2021 MERCEDES-BENZ V-CLASS heater

R
ifth eve hicle is switched on
R when the hot-water auxiliary heater is switched
on Oper
Oper ating air v
ating air v ents
ents A
A
djus
djusting t ting t he air v
he air v ents
ents &
W
WARNING
ARNING Risk of burns or frostbite due to
being too close tothe air vents
Ve ry hot or very cold air can 0ow from the air
ve nts. #
Make sure that all vehicle occupants
alw ays maintain a su1cient dis tance
from the air vents. #
If necessar y,direct the air0ow toano ther
area of theve hicle interior. A
A
djus
djusting t ting t he centr
he centr e air v
e air vents
ents #
T
T o open/close:
o open/close: turn controller 3or4 tothe
leT or right as far as it will go. #
T
T o adjus
o adjust t t the
he air0ow
air0ow dir
dir ection:
ection: hold centre air
ve nt 1 or2 bycont roller 3or4 and
mo veit up or down or tothe leT or right.
A
A djus
djusting t ting t he side air v
he side air v ents:
ents: #
T
T o open/close:
o open/close: turn controller 2clockwise or
anti-clockwise as far as it will go. #
T
T o adjus
o adjust t t the
he air0ow
air0ow dir
dir ection:
ection: hold side air
ve nt 1 bycont roller 2and mo veit up or
down or tothe leT or right. Opening/closing t
Opening/closing t he r
he rear air v
ear air v ents:
ents: 1
Adjustment wheel forve rtically adjusting and
re gulating air0 ow
2 Adjustment wheel for horizontally adjusting
air0ow
The air vents can be adjusted only on vehicles with
re ar-compartment air conditioning. #
T
To open:
o open: turn adjustment wheel 1ofthere ar
air vent tothe centre position. #
T
To close:
o close: turn adjustment wheel 1tothe
upper or lo wer end position. A
A
uxiliar
uxiliar y heating
y heating Inf
Inf
or
ormation about auxiliar
mation about auxiliar y heating
y heating &
D
DAN
AN GER
GER Risk of fata l injury due topoison-
ous exhaust gases
If th eta ilpipe is bloc ked or su1cient ventilation
is not possible, poisonous exhaust gases such
as carbon monoxide may enter theve hicle.
This is the case in enclosed spaces or if the
ve hicle gets stuck in sno w,forex ample. #
Always switch the stationary heater o. in
enclosed spaces without an air extrac-
tion system, e.g. in garage s. #
Keep theta ilpipe and the area around the
ve hicle free from snow when theve hicle
or the stationary heater is running. #
Open a wind owonthe side of theve hicle
fa cing away from the wind toensure an
adequate supply of fresh air. &
W
WARNING
ARNING Risk of /re due tohot stationary
heater components and exhaust gases
Flammable materials such as lea ves, grass or
twigs may ignite. #
When the stationary heater is switched
on, make sure that: Climate cont
rol
129
129

R
hot vehicle parts do not come into
contact with 0ammable materials.
R theex haust gas can 0ow out of the
stationa ryheater exhaust pipe unhin-
dered.
R theex haust gas does not come into
contact with 0ammable materials. The heater
forth e auxiliary heating is /t tedatthe
front of theve hicle underbod y.The emissions out-
let is on the leT side of theve hicle below the front
door. &
W
WARNING
ARNING Risk of poisoning during work
on the auxiliary warm-air hea ter
If wo rkon the heat exch anger of the auxiliary
wa rm-air hea ter is not per form ed cor rectl y,
ex haust fumes could leak into the passenger
compartment. #
Have all workon the auxiliary warm-air
hea ter car ried out at a quali/ed specialist
wo rkshop. If
yo u are transporting hazardous materials, com-
ply with there leva nt sa fety regulations. Place
objects a su1cient distance from the auxiliary
heating outlet opening.
* N
NO OTE
TE Damage tothe auxiliary heating due
to ove rheating If
th e 0ow of hot air is bloc ked, the auxiliary
heating may overheat and switch o.. #
Do not block the 0ow of hot air. *
N
NOOTE
TE Battery dischar gecaused bystation-
ary heater or stationa ryventilation ope ra-
tion Operating
the stationary heater or stationary
ve ntilation drains the batter y. #
ATer heating or ventilating theve hicle
twice, drive for a longer period of time. Yo
ur vehicle may be equipped with either a hot-
wa ter auxiliary heater or an auxiliary warm-air
hea ter.
