steering MERCEDES-BENZ V-CLASS 2021 Service Manual

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Remo ve yo urfoot from the accelerator pedal. The limiter will be
re activated and will limit your speed.
Cruise control - - - km/h *An activation condition for cruise control has not been met.
Fo rex ample, you are aiming tostore a speed below 30 km/h. #
If conditions pe rmit, drive at a speed greater than 30 km/h and
store the speed. #
Obser vethe activation conditions for cruise control
(/ page 158).
Cruise control and Lim-
iter inoperative *A
warning tone also sounds. Cruise control and the limiter are mal-
functioning. #
Consult a quali/ed specialist workshop.
Blind Spot Assist not
available when towing a
trailer See Owner's Man-
ual *B
lind Spot Assist is switched o. during trailer operation. #
Ackno wledge the display message with thea steering wheel
button.
Blind Spot Assist inoper-
ative *B
lind Spot Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Blind Spot Assist cur-
rently unavailable See
Owner's Manual *B
lind Spot Assist is temp orarily non-operational.
The following causes are possible:
R The function is impaired due toheavy rain or sno w.
R The radar sensor system is temp orarily non-operational, e.g. due
to electromagnetic radiation close toTV orradio transmitting sta-
tions or other sources of radiation.
R The system is outside the operating temp erature range.
If th e causes mentioned abo veno longer app ly,th e display message
will disappear and Lane Keeping Assist will be operational again.
If th e display message does not disappear: #
Stop in accordance with the tra1c conditions. #
Secure theve hicle against rolling away. #
Switch o. theve hicle. #
Restart theve hicle.
à --- km/h *D
SR has been switched on but is not active as you are driving at a
speed greater than 18 km/h. If you drive at a speed below 18 km/h,
DSR will automatically brake again tothe set speed.
Ã
Off *D
SRwas deacti vated.
If it was not deacti vatedby the driver, e.g. due toa malfunction of the
ESP ®
, a warning tone also sounds. 292 292
Display messa
ges and warning and indicator lamps

Displa
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ossible causes/consequences and uences andM
MSolutions
Solutions
à inoperative *A
warning tone also sounds. DSR is una vailable due toa malfunction. #
Consult a quali/ed specialist workshop.
Active Parking Assist
cancelled *A
n acoustic signal sounds as well. The active parking assistance sys-
te ms ha vebeen cancelled and Active Parking Assist will automatically
be abor ted. You ha vetouched the steering wheel, forex ample, or
ha ve driven at too high a speed. #
Steer and brake manuall y. #
Repeat the parking procedure if necessar y.Comply with the deac-
tivation conditions (/ page 170).
Active Parking Assist
inoperative *P
ARKTRONIC is malfunctioning or defecti ve. #
Comply with the inst ructions and aids in "Function of
PA RKTRONIC"(/ page 165). #
Ifth e display message continues tobe displa yed, consult a quali-
/ed specialist workshop:
*A ctive Parking Assist is not available or is malfunctioning. #
Switch o. theve hicle, wait a short while, then switch it on again.
If th e display message continues tobe displa yed, or if the display does
not show thej symbol: #
Consult a quali/ed specialist workshop.
Lane Keeping Assist
inoperative *L
ane Keeping Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Lane Keeping Assist cur-
rently unavailable See
Owner's Manual *L
ane Keeping Assist has been switched o. and is temp orarily non-
operational.
The following causes are possible:
R The windscreen is dirty in the camera's /eld of vision.
R Visibility is impaired due toheavy rain, snow or fog.
R Lane markings are absent for a long period of time.
R The lane markings are worn, dark or co veredby dirt or sno w,for
ex ample.
If th e causes mentioned abo veno longer app ly,th e display message
will disappear and Lane Keeping Assist will be operational again.
If th e display message does not disappear: #
Stop in accordance with the tra1c conditions. #
Secure theve hicle against rolling away. #
Clean the windscreen.
Traffic Sign Assist inoper-
ative *
Tra1c Sign Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Traffic Sign Assist cur-
rently unavailable See
Owner's Manual *
Tra1c Sign Assist has been switched o. and is temp orarily non-
operational. Display messages and
warning and indicator lamps
293 293

