engine coolant MERCEDES-BENZ V-CLASS 2021 User Guide

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Stop theve hicle immediately in accordance with the tra1c condi-
tions and switch it o.. #
Secure theve hicle against rolling away. #
Exit theve hicle and keep a safe distance from it until the engine has
cooled down. #
Check the coolant le vel and top up with coolant, complying with the
inst ructions (/ page 228). #
Ifth e coolant has tobe topped up frequentl y,ha ve the engine cool-
ing system checked at a quali/ed specialist workshop. #
Ensure that the air supply tothera diator is not impaired, e.g. by a
plastic bag that has been blown onto thegr ille. #
Monitor the coolant temp erature display on the inst rument cluster. #
Do not restart the engine until the coolant temp erature is below
120°C. If you do, the engine may be damaged. #
Drive on tothe nearest quali/ed specialist workshop. Avoid high
engine loads, e.g. driving in mountainous terrain or stop-and-go
driving.
?
Coolant warning lamp *The
red coolant warning lamp is on while theve hicle is on. A warning
to ne also sounds.
The coolant has exceeded thete mp erature of 120°C. The air supply to
th era diator may be impaired or the coolant le vel may be too lo w.
The engine has not been su1cient lycooled and may be damaged. &
W
WARNING
ARNING Risk of burns when opening the bonnet
If yo u open the bonnet in theev ent of an overheated engine or /re
in the engine compartment, thefo llowing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other escaping hot operating
0uids. #
Before opening the bonnet, allow the engine tocool down. #
Intheev ent of a /re in the engine compartment, keep the
bonnet closed and call the /re service. #
Pay attention tothe display messages. #
Stop theve hicle immediately in accordance with the tra1c condi-
tions and switch it o.. #
Secure theve hicle against rolling away. #
Exit theve hicle and keep a safe distance from it until the engine has
cooled down. #
Check the coolant le vel and top up with coolant, complying with the
inst ructions (/ page 228). #
Ifth e coolant has tobe topped up frequentl y,ha ve the engine cool-
ing system checked at a quali/ed specialist workshop. #
Ensure that the air supply tothera diator is not impaired, e.g. by a
plastic bag that has been blown onto thegr ille. 310
310
Display message
s andwarning and indicator lamps

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

Fi
lling capacities.................................2 77
To pping up.......................................... 228
Coolant (engine)
Coolant (engine)
Notes................................................ .277
Cop
Cop yr
yright
ight.................................................... 28
Cor
Cor ner
nering light
ing light..........................................1 09
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes................................... 154
Cr
Cr uise contr
uise contr ol
ol
Ac tivating........................................... 158
Calling up a speed.............................. 158
Deactivating....................................... 158
Fu nction............................................. 157
Inc reasing/decreasing speed.............. 158
Le ver.................................................. 158
Re quirements:.................................... 158
Selecting............................................1 58
Setting the speed................................ 158
St oring a speed................................... 158
System limits...................................... 157
Cup holder
Cup holder
Switching the cooling/heating func-
tion on/o........................................... 103
Cup holders
Cup holders
Rear.................................................. .103 D
D
Dashboar Dashboar d lighting d lighting
see Instrument lighting
Dat
Dat a acq
a acq uisition (v
uisition (v ehicle)
ehicle)............................ 25
Dat
Dat a pr ot
a pr otection r
ection r ights
ights
Data storag e......................................... 28
Dat
Dat a st
a st or
orage
age
Data pr otection rights........................... 28
Electronic control units......................... 25
Service pr ovider.................................... 27
Da
Da ytime r ytime r unning lights
unning lights
Ac tivating/deactivating....................... 107
Re placing light sources...................... .114
Dealer
Dealer ship
ship
see Quali/ed specialist workshop
Declar
Declar ation of conf
ation of conf or
ormity
mity
Elect romagnetic compatibilit y............... 19
Impor ter addresses...............................22
Jack...................................................... 22
Speci/c absorp tionrate........................ 19
Wi reless vehicle component s................ 19
Demis
Demisting windscr ting windscr een een............................... 127
Des
Destination entry tination entry
Entering a POI or addre ss.................... 204 Diagnos
Diagnos
tics connection
tics connection .............................. .23
Dialling a phone number (on-board
Dialling a phone number (on-board
com com put
puter)
er)................................................. 188
Diesel
Diesel Low outside temp eratures................... 273
No tes................................................ .273
Digit
Digit al Owner's Manual
al Owner's Manual...............................15
Digit
Digit al r
al rear
ear vie
view mirr
w mirr or
or............................... 121
Dipped beam
Dipped beam
Setting for abroad (symmetrical)......... 107
Switching on/o.................................. 107
DIRECT SELECT lev
DIRECT SELECT lev er
er
Engage reve rsege ar........................... .142
Engaging drive position.......................1 43
Engaging neutral................................. 142
Engaging park position automaticall y... 143
Fu nction............................................. 141
Selecting park position....................... 143
Tr ansmission position s........................ 141
Displa
Displa y (car
y (care)
e)............................................ 233
Displa
Displa y (ins
y (instrtrument clust
ument clust er)
er)....................... 183
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Operating........................................... 197
Displa
Displa y (multimedia syst
y (multimedia syst em)
em)
Home screen...................................... 197
Displa
Displa y message
y message
Calling up (on-board computer)........... 281
No tes................................................ .281
Dist
Dist ance adjus
ance adjustment tment
see Active Distance Assist DISTRONIC
Dist
Dist ance contr
ance control ol
see Active Distance Assist DISTRONIC
Dist
Dist ance w
ance w ar
arning function
ning function
see Active Brake Assist
DIS
DIS TR
TRONIC
ONIC
see Active Distance Assist DISTRONIC
Door
Door Activating/deactivating the auto-
matic locking mechanism...................... 55
Locking (emer gency key)...................... .55
Opening (from the inside)...................... 53
Unlocking (emer gency key).................. .55
Unlo cking (from the inside)................... 53
Door contr
Door contr ol panel
ol panel...................................... 14
Do
Do wnhill dr
wnhill dr iving
iving
see DSR (Downhill Speed Regulation)
Dr
Dr iv
ive pr
e pr ogr
ogram display
am display ............................... 144
Dr
Dr iv
ive pr
e pr ogr
ograms
ams
see DYNAMIC SELECT Index
317
317

