Page 385 of 416

Seat belt
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0076
Seat belt warning lamp
fl ashes The seat belt
redwa rning lamp flashes and an intermit tent wa rning tone
sounds.
*The driver or front passenger does not ha vetheir belt on while the
ve hicle is in motion (speeds abo ve15 mp h (2 5 km/h)). #
Put on the seat belt (/ page 34).
*There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat.
0076
Seat belt warning lamp
lights up The seat belt
redwa rning lamp lights up af terth e engine has star ted.
A wa rning tone may also sound.
*When theve hicle is stationary: The seat belt warning lamp reminds
drivers and front passengers toput on their seat belt. #
Put on the seat belt (/ page 34).
Objects on the front passenger seat may pr eventthe seat belt warn‐
ing lamp from going out. Driving sy
stems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00BA
Dis tance warning lamp The
red dis tance warning lamp lights up while you are driving and a
wa rning tone sounds.
*Y ou are approaching an obs tacle at too high a speed. #
Beready toapply the brakes immediatel y. #
Increase the dis tance. Ve
hicle Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00CC
Po we rst eering sy stem
wa rning lamp The po
werst eering sy stem redwa rning lamp lights up while the engine
is on.
*The po werst eering assis tance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering no longer functions as intended, theve hicle's oper‐
ating saf ety is jeopardized. #
Consult a qualified specialist workshop. #
Obser vethe messages on the multifunction displa y. Displ
aymessa ges and warning and indicator lamps 383
Page 386 of 416

Engine
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00AC
Coolant warning lamp The
red coolant warning lamp lights up while the engine is running.
* Po ssible causes:
R temp erature sensor malfunctioning
R coolant le velto o low
R air supply tothe engine radiator obstructed
R engine radiator fanfa ulty
If a warning tone also sounds, the coolant has exceeded thete mp era‐
ture of 248 °F (120 °C). &
WARNING Danger of bu rns when opening the hood
If yo u open the hood when the engine has overheated or during a
fi re inthe engine compartment, you could come into con tact wi th
hot gases or other escaping operating fluids. #
Before opening the hood, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the
hood closed and call thefire service. #
Stop immediately in accordance with the traf fic conditions and
switch off the engine. Do not continue driving. #
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp era‐
ture scale: #
Consult a qualified specialist workshop.
Otherwise: #
Leavetheve hicle and keep a safe dis tance from theve hicle until
th e engine has cooled down. #
Check the coolant le vel(/ page 282). #
Ensure that the air supply tothe engine radiator is not obstructed. #
Without subjecting the engine toexc essive stra in, continue tothe
nea rest qu alified specialist workshop. Ensure that the coolant
te mp erature display remains below 248 °F (120 °C).
003D
Electrical malfunction
wa rning lamp The elect
rical malfunction redwa rning lamp lights up.
*A malfunction has occur red in the electrics. #
Read the messages on the multifunction displa y.
00D4
Fu elreser vewarning
lamp The fuel
reser veyellow warning lamp lights up while the engine is on.
*T he fuel supplies ha vereached there ser veleve l. #
Refuel. 384
Displaymessa ges and warning and indicator lamps
Page 387 of 416

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00B9
Engine diagnosis warning
lamp The
yellow Check Engine warning lamp lights up while the engine is on.
*A malfunction has occur red in the engine, theex haust sy stem or the
fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine
may be running in emergency ope ration mode. #
Have theve hicle checked as soon as possible at a qualified spe‐
cialist workshop. Ti
res Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0077
Ti re pressure monitoring
sy stem warning lamp
fl ashes The
yellow tire pressure monitoring sy stem warning lamp (pressure
loss/malfunction) flashes forro ughly one minute and then lights up per‐
manentl y.
*The ti repressure monitoring sy stem is malfunctioning. &
WARNING Thereis a risk of an accident if the tire pressure
monitoring sy stem is malfunctioning
If th e tire pressure monitoring sy stem is malfunctioning, it is not
able toissue a warning if there is pressure loss in one or more of
th e tires.
Un derinflated tires ma y,forex ample, impair the driving, steering
and braking characteristics. #
Have the tire pressure monitoring sy stem checked at a quali‐
fi ed specialist workshop. #
Visit a qualified specialist workshop.
0077
Ti re pressure monitoring
sy stem warning lamp
lights up The tire pressure monitor
yellow warning lamp (pressure loss/malfunc‐
tion) lights up.
*The tire pressure monitor has de tected a tire pressure loss in at lea st
one tire. &
WARNING Risk of an accident due toinsuf ficient tire pres‐
sure
Ti re pressures that are too low pose thefo llowing hazards:
R The tires may bur st, especially as the load and vehicle speed
increase.
R The tires may wearexc essively and/or une venly, which may
greatly impair tire traction.
R The driving characteristics, as well as steering and braking,
may be greatly impaired.
Yo u could then lose cont rol of theve hicle. #
Obser vethere commended tire pressu re. #
Adjust the tire pressure if necessar y. Displ
aymessa ges and warning and indicator lamps 385
Page 388 of 416
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions #
Stop theve hicle in a safe location. #
Check the tire pressure and the tires. 386
Display messages and warning and indicator lamps
Page 389 of 416