Displa
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ossible causes/consequences and uences andM
MSolutions
Solutions
¯ AdBlue system Malfunc-
tion See Owner's Manual *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning. #
Consult a quali/ed specialist workshop immediatel y.
¯ AdBlue malfunction
Emer. oper. in XXX km
See Owner's Manual *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
The displa yed distance is the maximum you can drive. If you subse-
qu ently start the engine again, you will be able todrive theve hicle
only at a maximum speed of 20 km/h forth e distance shown. ATer
th at, the engine management system will pr eventthe engine from
being star ted again. #
Consult a quali/ed specialist workshop immediatel y.
¯ Limp-home mode: 20
km/h No start ... km
See Owner's Manual. *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
Yo u may continue todrive the displa yed distance at a maximum speed
of 20 km/h. If you subsequently switch o. the engine, the engine
management system will pr event the engine from being star ted again. #
Drive on toaqu ali/ed specialist workshop.
or #
Stop theve hicle in accordance with the tra1c conditions and con-
sult a quali/ed specialist workshop.
¯
Refill AdBlue Start not
possible *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
Yo u can no longer start the engine. #
Inform a quali/ed specialist workshop immediatel y. T T
yr
yr es
es Displa
Displa y messag
y messag es P
es P ossible causes/conseq
ossible causes/conseq uences and
uences andM
M Solutions
Solutions
Rectify tyre pressure *The tyre pressure is too low in at least one of the tyres, or the di.er-
ence in tyre pressure between the individual wheels is toogr eat. #
Check the tyre pressure at the next opportunity (/ page 258). #
Correct the tyre pressure as necessar y. #
Restart the tyre pressure monitoring system (/ page 258).
Check tyre(s) *Awarning tone also sounds.
The tyre pressure in one or more tyres has dropped signi/cantl y.&
W
WARNI NG
ARNI NGRisk of an accident due toinsu1cient tyre pres-
sure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking
may be greatly impaired. 298
298
Display messages and
warning and indicator lamps

Displa
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es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle without steering or braking sudden ly.Pa y atten-
tion tothe tra1c conditions. #
Secure theve hicle against rolling away. #
Check the tyres. If necessar y,replace the wheel (/ page 261). #
Check the tyre pressure (/ page 258). Correct the tyre pressure
as necessar y.
Warning tyre defect *The tyre pressure in one or more tyres has dropped sudden ly.&
W
WARNI NG
ARNI NGRisk of an accident from driving with a 0at tyre
R The tyres can overheat and cause a /re.
R The driving characteristics as well as the steering and braking
may be greatly impaired.
Yo u could then lose control of theve hicle. #
Do not drive on with a 0at tyre. #
Obser vethe no tes on 0at tyres. #
Stop theve hicle without steering or braking sudden ly.Pa y atten-
tion tothe tra1c conditions. #
Secure theve hicle against rolling away. #
Check the tyres. If necessar y,replace the wheel (/ page 261).
Tyre press. monitor cur-
rently unavailable *D
uetoa source of radio inter fere nce, no signals from the tyre pres-
sure sensors are being received. The tyre pressure monitoring system
is temp orarily malfunctioning.
The tyre pressure monitoring system will restart au tomatically as soon
as the cause has been recti/ed.
Wheel sensor(s) missing *There is no signal from the tyre pressure sensor of at least one tyre.
The display is not showing any pressure value forth e tyre in question. #
Have thefa ulty tyre pressure sensor replaced at a quali/ed spe-
cialist workshop.
Tyre pressure monitor
inoperative No wheel
sensors *T
he wheels /tted do not ha vesuitable tyre pressure sensors. The tyre
pressure moni toring system is deactivated. #
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitoring system will switch on aTer a few
minutes of driving.
Tyre pressure monitor
inoperative *T
he tyre pressure moni toring system is malfunctioning. #
Consult a quali/ed specialist workshop. Display messages and
warning and indicator lamps
299
299

