2021 MERCEDES-BENZ V-CLASS MPV change key battery

Gene
rally, these are volatile data and will not be
st ored be yond the period of operation but will
only be processed within theve hicle itself. Con‐
trol units, vehicle keys forex ample, of ten contain
da ta memories. Their use permits thete mp orary
or permanent documentation of tech nical infor‐
mation about theve hicle's operating state, com‐
ponent loads, main tenance requirements and
te ch nical events or faults.
Depending on thete ch nical equipment, thefo l‐
lowing data are stored:
R operating status of sy stem components, such
as fill le vels, tyre pressure or battery status
R malfunctions or faults in impor tant sy stem
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag deployment or the inter vention
of stability control sy stems
R information on events in which theve hicle is
damaged
In cer tain cases, it may be requ ired tostore data
th at wo uld ha veotherwise been temp orar y.This
may be the case if theve hicle has de tected a
malfunction, forex ample.
If yo u use services, such as repair services and
maintenance work,st ored operational data as
we ll as theve hicle identification number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manufacturers or third parties, such as
breakdown services. The same is true in the case
of wa rranty claims and quality assurance meas‐
ures.
In general, there adout is per form ed via the
legally prescribed port forth e diagnostics con‐
nection in theve hicle. The operational data that
are read out document tech nical states of the
ve hicle or of individual components and assist in
th e diagnosis of malfunctions, compliance with
wa rranty obligations and quality impr ovement. To
th at end, these data, in particular information
about component loads, tech nical events, mal‐
functions and other faults may be transmitted
along with theve hicle identification number to
th e manufacturer. In addition, the manufacturer is
subject toproduct liability. Forth is reason, the
manufacturer also uses operational data from the
ve hicle, forex ample, forre calls. These data can
also be used toexamine the cus tomer's warranty
and guarantee claims. Fa
ult memories in theve hicle can be reset by a
service outlet or at your requ est as part of repair
or maintenance work.
Con venience and inf otainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rol settings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself.
Depending on theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, films or pho‐
to sfo r playback in an integrated multimedia
sy stem
R address book data for use in an integrated
hands-free sy stem or an integrated navigation
sy stem
R entered navigation destinations
R data on the use of Internet services
These data for con venience and inf otainment
functions may be sa ved locally in theve hicle or
th ey may be located on a device which you ha ve
connected totheve hicle, such as a smartphone,
USB flash drive or MP3 pla yer.If yo u ha ve
entered these data yourself, you can dele tethem
at any time.
This data is transmit ted from theve hicle tothird
parties only at your requ est. This applies, in par‐
ticular, when you use online services in accord‐
ance with the settings that you ha veselected.
Smartphone integ ration (e.g. Android Autoor
Apple CarPlay ®
)
If yo ur vehicle is equipped appropriatel y,yo u can
connect your smartphone or ano ther mobile end
device totheve hicle. You can then cont rolth em
by means of the cont rol elements integrated in
th eve hicle. The smartphone's picture and sound
can be output via the multimedia sy stem. Simul‐
ta neously, specific items of information are trans‐
fe rred to yo ur smartphone. Depending on the
type of integration, this includes position data,
day/night mode and other general vehicle sta‐
tuses. For more information, please consult the Gene
ral no tes 25

The selected setting
forth e acoustic locking
ve rification signal must comply wi th there le‐
va nt national road and traf fic re gulations. In
some countries, including German y,using the
acoustic locking verification signal is forbid‐
den bytraf fic la ws(in accordance with §16
Pa ra. 1 and §30 Para. 1 of the German
national road traf fic re gulations). The driver
of theve hicle must comply with these regula‐
tions. In countries where the use of this func‐
tion is forbidden, this function is not activa‐
te d in theve hicle and must not be activated. Changing
the unlocking settings The
key has thefo llowing adjus table unlocking
functions:
R unlock cent rally
R unlock the driver's door #
Toswitch between settings: press and hold
th e0036 and0037 buttons at the same time
fo r appro ximately six seconds until the indica‐
to r lamp flashes twice. #
Tounlo cktheve hicle centrally when the
unlocking function is selected for the driv‐
er's door: pressthe0036 button a second
time. Re
moving and inse rting the emer gency key %
The anti-theft alarm sy
stem (A TA) is triggered
when you unlo ckand open theve hicle using
th e emer gency key (/ page67). #
Toremo ve:push release cat ch1 inthe
direction of the ar row and simultaneously pull
emer gency key2 comp lete ly out of thekey. #
Toinser t:push emer gency key2 com‐
ple tely in totheke y until it en gage s and
re lease cat ch1 is back in its initial position. Re
placing the key battery &
DANG ER Risk of fata l injuries due to
swallowing batteries
Batteries contain toxic and cor rosive subs tan‐
ces. Swallowing batteries may cause se vere
internal burns tooccur within two hours.
There is a risk of fata l injur y. #
Keep batteries out of there ach of chil‐
dren. #
Ifth e battery compartment does not
close securely, 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 immediately. +
ENVIRONMEN
TALNO TEEnvironmental
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
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries. Re
quirements
R yourequ ire a CR 2025 3 V cell battery
Changing the bat tery
Mercedes-Benz recommends that you ha vethe
battery changed at a qualified specialist work‐
shop. #
Remo vethe emer gency key ( / page 50). 50
Opening and closing