The ho hot-w
t-w at
ater auxiliar
er auxiliar y heat
y heat er
eris adjusted and
ope rated using the& rock er switch on the cli-
mate control system operating unit and via the
multimedia system or byremo tecont rol. The auxiliar
auxiliar y w
y war
arm-air heat
m-air heat er
eris adjusted and oper-
ated via the switch clock on the lo wer centre con-
sole. Ho
Ho
t-w
t-w at
ater auxiliar
er auxiliar y heat
y heat er
er F
F
unction of t
unction of t he ho
he hot-w
t-wat
ater auxiliar
er auxiliar y heat
y heater
er
Obser vethe no tes on auxiliary heating
(/ page 129).
The hot-water auxiliary heater has a heater boos-
te r,stationary heater and stationary ventilation
function.
The stationary hea ter automatically adapts its
operating mode tochanges in outside temp erature
and weather conditions. It is therefore possible
th at the stationary heater may switch from ventila-
tion toheating mode or from heating toventilation
mode.
The stationary hea ter will automatically switch
itself o. aTer a maximum of 50 minutes. The
heater booster function helps toheat up theve hi-
cle while the engine is running and at low outside
te mp eratures.
Yo u can set up tothre e departure times for pre-
entry climate control byremo tecont rol or via the
multimedia system. The switch-on time is then cal-
culated based on the outside temp erature and the
activated departure time. This means that your
ve hicle is preheated or precooled bythe set depar-
ture time.
If th e departure time is reached and theve hicle is
not star ted, the auxiliary heating will continue to
ru nfo r appr oximately /ve more minutes. It will
th en switch o. automaticall y.
When the auxiliary heating is heating and theve hi-
cle is star ted, the heater booster function of the
auxiliary heating will be activated.
When the auxiliary heating is ventilating and the
ve hicle is star ted, the auxiliary heating will be auto-
matically switched o.. 130 130
Climate control

Switc
Switc
hing t
hing t he ho
he hot-w
t-wat
ater auxiliar
er auxiliar y heat
y heater
er on/o.
on/o.
wit
with t h the butt
he butt on
on
R
R eq
equir uir ements:
ements:
R The fuel tank is /lled abo vethere ser veleve l. The coloured indicator lamps abo
vethe&
ro ck er switch ha vethefo llowing meanings:
R Blue – stationary ventilation is switched on
R Red – the stationary heater is switched on
R Yellow – a departure time is preselected #
T
To switc
o switc h on:
h on:press theto p or bottom section
of rock er switch 1.
The red or blue indicator lamp abo verock er
switch 1will light up.
The multimedia system will be activated for
appr oximately one minute. #
Set the desired temp erature via the multimedia
system. #
T
To switc
o switc h
ho.:
o.: press theto p or bottom section
of rock er switch 1again.
The red or blue indicator lamp abo verock er
switch 1will go out. A
A
djus
djusting t ting t he ho
he ho t-w
t-wat
ater auxiliar
er auxiliar y heat
y heater b
er by r
y remo te
emo te
contr
contr ol
ol
R
R eq
eq uir
uir ements:
ements:
R The fuel tank is /lled abo vethere ser veleve l.
Switc
Switc hing on immediat
hing on immediat ely
ely #
Press and hold theu button until theON
message appears on there mo tecont rol's dis-
pla y.
Se
Se tting t
tting t he depar
he depar tur
ture time
e time #
Brie0y press the u button. #
Continue topress the, or. button
until the time tobe changed appears on the
displa y. #
Press theu and^ buttons simultane-
ousl y.
The Îsymbol on there mo tecont rol display
will 0ash. #
Set there qu ired departure time with the,
and . buttons. #
Press theu and^ buttons simultane-
ousl y.
The new departure time will be sa ved.
Up tothre e departure times can be sa ved. #
T To activ o activ at
ate t
e t he depar
he depar tur
tur e time:
e time: brie0y press
th eu button. #
Select there qu ired departure time with
th e, and. buttons. #
Press and hold the u button.