1,
2, 3 ...
3-zone automatic climate control
(operating unit) .................................... .101
12 V so cket
see Soc ket (12 V)
11 5 V soc ket
see Soc ket (1 15 V)
360° Camera ........................................ 15 9
Care ................................................ .288
Fu nction ........................................... 15 9
Selecting a view ................................ 161
Switching au tomatic operation
on/off (rear view camera) ................. 161A
ABS (Anti-lock Braking Sy stem) .......... 14 6
Ac celeration
see Using kickdown
Ac cess data
Setting (Blue tooth®
) .........................2 55
Ac oustic locking verification signal
Ac tivating/deactivating ...................... 47
Ac tivating/deactivating the HOLD
function ................................................. 15 5
Ac tive Brake Assi st.............................. 14 9
Fu nction/no tes ................................ 14 9
Setting .............................................. 15 0
Ac tive Di stance Assist DISTRO NIC..... 15 2
Calling up a speed ............................ 15 3
Fu nction ........................................... 15 2
Increasing/decreasing speed ........... 15 3
Re quirements .................................. .153
St eering wheel buttons ..................... 15 3
St oring a speed ................................ 15 3
Switching off/deacti vating ............... 15 3
Switching on/activating ................... 15 3
Sy stem limitations ............................1 52
Ac tive Lane Keeping Assist .................167
Fu nction ........................................... 167
Sy stem limitations ............................1 67
Tr ailer operation .............................. .167
Ac tive Parking Assist
Maneuvering assis tance ................... 161
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction ............................................. 86
Switching on/o ff................................ 86
Ad d-on equipment .................................. 22 Ad
d-on equipment guidelines ............... 22
Ad ditional turn signal light (all-
wheel drive vehicles) ............................. 92
Ad diti ve ................................................. 344
DEF .......................................... 136, 343
Engine oil ......................................... 344
Ad diti ves
Fu el .................................................. 341
Ad diti ves (DEF)
see DEF
Ad diti ves (engine oil)
see Additive
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
ADR (working speed control) Adjusting .......................................... 16 9
Fu nction ........................................... 16 8
Switching on/off .............................. 16 9
Af ter-sales service center
see ASS YST PLUS
Air nozzles see Air vents
Air vents ........................................1 04,105
adjusting (front) ................................ 104
Ad justing (roof) ................................. 105
Re ar passenger compartment .......... 105
Airbag ...................................................... 35
Ac tivation ........................................... 32
Fr ont airbag (driver, front
passenger) ......................................... 35
Ins tallation locations .......................... 35
Overview ............................................ 35
Pr otection impaired ............................36
Pr otection pr ovided ............................ 35
Side airbag ........................................ .35
Wi ndow cur tain airbag ........................ 35
Alarm sy stem
see ATA (Anti-Theft Alarm sy stem)
Alertness assistant see ATTENTION ASSIST
All-wheel drive Engaging ...........................................1 25
Engaging/disengaging ..................... .125
LO Wrange ........................................ 12 6
No tes ................................................ 124
Alternative route
see Route Index
387
Page 390 of 416