Displa
Displa
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ossible causes/consequences and uences andM
MSolutions
Solutions
Ó *A
warning tone also sounds. The bonnet is open. &
W
WARNI NG
ARNI NGRisk of accident due todriving with the bonnet
unloc ked
The bonnet may open and blo ckyour vie w. #
Neverre lease the bonnet when driving. #
Before every trip, ensure that the engine bonnet is loc ked. #
Stop theve hicle immediately in accordance with the tra1c condi-
tions. #
Secure theve hicle against rolling away. #
Close the bonnet.
C *I
n addition, a warning tone sounds during the trip.
The display sho ws the open door or doors. #
Close all the doors.
¥
Top up washer fluid *T
hewasher 0uid le vel in thewa sher 0uid reser voir has dropped below
th e minimum. #
Top up thewa sher 0uid (/ page 229).
Ð Power steering malfunc-
tion See Owner's Manual *A
warning tone also sounds. The po wer assistance forth e steering
could be malfunctioning. You may need tosteer mo reforc efull y. #
Carefully continue toaqu ali/ed specialist workshop and ha vethe
stee ring checked immediatel y.
Telephone No service *Your vehicle is outside the transmission and receiver range of the
mobile phone network pr ovider.
To start engine, shift to
either P or N *Y
ou ha veattem pted tostart theve hicle in transmission position kor
h. #
ShiT the transmission toposition jori.
Auxiliary battery malfunc-
tion *T
he auxiliary battery forth e transmission is no longer being charge d. #
Consult a quali/ed specialist workshop.
Apply brake to deselect
Park (P) position *Y
ou ha vetried toshiT the transmission toposition h,kori with-
out applying the brake. #
Depress the brake pedal.
Apply brake to select R *You ha vetried toshiT the transmission toposition kwithout appl y-
ing the brake. #
Depress the brake pedal. #
ShiT the transmission position tok .
N permanently active
Risk of vehicle rolling *A
warning tone also sounds. While theve hicle is rolling or driving, the
transmission was shiTed toposition i. #
Tostop, depress the brake pedal and, when theve hicle is at a
standstill, shiT the transmission toposition j. Display messages and
warning and indicator lamps
301 301

V
V
ehicle
ehicle W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ð Po we r steering system
wa rning lamp *The
red po wer steering warning lamp is on while theve hicle is on. A
wa rning tone also sounds.
The po wer assistance forth e steering could be malfunctioning. You may
need tosteer mo reforc efull y. #
Carefully continue toaqu ali/ed specialist workshop and ha vethe
stee ring checked immediatel y. Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
; Engine diagnostics warn-
ing lamp *The
yellow engine diagnostics warning lamp is on while theve hicle is
on.
There may be a malfunction in thefo llowing vehicle systems:
R Engine management
R Injection
R Exhaust system
R Ignition system (in vehicles with a petrol engine)
R Fuel system
This can cause the emissions limit values tobe exceeded and the
engine torun in eme rgency mode. #
Have theve hicle checked immediately at a quali/ed specialist work-
shop.
6
Fu elreser vewarning lamp *T
he yellow fuel reser vewarning lamp is on while theve hicle is on.
The fuel supply has dropped into there ser verange.
Ope ration of the auxiliary heating (stationary heater) is deactivated in
th ere ser verange. #
Refuel theve hicle.
?
Coolant warning lamp *The
red coolant warning lamp is on while theve hicle is running and the
coolant temp erature display is at the start of the scale.
The temp erature sensor forth e coolant temp erature display is defec-
tive.
The coolant temp erature is no longer being monitored. If the coolant is
to o hot, the engine may be damaged. #
Stop theve hicle immediately in accordance with the tra1c condi-
tions and switch it o.. Do not continue driving! #
Secure theve hicle against rolling away. #
Consult a quali/ed specialist workshop.
? Coolant warning lamp *T
he red coolant warning lamp is on while theve hicle is on.
The coolant le vel is too lo w.
If th e coolant le vel is cor rect, the air supply tothera diator may be
impaired or thera diator's electric fan may be faulty.
The coolant is too hot and the engine is not being adequately cooled. #
Pay attention tothe display messages. Display messages and
warning and indicator lamps
309 309