The Ísymbol, the departure time and,
depending on the selected departure time, let-
te r AA, B Bor C Cwill appear on there mo tecon-
trol's displa y. Climate control
131
131

R
R
ectifying pr
ectifying pr oblems wit
oblems with t
h the ho
he ho t-w
t-wat
ater auxiliary
er auxiliary
heat
heat er
er
F
F AIL
AIL ¨
¨appear
appear s on t
s on the r
he remot
emot e contr
e contr ol display
ol display
Po ssible cause:
R Signal transmission between transmit ter and
re ceiver is malfunctioning. #
Change your position in relation totheve hicle,
moving closer if necessar y.
F
F AIL appear
AIL appear s on t
s on the r
he remot
emot e contr
e contr ol display
ol display
Po ssible cause:
R The star ter battery is not su1ciently charge d. #
Char gethe star ter batter y.
Po ssible cause:
R The fuel tank is not /lled up tothere ser ve
le ve l. #
Refuel at the nearest /lling station.
F
F AIL appear
AIL appear s on t
s on the r
he remot
emot e contr
e contr ol displa
ol displa y
y¯
¯
Po ssible cause:
R The auxiliary heating has malfunctioned. #
Have the auxiliary heating checked at a quali-
/ed specialist workshop. A
A
uxiliar
uxiliar y w
y war
arm-air heat
m-air heat er
er F
F
unction of t
unction of t he auxiliar
he auxiliary w
y w ar
arm-air heat
m-air heat er
er
Obser vethe no tes on auxiliary heating
(/ page 129).
The air-in take opening forth e auxiliary warm-air
hea ter is located on the inner side of the leT front
seat base. The warm-air outlet is on there ar side
of the leT front seat.
The auxiliary warm-air hea ter supplements the cli-
mate control system of your vehicle and has an
auxiliary heating function.
The stationary heater will switch o. automatically
when theve hicle is switched o. or when the set
heating duration has elapsed.
The immediate heating mode of the auxiliary heat-
ing supports the climate control system when the
engine is running and the outside temp erature is
lo w.
The switch clo ckforth e auxiliary warm-air hea ter
is located in the lo wer centre console.
Yo u can use the switch clock toset up tothree
departure times for pre-entry climate control. Switc
Switc h cloc h cloc kov
k over ervie
vie w (auxiliar
w (auxiliar y w
y war
arm-air heat
m-air heat er)
er) 1
Select option / change values
2 Menu bar
3 Select option
4 Pressing brie0y :con/rms a selection or set-
ting
Pressing and holding: switches immediate
heating mode on/o.
5 Status bar
6 Pressing brie0y: switches switch clock on /
cancels or term inates the settings in a menu
Pressing and holding: term inates all functions
Switc
Switc hing t hing t he switc
he switc h cloc
h clock on (auxiliar
k on (auxiliar y w
y war
arm-air
m-air
heat
heat er)
er) #
Press button 6.
% The switch clock will switch tostandby mode
aTer ten seconds. The display will go o..
Se
Se tting t
tting t he switc
he switc h cloc
h clock (auxiliar
k (auxiliar y w
y war
arm-air heat
m-air heat er)
er)
Se
Se tting t
tting t he time
he time
Yo u must reset the da y,time and default value for
th e operating duration in thefo llowing cases:
R initial operation
R aTer a voltage supply inter ruption (e.g.if the
battery has been disconnected)
R aTer a malfunction #
Press button 1or3 until 4 0ashes on
menu bar 2. #
Press button 4. #
Press button 1or3 until Î0ashes. #
Press button 4. #
Use button 1or3 toset the hours. Climate control
133
133

A
A
uxiliar
uxiliar y heating aut
y heating aut omaticall
omatically switc
y switches
heso.
o.and/or
and/or
canno
canno t be switc
t be switc hed on.
hed on.
Po ssible cause:
R The under voltage pr otection system integ rated
in the control unit switches auxiliary heating o.
as the on-board electrical system voltage is
below 10 V. #
Have thege nerator and the battery checked.
Po ssible cause:
R The elect rical fuse has blown. #
Replace the electrical fuse; see "Fuse assign-
ment" supplement. #
Have the cause of thefa ulty fuse in vestigated
at a quali/ed specialist workshop.
