initial position before con-
ve nience closing. #
T To int
o int err
errup
upt conv
t conv enience closing:
enience closing: release the
g rock er switch. #
Conv
Conv enience opening wit
enience opening wit h t
h the air
he air -r
-recir
ecir culation
culation
r
r ock
ock er switc
er switc h:
h:press and hold theg rock er
switch up or down until the side windo ws auto-
matically open.
The indicator lamp overth eg rock er switch
goes out. Air-recirculation mode is deactivated. #
T To int
o int err
errup
upt conv
t conv enience opening:
enience opening: release the
g rock er switch. #
Pr
Pre-entr
e-entr y climat
y climat e contr
e control and conv
ol and conv enience
enience
opening wit
opening wit h t
h t he key
he key :
:press and hold the%
button on thekey.
The side wind ows are automatically opened
and the climate control blo wer is activated. #
T
To int
o int err
errup
upt conv
t conv enience opening:
enience opening: release the
% button. Switc
Switc
hing t
hing t he r
he rear windo
ear windo w heat
w heater
er on/o.
on/o. The
rear wind owheater consumes a lot of elect ric-
ity. You should therefore switch o. there ar win-
dow heater as soon as there ar wind owis clear. #
Switch on theve hicle. #
Press theto p or bottom of the¤ rock er
switch.
If th e indicator lamp abo vethe¤ rock er
switch lights up, there ar wind owheater is
switched on.
The rear wind owheater will switch o. automati-
cally aTer a fewminutes. Switc Switc
hing t
hing t he r
he residual heat utilisation
esidual heat utilisation on/o.
on/o. When
theve hicle is switched o., it is possible to
make use of there sidual heat of the engine toheat
or ventila tetheve hicle interior for appr oximately
30 minutes. The heating or ventilation time
depends on the set vehicle interior temp erature. #
Switch o. theve hicle or remo vethekey. #
T
To switc
o switc h on:
h on:press theto p or bottom section
of the! rock er switch or press Á.
When residual heat utilisation is switched on,
th e indicator lamp abo vethe! rock er
switch or theÁ button will light up.
The blo wer will run at a low speed rega rdless
of the air0ow setting.
If th e "Residual heat" function is switched on at
high outside temp eratures, only the stationary
ve ntilation will be switched on. The blo wer will
th en run at medium speed. #
T
To switc
o switc h
ho.:
o.: press theto p or bottom section
of the! rock er switch or press Áagain.
The indicator lamp abo vethe! rock er
switch or theÁ button goes out.
Re sidual heat utilisation will switch o. automati-
cally in thefo llowing cases:
R aTer a running time of app roximately
30 minutes
R ifth e star ter battery's charge status is too low 128
128
Climate control

#
Ifre d mark 3is not aligned with green area
2, unlock lock 6in handwheel 1with the
key. #
Pull handwheel 1outwards. Turn red mark
3 into green area 2of ball neck 4until
handwheel 1engages. #
Slide ball neck 4vertically into the holder
until it audibly engages.
The ball neck will lock automaticall y.Green
mark 3on handwheel 1is aligned with
gr een area 2on ball neck 4.
Only if thegr een mark on the handwheel is
aligned with thegr een area on the ball neck is
th e ball neck securely engaged. #
Lock lock 6in handwheel 1with thekey. #
Remo vetheke y and place cap 5on lock 6.
The ball neck is securely installed only if the
ball neck can be loc ked and theke yre mo ved. #
Store the trailer hitch key in a safe place, e.g.
in theve hicle document wallet.
If yo u cannot remo vetheke y,the ball neck may be
dirty. #
Remo vethe ball neck (/ page 179) and clean
it (/ page 232).
If yo u still cannot lock the ball neck aTer cleaning
it, the trailer hitch is damaged. #
Remo vethe ball nec k.
Safe trailer operation is not gua ranteed. The
ball neck must no longer be used for trailer
operation. #
Have the trailer hitch checked at a quali/ed
specialist workshop. R R
emo
emo ving t
ving t he ball neck
he ball neck R
R
eq
eq uir
uir ements:
ements:
R The trailer hitch key is available. #
Remo vecap 5from lock 6in handwheel
1. #
Unlock lock 6in handwheel 1with thekey. #
Hold ball neck 4in place. #
Pull handwheel 1outwards. Turn red mark
3 on handwheel 1into green area 2of
ball neck 4until handwheel 1engages. Pay
attention tothe pictog ram on handwheel 1. #
Pull ball neck 4out down wards. #
Ifth e ball neck is dirty, clean it (/ page 232).
% Depending on theve hicle equipment, the
holder forth e ball neck on theve hicle can be
pr otected with a co ver in the bumper. #
Store the ball neck with theke y inser ted in the
st ow age space on theright-hand side in the
re ar and remo vethe co verfo rth e ball neck
holder. #
Insert the co ver in the lo wer section of the
bumper and tighten the two quick- re lease fas-
te ners forth e co ver (/ page 178). Coupling/uncoupling a tr
Coupling/uncoupling a tr
ailer
ailer R
R
eq
eq uir
uir ements:
ements:
R The ball neck must be engaged in a securely
locked position.
Tr ailers with 7-pin plugs can be connected tothe
ve hicle using thefo llowing adap ters:
R Adapter plug
R Adapter cable
Coupling a tr Coupling a tr ailer
ailer
* NO NOTE TEDamage tothe star ter battery due
to full dis charge Charging
the trailer battery using the po wer
supply of the trailer can damage the star ter
batter y. #
Do not use theve hicle's po wer supply to
ch arge the trailer batter y. 1
Eyelet for break away cable Driving and parking
179
179