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Monitor the coolant temp erature display on the inst rument cluster. #
Ifth e coolant temp erature is below 120°C, you can continue driving
to the nearest quali/ed specialist workshop. #
In doing so, avoid high engine loads, e.g. driving in mountainous ter-
ra in or stop-and-go driving. T
T
yr
yr es
es W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
h Ty re pressure monitoring
system warning lamp *The
yellow tyre pressure monitoring system warning lamp (pressure
loss/malfunction) is on.
The tyre pressure monitoring system has de tected a loss of pressure in
at least one tyre. &
W
WARNING
ARNING Risk of an accident due toinsu1cient tyre pressure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking
may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle without steering or braking sudden ly.Pa y attention
to the tra1c conditions. #
Secure theve hicle against rolling away. #
Pay attention tothe display messages. #
Check the tyres and, if necessar y,replace the wheel (/ page 261). #
Check the tyre pressure.
In vehicles with steering-wheel buttons, you can check the tyre pressure
electronically (/ page 258). #
Correct the tyre pressure as necessar y.
h Ty re pressure monitoring
system warning lamp *The
yellow tyre pressure monitoring system warning lamp (pressure
loss/malfunction) 0ashes for appr oximately one minute and then
re mains lit.
The tyre pressure monitoring system is malfunctioning. &
W
WARNING
ARNING There is a risk of an accident if the tyre pressure
monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there
is pressure loss in one or more of the tyres.
Ty res with insu1cient tyre pressure may impair the driving charac-
te ristics as well as steering and braking. #
Have the tyre pressure monitoring system checked at a quali-
/ed specialist workshop. Display messages and
warning and indicator lamps
311
311

Seat belt
Seat belt
Activating/deactivating seat belt
adjustment........................................... 32
Ad justing the height.............................. 32
Care...................................................2 33
Fa stening.............................................. 32
Pro tection............................................. 30
Pr otection impaired............................... 31
Re leasing.............................................. 32
Seat belt adjustment (function).............32
Wa rning lamps...................................... 32
Seat belt adjus
Seat belt adjustment tment
Ac tivating/deactivating......................... 32
Fu nction............................................... 32
Seat belt t Seat belt t ensioners
ensioners
Ac tivation............................................. 29
Seat cov
Seat cov er (car
er (care)
e)....................................... 233
Seat v
Seat v entilation
entilation
Switching on/o.................................... 97
Seat/bunk combination
Seat/bunk combination Fitting/removing st owage compart-
ment.................................................. .100
Fo lding up the bed extension................. 91
Installing and removing......................... 93
Ins talling/removing bed extension........ 91
Moving................................................. 91
No tes................................................... .90
Setting up/folding awayth e ber th......... 91
Seats
Seats
4-waylumbar suppor t........................... 75
Ad justing (electrically)........................... 73
Ad justing (manual ly).............................. 71
Ad justing armrests................................ 76
Ad justing the head restraint electri-
cally...................................................... 95
Ad justing the head restraints
me chanical ly......................................... 94
Installing and removing rear ben ch
seat...................................................... 82
Operating the memory function............. 75
Ro tating (front seats)............................ 76
Setting options..................................... 14
Secur
Secur ing lugg ing lugg age
age...................................... 214
Selecting a g
Selecting a g ear
ear
see ShiTing
Select
Select or lev
or lever
er
see DIRECT SELECT le ver
Self-t
Self-t est
est
Au tomatic co-driver airbag shuto......... .36
Sensor
Sensor s (car
s (care)
e)......................................... .232 Ser
Ser
vice
vice
see ASS YST PLUS service inter val display
Ser
Ser vice (on-boar
vice (on-boar d com
d comput
puter)
er)..................... 184
Ser
Ser vice Centre
vice Centre
see Quali/ed specialist workshop
Ser
Ser vice pr
vice pr oducts
oducts
Re frigerant (air conditioning)............... 278
Se
Se tting a speed limit
tting a speed limit
see Limiter
Se Se tting t tting t he
heair0 ow
air0ow..................................... 126
Se
Se tting t
tting t he map scale
he map scale
see Map
Se
Se tting t
tting t he speed
he speed
see Cruise cont rol
Se
Se ttings (on-boar
ttings (on-boar d com
d comput
puter)
er).................... 189
ShiT
ShiT paddles
paddles
see Steering wheel gearshiT paddles
ShiTing
ShiTing GearshiT recommendation (manual
shiTing, automatic transmission)......... 144
GearshiT recommendation (manual
transmission)...................................... 141
Shor
Shor t-dist
t-dist ance tr
ance tr ips
ips................................. .138
Sho
Sho wing t
wing t he r
he range
ange....................................1 84
Side airbag
Side airbag.................................................. 33
Side window Side window Closing using theke y............................ 64
Co nve nience closing............................. 64
Con venience opening............................ 64
Opening with theke y............................. 64
Problems.............................................. 65
Side windo ws
Side windo ws
Ad justing.............................................. 64
Closing................................................. 62
Opening................................................ 62
Opening/closing the pop-out window.... 63
Sliding door
Sliding door
Child saf ety loc k................................... 49
Closing (from the inside).......................56
Closing (from the outside).....................55
Opening (from the inside)...................... 56
Opening (from the outside).................... 55
Sliding sunr Sliding sunr oof
oof
see Panorama sliding sunroof
Smar
Smar tphone
tphone
see Smartphone integ ration
see Telephone
Smar
Smar tphone int
tphone int egr
egration
ation
Overview............................................ 209 326
326
Index