The ho
The ho t-air auxiliar
t-air auxiliar y heat
y heater has ov
er has overerheat
heat ed
ed
Po ssible cause:
R The air ducts are clogged. #
Ensure that the 0ow of hot air is not bloc ked. #
Have the auxiliary heating checked at a quali-
/ed specialist workshop. Climate cont
rol
135
135

Dr
Dr
iving
iving K
K
e
ey positions
y positions &
W
WARNING
ARNING Risk of accident and injury due
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. &
D
DAN
AN GER
GER Risk of fata l injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling these
ex haust gases is hazardous tohealth and leads
to poisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of /re due to0ammable
material in the engine compartment or the
ex haust system
Flammable materials may ignite. #
Therefore, check regular lythat there are
no 0ammable materials in the engine
compartment or on theex haust system. g
Inserting/ removing thekey
1 Switching on the po wer supply
2 Switching on vehicle
3 Starting theve hicle
% Ifth eke y does not belong totheve hicle, it can
still be turned in the ignition loc k.The vehicle
is not switched on and cann otbe star ted. #
Insert theke y in tothe ignition lock in position
g and turn it tothe desired position. R
R
unning-in not
unning-in not es
es Pr
otect the engine during the /rst 1,500 km by:
R driving at varying road and engine speeds.
R shiTing tothe next highest gear at theve ry lat-
est when the needle reaches the last third
before there d area in there v counter.
R avoiding stress on theve hicle such as driving
at full thro ttle.
R not shiTing manually toa lo werge ar to brake.
R aTer 1,500 km, gradually increasing the engine
speed and accelerating theve hicle up tofull
speed.
R v
vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: not
dep ressing the accelerator pedal be yond the
pressure point (kickdown).
This also applies if the engine or parts of the drive-
train ha vebeen replaced.
Also obser vethefo llowing running-in no tes:
R ATer theve hicle has been deli vered or aTer
re pairs, the sensor system of some driving sys-
te ms and driving saf ety systems adjusts itself
automatically aTer theve hicle has been driven
a cer tain distance. Full system e.ectiveness is
not reached until the end of this teach-in proc-
ess.
R New or exch anged brakepads, brake discs and
tyres only pr ovide optimal braking and bonding
aTer se veral hundred kilometres. Until then, 136
136
Driving and parking

compensate
forth ere duced braking e.ect by
applying greater pressure tothe brake pedal. Dr
Dr
iving tips
iving tips N
No
ot
tes on dr
es on dr iving
iving &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Ensure 0oor mats and carpets cannot
slip and pr ovide su1cient room forthe
pedals. #
Do not lay multiple 0oor mats or carpets
on top of one ano ther. &
W
WARNING
ARNING Risk of accident due toincor-
re ct foot we ar
Incor rect foot we ar includes, forex ample:
R shoes with platform soles
R shoes with high heels
R slippers
There is a risk of an accident. #
Alwayswe ar suitable foot we ar so that
yo u can operate the pedals safel y. &
W
WARNI NG
ARNI NGRisk of accident when vehicle is
switched o. due tostee ring wheel locking
If yo u switch o. theve hicle while it is station-
ar y, yo u can no longer steer theve hicle. #
Before theve hicle begins toroll, switch
on theve hicle todeactivate steering
wheel locking. &
W
WARNING
ARNING Risk of accident if theve hicle is
switched o. while driving
If yo u switch o. theve hicle while driving,
saf ety functions are restric ted or no longer
av ailable.
This may a.ect the po wer steering system and
th e brake forc e boosting, forex ample. Yo
u will need touse considerably more force
to steer and brake, forex ample. #
Do not switch o. theve hicle while driv-
ing. &
D
DAN
AN GER
GER Risk of fata l injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling these
ex haust gases is hazardous tohealth and leads
to poisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of skidding and of an acci-
dent due toshiTing down on slippe ryroad
sur faces
If yo u shiT down on slippery road sur faces to
increase the engine braking e.ect, the drive
wheels may lose traction. #
Do not shiT down on slippery road sur fa-
ces toincrease the engine braking
e.ect. &
D
DAN
AN GER
GER Risk of fata l injury due topoison-
ous exhaust gases
If th eta ilpipe is bloc ked or su1cient ventilation
is not possible, poisonous exhaust gases such
as carbon monoxide may enter theve hicle.