Android
Auto ......................................... 252
Connecting a mobile phone .............. 253
Control using the application but‐
to ns .................................................. 253
Ending .............................................. 253
No te ................................................. 253
Overview .......................................... 252
Sound settings ................................. 253
Tr ans ferred vehicle data ...................2 53
Animals Pets in theve hicle .............................. 45
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft Alarm sy stem
see ATA (Anti -Theft Alarm sy stem)
Anti-theft pr otection
Immobilizer ........................................ .61
Anti-theft pr otection
see ATA (Anti -Theft Alarm sy stem)
Apple CarPlay ®
...................................... 251
Connecting an iPhone ®
.................... 252
Control using the application but‐
to ns .................................................. 252
Ending .............................................. 252
No tes ................................................ 251
Overview ...........................................2 51
Sound settings ................................. 252
Tr ans ferred vehicle data ...................2 53
Ashtr ays
In the windshield stowage com‐
partment ............................................ 79
ASR (acceleration skid cont rol) .......... .147
Assistance graphic (on-board com‐
puter) ..................................................... 17 9
ASS YST PLUS ........................................ 278
Battery disconnection periods .......... 278
Displ aying the service due date ........ 278
Fu nction/no tes ................................ 278
Re gular maintenance work ............... 278
Special service requirements .......... .278
ATA (Anti-Theft Alarm sy stem) .............. .61
Ac tivating/deactivating the interior
motion sensor .................................... 63
Fu nction .............................................. 61
Interior motion sensor function .......... 63
St opping the alarm ............................. 62
Switching theto w- aw ay alarm
on/off ................................................ 62
To w- aw ay alarm function .................... 62 At
tachments .......................................... .22
AT TENTION ASSI ST....................... 162, 16 3
Fu nction ........................................... 16 2
Setting .............................................. 16 3
Sy stem limitations ............................1 62
Au thorized workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights ........................84
Au tomatic transmission
DIRECT SELECT le ver ........................ 12 2
Engaging drive position .................... 12 3
Engaging neutral ............................... 12 2
Engaging reve rsege ar ...................... 12 2
Kickdown .......................................... 124
Re stricting the shift range ................ 124
Selecting pa rkposition .....................1 23
Tr ansmission position display .......... .122
Tr ansmission positions .................... .122
Au xiliary heating ..................................1 05
Fu nction ........................................... 105
Axle load .............................................. .338 B
Back support see Lumbar support (4-w ay)
BA S (Brake Assist Sy stem) .................. 14 6
Battery Charging ........................................... 295
Charging a vehicle battery ................2 95
Disconnecting the auxiliary battery
in the engine compartment .............. 300
Disconnecting thest ar ter battery .... 298
Jump -sta rting (vehicle) .................... .295
Ke y .................................................... .47
No tes (vehicle) ................................. 294
Re moving or ins talling thest ar ter
battery .............................................2 99
St arter battery .................................. 297
Battery main switch Notes ................................................ 12 0
Switching po wer supp lyon/off ......... 121
Belt see Seat belt
Belt warning
see Seat belt
Blind Spot Assist .................................. 16 4
Ac tivating/deactivating .................... 16 5
Fu nction ........................................... 16 4
Re ar Cross Traf fic Alert .................... 16 6388
Index
Page 391 of 416

Sy
stem limitations ............................1 64
Blue tooth ®
............................................. 211
Ac tivating/deactivating .................... 211
Information .......................................2 10
Setting up an Internet connection .... 255
Bottle holder ........................................... 78
Brake ABS (Anti-lock Braking Sy stem) ........ 14 6
Ac tivating/deactivating the HOLD
function ............................................ 15 5
Ac tive Brake Assi st........................... 14 9
BA S (Brake Assi stSystem) ............... 14 6
Braking wi thparking brake: .............. 11 4
Downhill gradient .............................. 11 4
Driving no tes ............................. 111,11 4
EBD (electronic brake forc e distri‐
bution) ..............................................1 48
Heavy and light loads ........................ 11 4
HOLD function .................................. 15 5
New brake discs and brake pads/
linings ............................................... 11 4
Re stricted braking ef fect (salt-trea‐
te dro ads) ........................................ .114
We tro ad sur faces ............................. 11 4
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake Assistance see BAS (Brake Assi stSystem)
Brake fluid
No tes ............................................... 346
Brake forc e distribution
EBD (electronic brake forc e distri‐
bution) ..............................................1 48
Brakes Breaking-in no tes .............................. 111
New/replaced brakepads/brake
discs .................................................1 11
Breakdown Assi stance overview .......................... .18
Changing a wheel ............................ .327
Ro adside Assis tance ........................... 24
To w starting .................................... .304
To wing away ..................................... 301
Tr ansporting theve hicle ...................3 03
Breakdown see Flat tire
Breaking-in no tes ..................................1 11
Bulbs Reversing light .................................... 94
Buttons Steering wheel ..................................1 76 C
Call list Calling up options ............................ .249
Deleting ............................................ 24 9
Making a call .................................... 24 9
Overview .......................................... 24 9
Calls ...................................................... .246
Ac cepting ......................................... 24 6
Ac tivating functions du ring a call ...... 24 6
Calls with se veral participants .......... 24 6
Declining .......................................... 24 6
Ending a call ..................................... 24 6
Incoming call during an existing
call .................................................. .246
Making ............................................. 24 6
Camera see 360° Camera
see Rear view camera
Car wash
see Care
Car wash (care) .................................... 286
Car-to-X-Communication Displaying hazard warnings .............. 235
Overview .......................................... 235
Sending hazard warnings ................ .235
Care ....................................................... 290
Car wash .......................................... 286
Carpet ..............................................2 90
Displ ay............................................. 290
Exterior lighting ................................ 288
Headliner .......................................... 290
Matte finish ...................................... 287
Pa int ................................................ .287
Plastic trim ....................................... 290
Po we rwa sher ................................... 286
Re alwo od/trim elements ................2 90
Re ar view camera/360° Camera .... .288
Seat belt .......................................... .290
Seat co ver ........................................ 290
Sensors ............................................ 288
Ta ilpipes .......................................... .288
Tr ailer hit ch...................................... 288
Wa shing byhand .............................. 287
Wheels/rims .................................... 288
Wi ndo ws ........................................... 288
Wi per blades .................................... 288
Cargo compartment lighting Motion de tector .................................. 89
Cargo co mpartment ventilation
Deactivating .....................................1 08
Setting .............................................. 108
Cargo tie-down point ............................273 Index
389
Page 392 of 416