Making a call via
theove rhead con-
trol panel............................................ 191
Tr ansfer red data................................. 194
Mer
Mer cedes-Benz emerg
cedes-Benz emerg ency call syst
ency call system
em
Au tomatic emer gency call................... 236
Information......................................... 236
Information about data trans fer........... 237
Manual emer gency call....................... 237
Overview............................................ 236
Self-diagnosis..................................... 238
St arting/ending ERA-GLONASS test
mode.................................................. 238
Mer
Mercedes-Benz ser cedes-Benz ser vice centre
vice centre
see Quali/ed specialist workshop
Messag
Messag e (displa
e (displa y section of t
y section of t he ins
he instr
tru-
u-
ment displa
ment displa y)
y)
see Displ aymessage
Messag
Messag e memory
e memory ...................................... 281
Mirr
Mirr ors
ors
Digital rearview mir ror......................... 121
Mirr
Mirr ors
ors
see Outside mir rors
Mobile phone
Mobile phone Frequencies........................................ 269
Tr ansmission output (maximum ).......... 269
Mobile phone
Mobile phone see Mobile phone
see Smartphone integ ration
see Telephone
Model ser
Model ser ies ies
see Vehicle identi/cation plate
Mot
Mot orwa
or wa y mode
y mode ........................................ 109
Mounting a load
Mounting a load ........................................ 214
Multimedia sy st
Multimedia syst em
em
see MBUX multimedia system N
N
N
N a
avig
vig ation
ation
Ac tivating........................................... 202
Displaying/hiding the menu................2 02
Menu (on-board computer)................. 185
Overview............................................2 03
Na
Na vig
vigation
ation
see Destination entry
see Map
see Route
Na Na vig
vigation ins
ation instr tructions (on-boar
uctions (on-boar d com-
d com-
put
put er)
er)........................................................ 185 O
O
Occupant sa fe
Occupant safe ty
ty
see Airbag
see Automatic co-driver airbag shuto.
see Automatic measures aTer an accident
see Child seat
see Pets in theve hicle
see Post-collision brake
see PRE-SAFE ®
(anticipa tory occu-
pant pr otection)
see Restraint system
see Seat belt
On-boar On-boar d com
d comput
puter
er
Assistant displa y menu........................ 184
Digital speedome ter............................ 184
Di splay.............................................. .183
Displaying the service due dat e........... 223
Media menu........................................ 187
Menu navigation................................. 185
Menu overvie w.................................... 183
Operation........................................... 181
Overview............................................ 181
Ra dio menu........................................ 187
Service menu...................................... 184
Settings menu..................................... 189
Showing thera nge.............................. 184
Te lephone menu................................. 188
Tr ip menu...........................................1 84
On-boar
On-boar d diagnos
d diagnostic int tic interf erface
ace
see Diagnostics connection
On-boar On-boar d electr
d electr onics onics
Engine electronics.............................. 269
No tes................................................ .269
Tw o-w ayradios................................... 269
Onboar
Onboar d Logic U d Logic Unit nit
Online services.................................... .27
Ve hicle data storag e............................. 27
Open-sour
Open-sour ce
cesoTw
soTw are
are................................. 28
Opening/closing t
Opening/closing t he bonnet
he bonnet..................... 224
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
.............................................. 274
Ad ditives (fuel).................................... 272
Brake 0uid.......................................... 276
Coolant (engine)................................. 277
Engine oil............................................ 275
Fu el (diesel)........................................ 273
Fu el (petrol)........................................ 272
No tes................................................ .271
Wi ndsc reen washer 0uid..................... 277
Oper Oper ating safe
ating safe ty
ty
Changes in the engine output................ 24 Index
323
323

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