This is the case if theve hicle gets stuck in
sno w,forex ample. #
Keep theta ilpipe and the area around the
ve hicle free from snow when theve hicle
or the stationary heater is running. #
Open a wind owonthe side of theve hicle
fa cing away from the wind toensure an
adequate supply of fresh air. *
N
NOOTE
TE Damage tothe driv etra in and engine
when pulling away #
Do not warm upthe engine while the
ve hicle is stationar y.Pull away immedi-
atel y. #
Avoid high engine speeds and driving at
full thro ttle until the engine has reached
its operating temp erature. Driving and parking
137
137

drive at speed,
theve hicle is lo wered automatically
to impr ovedriving saf ety and toreduce fuel con-
sum ption. There is also the option of raising the
ve hicle le vel while driving slo wly, e.g. for driving o.
public roads. The AIRMATIC settings are depend-
ent on the drive prog ram selection.
AIRM ATIC consists of thefo llowing functions and
components:
R all-round air suspension
R speed-dependent lo wering toreduce fuel con-
sum ption
R high le velfo rgr eater ground clearance when
driving slo wly,fo rex ample o. public roads, set
with the LiTLiT F/¦ drive program
R DYNAMIC SELECT switch
% Forth e LiTLiT drive prog ram, the inst rument clus-
te r sho ws th eF symbol next tothe trans-
mission position displa y.The media display
sh ow sth e¦ menu.
V
V ehicle lev
ehicle lev els per dr
els per dr iv
ive pr
e pr ogr
ogram
am
Drive prog rams A and¥:
R theve hicle is set tonormal le vel
R at speeds abo veappr ox. 110 km/h, theve hi-
cle is lo wered
R at speeds below appr ox. 75 km/h, theve hicle
is raised again
Drive prog ram C:
R theve hicle is set tolow le vel
R at higher speeds, theve hicle le vel does not
continue tolower
Drive prog ram F/¦:
R theve hicle is set tohigh le vel
R at speeds abo veappr ox. 30 km/h, theve hicle
le ve l lo wersto the normal le vel
R at speeds below appr ox. 10 km/h, theve hicle
is raised again
R at speeds abo veappr ox. 100 km/h, theve hi-
cle switches todrive prog ram A
% Ifth eve hicle is raised in the LiTLiT drive prog ram
or lo wered when changing from the LiTLiT drive
prog ram to ano ther drive prog ram, occasional
creaking noises may occur at the brake.
% Oper
Oper ation wit
ation wit h a tr
h a trailer or bicy
ailer or bicy cle r
cle rac
ack:
k: ifthe
electrical connection has been cor rectly
es tablished, theve hicle remains on normal
le ve lre ga rdless of speed. Syst
Syst em limits
em limits
If ove rheating pr otection has been activated due to
se veral le velch anges in a short period of time,
AIRMATIC will not function or its availability will be
limi ted. The Compressor is cooling message is
shown in the multifunction displa y.
ATer the cooling phase, AIRMATIC is again availa-
ble without restrictions. R
R
efuelling
efuelling R
R
efuelling t
efuelling t he v
he vehicle
ehicle &
W
WARNING
ARNING Risk of/re orexplosion from
fuel
Fu els are highly 0ammable. #
Fire, naked 0ames, smoking and creating
spar ksmust be avoided. #
Before refuelling, switch o. theve hicle
and, if /tted, the stationary heater and
ke ep switched o. during /lling. &
W
WARNING
ARNING Risk of injury from fuels
Fu els are poisonous and hazardous toyour
health. #
Do not swallow fuel or let it come into
contact with skin, eyes or clo thing. #
Do not inhale fuel vapour. #
Keep children away from fuel. #
Keep doors and windo wsclosed during
th ere fuelling process.
If yo u or other people come into contact with
fuel, obser vethefo llowing: #
Immediate lyrinse fuel o. your skin with
soap and water. #
If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical at tention
immedia tely. #
Ifyo u swallow fuel, seek medical atten-
tion immediatel y.Do not induce vomiting. #
Change immediately out of clo thing that
has come into contact with fuel. &
W
WARNING
ARNING Risk of /re and explosion due to
electrostatic charge
Electrostatic charge can ignite fuel vapour. 146
146
Driving and parking