When jump-starting, obser
vethefo llowing points:
R The battery is not accessible in all vehicles. If
th eot her vehicle's battery is not accessible,
starting assis tance is tobe pr ovided using a
donor battery or a starting assistance device.
R You may only jump-start theve hicle when the
engine and exhaust system are cold.
R Ifth e battery is frozen, do not start theve hicle.
Let the battery thaw /rst.
R Starting assis tance may only be pr ovided using
batteries with a nominal voltage of 12 V.
R Only use jump leads that ha vea su1cient
cross-section and insulated term inal clamps.
R Ifth e battery is fully dischar ged, attach the
donor battery for a few minutes before
attem pting tostart. This charge sth e dis-
ch arge d battery a little.
R Make sure that the two vehicles do not touch.
Jump leads and fur ther information rega rding start-
ing assistance can be obtained at any quali/ed
specialist workshop.
Ensure thefo llowing before connecting the jump
lead:
R The jump leads are not damaged.
R Parts of thete rm inal clamps which are not
insulated do not come into contact with other
me tal parts while the jump leads are connec-
te dto the batter y.
R The jump leads do not touch moving parts
when theve hicle is star ted, such as theV- belt
pulley or thefa n. #
Apply the parking brake. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: shiTthe
transmission toposition j. #
V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: shiTto
neutral. #
Switch o. all electrical consumers, e.g. audio
equipment, blo wer. #
Switch o. theve hicle and remo vethekey. #
Open the bonnet (/ page 224). Connecting and disconnecting t
Connecting and disconnecting t
he jum
he jump lead
p lead Example: jump-start connection point
#
Push contact pr otection co ver1 ofthe jump-
start connection point towa rdsth ere ar of the
ve hicle against the spring pressure as far as it
will go.
Po siti veterm inal 5ofthe jump-start connec-
tion point is visible. Te
rm inal connection diag ram #
Remo vethe co ver from positive term inal 3of
th e donor batter y. #
Connect the positive term inal clamp of the
jump lead topositive term inal 3ofthe donor
batter y,and then topositive term inal 5ofthe
jump-start connection point. #
Connect the negative term inal clamp of the
jump lead tonegative term inal 2ofthe donor
batter y,and then toear thcontact 4ofyour
ow nve hicle. Breakdown assis
tance
241 241

K
K
e
ey
y Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
 Key does not belong to
vehicle *Y
ou ha veinser ted an incor rect key in tothe ignition loc k. #
Use the cor rect key.
 Remove key *T
hekey is in the ignition loc k. #
Remo vethekey.
Â
Replace key *T
hekey needs tobe replaced. #
Consult a quali/ed specialist workshop.
 Change key batteries *T
hekey battery is dischar ged. #
Replace the battery (/ page 52). V V
ehicle
ehicle Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
Clutch overheated Avoid
pulling away Engage/
disengage clutch quickly
if req. *A
warning tone also sounds. The clutch is under heavy load and the
permissible operating temp erature of the clutch has been exceeded.
Av oid frequent pulling away and driving at walking pace overex tended
distances. #
Stop in accordance with the tra1c conditions. #
Secure theve hicle against rolling away. #
Leavethe engine running.
The clutch will cool more quickly when the engine is running.
or #
If possible, continue driving at a steady speed. #
Remo ve yo urfoot from the clutch pedal and do not let the clutch
slip.
The clutch may also cool down during driving.
Cooling down can take afew minutes. When the clutch has cooled
down, the display message will disappear and the clutch will be fully
operational again.
Ò *T
hetailgate is open. #
Close theta ilgate. 300 300
Display message
s andwarning and indicator lamps