V
V
ehicle sensors
ehicle sensors
Information.........................................1 52
V
V ehicle t
ehicle t ool kit
ool kit
Information......................................... 250
Jack.................................................... 250
St ow age compartment in there ar...... .250
To wing eye.......................................... 249
VIN
VIN
Identi/cation plate.............................. 270
Reading out....................................... .270
Seat................................................... 270
Wi ndsc reen.........................................2 70
V
V ision ision
Demisting windo ws............................. 127 W
W
W
W ar
ar ning syst
ning syst em
em
see ATA (Anti-TheT Alarm system)
W
W ar
ar ning tr
ning tr iangle
iangle
Re moving............................................ 235
Setting up........................................... 235
W
W ar
ar ning/indicat
ning/indicat or lamp
or lamp
! ABSwarning lamp...................... 306
J Brake system warning lamp
.................................................. 304, 305
? Coolant warning lamp........ 309, 310
; Engine diagnostics warning
lamp...................................................3 09
å ESP®
OFF warning lam p............. 307
÷ ESP®
wa rning lamp.................... 306
6 Fuelreser vewarning lamp.........3 09
! Indicator lamp for parking
brake.................................................. 307
Ð Power steering system warn-
ing lamp.............................................3 09
6 Restraint system warning lam p... 304
ü Seat belt warning lamp...... 307, 308
h Tyre pressure monitoring sys-
te m wa rning lamp............................... 311
· Warning lamp for distance
wa rning function................................. 308
PA SSENGER AIR BA G............................ 36
W
W ar
ar ning/indicat
ning/indicat or lam
or lamps
ps
No tes................................................ .304
Overview................................................. 7
W
W arr
arr anty
anty.....................................................25 W
W
asher
asher 0uid
0uid
see Windsc reen washer 0uid
W
W ashing b
ashing b y hand (car
y hand (car e)
e)............................. 231
W
W ashing t
ashing t he engine
he engine ................................... 230
W
W eat
eat her inf
her inf or
ormation
mation ................................. .206
W
W eb brow
eb brow sers
sers
Overview............................................2 10
Wheel rot
Wheel rotation
ation .......................................... 260
Wheels
Wheels Care.................................................. .232
Changing............................................ 260
Checking............................................ 252
Checking the tyre pressure (tyre
pressure monitoring system)............... 258
Fi tting................................................. 263
Flat tyre.............................................. 238
Noise.................................................. 252
No tes on /tting................................... 258
Re moving............................................ 263
Re placing.................................... 258, 261
Re starting the tyre pressure monitor... 258
Selection............................................ 258
Snow chains....................................... 253
St oring................................................ 261
Te ch nical dat a..................................... 264
Ty re pressure (No tes).......................... 253
Ty re pressure monitoring system
(function)............................................ 257
Ty re pressure table............................ .254
Unusual driving characteristics............ 252
Wheel size catego ries......................... 260
Wheel/tyre combination.....................2 64
Wheels (car
Wheels (car e) e)............................................ 232
W
W i-Fi
i-Fi
Setting................................................ 200
W
W indo
indo w airbag
w airbag............................................ 33
W
W indo
indo w
wliTer
liTer
see Side windo ws
W
W indo ws
indo ws
see Side wind ows
W
W indow
indow s (car
s (care)
e) ......................................... 232
W
W indscr
indscr een
een
Demisting...........................................1 27
Re placing the wiper blades.................. 118
W
W indscr
indscr een
een
see Windsc reen
W
W indscr
indscr een w
een washer
asher 0uid
0uid........................... 277
W
W indscr
indscr een wipers
een wipers
Re placing the wiper blades.................. 118
Switching on/o.................................. 118 330
330
Index