Cargo tie-down points
Info rm ation ...................................... 353
Carpet (care) ........................................ .290
Change bulbs Additional turn signal light (all-
wheel drive vehicles) .......................... 92
Changing a bulb see Changing bulbs
Changing a wheel Lowe ring theve hicle .........................3 31
Preparing .......................................... 327
Ra ising theve hicle ........................... 328
Re moving a wheel ............................ 330
Changing address ................................... 24
Changing bulbs ...................................... .90
High beam .......................................... 91
Indicator (front) .................................. 91
Interior lamps (rear compartment) ..... 94
License plate lamp ............................ .93
Light bulb types haloge n headlamps ..91
Low beam ........................................... 91
No tes .................................................90
Ta il lamp bulb types (Cargo Van
and Passenger Van) ............................ 92
Ta il lamp bulb types (chassis) ............ .93
Tu rn signal light (rear) (chassis) ..........94
Changing lamps see Changing bulbs
Changing owner ...................................... 24
Cha racteristics of the tire .................. .321
Cha rging
Bat tery ............................................. 295
Mobile phone (wireless) ..................... 82
Child saf ety lock (doors) ........................ 44
Child seat Attach ing (no tes) ................................ 40
Basic instructions ...............................36
Fr ont-passenger seat (no tes) .............. 43
LA TC H-type (ISOFIX) (ins talling) .......... 41
No tes on risks and dangers ................37
Re arwa rd-facing child restra int sys‐
te m (Information) .............................. .43
Secu ring on the front passenger
seat ....................................................43
Secu ring on there ar seat .................. .42
To pTe ther .......................................... 42
Children Avoiding dangers in theve hicle ..........37
Basic instructions ............................... 36
Special seat belt retractor .................. 40
Ci ga rette lighter ..................................... 79 Cleaning
see Ca re
Cleaning water drain valve of the air
intake box ............................................ .284
Climate control Activating/deactivating .................... 101
Ad justing rear-compartment heat‐
ing .................................................... 102
Air di stribution settings .................... 103
automatically controlling (rear
passenger compartment) ................ .103
Au xilia ryheating ...............................1 05
Carg o compartment ventilation ........ 108
Clearing fogged up windo ws............. 103
Control panel for dual-zone auto‐
matic clima tecontrol ....................... 100
Controlling automatically .................. 102
Hot-water auxiliary hea ter ............... .106
Operating unit for 3-zone auto‐
matic clima tecontrol ........................ 101
Re frigerant ....................................... 348
Setting the air distribution ................1 03
Switching air- recirculation mode
on/off .............................................. 104
Switching synchronization function
on/off (control panel) ...................... 103
Switching the A/C function on/off .. 102
Switching there ar wind ow
defros ter on/off .............................. .104
Switching the windshield heater
on/off ..............................................1 04
Ve ntilating theve hicle (con veni‐
ence opening) .................................... 60
Ve ntilation nozzles at front ............... 104
Ve ntilation nozzles in thero of ..........1 05
Ve ntilation nozzles, rear passenger
compartment .................................. .105
Cock pit (o verview) .................................. .6
Combination switch see High beam
see High-beam flasher
see Indicator
Compass .............................................. .239
Comp uter
see On-board computer
Connection status
Displ aying ........................................ .256
Overview .......................................... 256
Contacts ................................................ 247
Calling up ........................................ .247
Del eting ............................................ 24 8
Del eting favo rite s ............................. 24 9390
Index