#
Press emer gency key2 into the opening in
th eke y in the direction of the ar row until bat‐
te ry compa rtment co ver1 opens. When
doing so, do not hold battery compartment
co ver1 shut. #
Tapth eke y again stthe 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 up wards. Use a
lint-free clo thtodo so. #
Fit battery compartment co ver1 tothekey
casing wi th the front lugs firs t and push it
closed. #
Slide emergency key2 back into thekey
( / page 50). Re
ctifying problems with thekey It is no longer possible
tolock theve hicle
using theke y.
Po ssible causes:
R The doors are not closed proper ly.
R The centra l locking sy stem has malfunc‐
tioned. #
Close the doors properly and lock theve hicle
again. #
Lock theve hicle using the emer gency key
( / page 50) or press down the locking pins
and then close the doors. #
Have the cent ral locking sy stem checked as
soon as possible at a qualified specialist
wo rkshop.
Yo u cann otlock or unlock theve hicle any‐
more.
Po ssible causes:
R The key bat tery iswe ak or dischar ged.
R The key is faulty. #
Check the battery using the indicator lamp
and replace the batter y,if necessary
(/ page 49). #
Use the emer gency key element tolock and
unlock theve hicle (/ page 50). #
Have theke ych ecked at a qualified specialist
wo rkshop.
The engine cannot be star ted using the key.
Po ssible causes:
R The on-board electrical sy stem voltage is too
lo w. #
Switch off non-essential consumers, such as
interior lighting, and try tostart the engine
again.
If th is does not work: #
Check thest ar ter battery and charge it, if
necessary (/ page 237).
or #
Jump-s tart theve hicle.
or #
Consult a qualified specialist workshop.
Yo u ha velost a key. #
Have theke y deacti vated at a qualified spe‐
cialist workshop. #
Report the loss immediately totheve hicle
insurers. #
If necessar y,ha ve the loc kschanged as well. Doors
Un
locking and opening the door from inside Door handle (e
xamp le: driver's door) #
Pull door handle 2.
Locking pin 1pops up when the door is
unloc ked. Opening and closing
51

#
Make sure that the positive term inal of
th e connected battery does not come
into contact with vehicle parts. #
Never place me tal objects or tools on a
batter y. #
The described order of the battery
clamps must be obser ved when con‐
necting and disconnecting the batter y. #
When giving starting assistance, alw ays
make sure that you on lyconnect battery
te rm inals with identical polarity. #
During starting assis tance, you must
obse rveth e described order for con‐
necting and disconnecting the jump
lead. #
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. &
WARNING Danger of chemical burns
from the battery acid
Battery acid is caustic. #
Avoid contact with the skin, eyes or
clo thing. #
Do not lean overth e batter y. #
Do not inhale battery gases. #
Keep children away from the batter y. #
Immedia tely rinse battery acid off thor‐
oughly with plenty of clean water and
seek medical attention immediately. *
NO
TEDama getoelectronic components
due towo rkcar ried out incor rectly on the
battery If
th est ar ter battery is disconnected before
th eke y is remo ved from the ignition loc k,
electronic components or assemblies, such
as the alternator, can be damaged. #
Switch off the engine and remo vethe
ke y from the ignition loc k. #
Check tosee that there are no indicator
lamps lit in the instrument clus ter. #
Alwaysre mo vethe negative term inal
clamp firs t and then the positive term i‐
nal clamp. #
Do not inter change the battery clamps. Alw
ays ha vewo rkon the battery car ried out at a
qu alified specialist workshop. If, in
exceptional circums tances, you must dis‐
connect the battery yourself, pay attention tothe
fo llowing:
R Obser vethe no tes on the12 V battery
(/ page 235).
R Secure theve hicle toprev ent it from rolling
aw ay.
R Afterth e battery has been disconnected, the
parking brake is automatically applied. Yo u
can then no longer mo vetheve hicle.
R Forve hicles with an automatic transmission,
th e transmission is loc ked in position 005Dafter
disconnecting the batter y.Yo u can then no
longer mo vetheve hicle.
R The battery and the co ver of the positive ter‐
minal clamp must be fitted securely du ring
ope ration. Seat base (e
xamp le:right-hand front seat)
The following description on connecting and fit‐
ting the battery uses theex ample of thest ar ter
battery in the seat base of theright-hand front
seat. #
Switch off all electrical consumers. #
Switch off the engine and remo vethekey
from the ignition loc k. #
Open the front right-hand door. #
Press bo thcatch springs 1down and
re mo vecover2 upwards from the seat
base. #
Remo vecover2 bypulling upwards at an
angle from the seat base. 240
Breakdown assis tance

Display messages
Possible causes/consequences and 0050 0050Solutions #
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitoring sy stem will switch on af ter a few
minutes of driving.
Tyre pressure monitor
inoperative *T
he tyre pressure monitoring sy stem is malfunctioning. #
Consult a qualified specialist workshop. Key
Display messages
Possible causes/consequences and 0050 0050Solutions
00AF
Key does not belong to
vehicle *Y
ou ha veinser ted an incor rect key into the ignition loc k. #
Use the cor rect key.
00AF
Remove key *T
hekey is in the ignition loc k. #
Remo vethekey.
00AF Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
00AF
Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page 50). Ve
hicle Display messages
Possible causes/consequences and 0050 0050Solutions
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 ten‐
ded di stances. #
Stop in accordance with the tra ffic 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 veyour foot from the clutch pedal and do not let the clutch
slip.
The clutch may also cool down during driving. 298
Display messages and warning and indicator lamps