
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.
Yo u 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
red po werst eering sy stem warning lamp lights up while the engine
is running.
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 operat‐
ing saf ety is jeopardized. #
Consult a qualified specialist workshop. #
Read the messages on the multifunction displa y.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. Display messages and
warning and indicator lamps 303

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions #
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 the
engine has cooled down. #
Check the coolant le vel(/ page 206). #
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 tem‐
perature 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.
The fuel supplies ha vereached there ser veleve l. #
Refuel.
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 eme rgency operation mode. #
Have theve hicle checked as soon as possible at a qualified special‐
ist 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 tire pressure monitoring sy stem is malfunctioning. 304
Display messages and warning and indicator lamps

Changing bulbs
...................................... .83
High beam .......................................... 84
Indicator (front) .................................. 84
Interior lamps (rear compartment) ..... 88
License plate lamp ............................ .86
Light bulb types haloge n headlamps ..84
Low beam ........................................... 84
No tes .................................................83
Ta il lamp bulb types (Cargo Van
and Passenger Van) ............................ 85
Ta il lamp bulb types (chassis) ............ .87
Tu rn signal light (rear) (chassis) ..........87
Changing lamps see Changing bulbs
Changing owner ...................................... 21
Cha racteristics of the tire .................. .245
Charging Battery .............................................. 219
Mobile phone (wireless) ..................... 77
Child saf ety lock (doors) ........................ 39
Child seat front-passenger seat (no tes) .............. 38
front-passenger seat (rear ward-
fa cing/for ward-facing) ....................... 38
LA TC H-type (ISOFIX) (ins talling) ........ .36
LA TC H-type (ISOFIX) (no tes) ............... 36
No tes on the safe transpor tation of
ch ildren .............................................. 34
Re arwa rd-facing child restra int sys‐
te m (Information) .............................. .38
To pTe ther ...........................................37
Child ren
No tes on safe transpor tation .............. 34
Special seat belt retractor .................. 35
Ci ga rette lighter ..................................... 75
Cleaning see Care
Cleaning water drain valve of the air
intake box ............................................ .208
Climate control Activating/deactivating ...................... 95
Ad justing rear-compartment heat‐
ing ...................................................... 96
Air distribution settings ...................... 97
automatically controlling (rear
passenger compartment) .................. .97
Au xilia ryheating ................................. 99
Cargo compartment ventilation ........ 102
Clearing fogged up windo ws............... 97
Control panel for 3-zone auto matic
clima tecontrol ................................... 95 Control panel
for dual-zone auto‐
matic clima tecontrol .......................... 94
Controlling automatically .................... 96
Hot- wate r auxilia ryheater ................1 00
Re frigerant ........................................ 271
Setting the air distribution .................. 97
Switching ai r-re circulation mode
on/off ................................................ 98
Switching synchronization function
on/off (control panel) ......................... 97
Switching the A/C function on/off ....96
Switching there ar wind ow
defros ter on/off ................................. 98
Switching the windshield heater
on/off ................................................ 98
Ve ntilating theve hicle (con veni‐
ence opening) ..................................... 54
Ve ntilation nozzles at front ................. 98
Ve ntilation nozzles in thero of ............ 99
Ve ntilation nozzles, rear passenger
compartment .................................... .99
Cockpit (o verview) .................................. .6
Combination switch see High beam
see High-beam flasher
see Indicator
Compu ter
see On-board computer
Contacts ................................................ 185
Calling up ........................................ .185
Deleting ............................................ 185
Downloading (from mobile phone) .... 185
Information .......................................1 85
Making a call ................................... .185
Na me form at .................................... 185
Con venience closing .............................. 54
Con venience opening ............................. 54
Con versions ............................................ 19
Coolant Filling capacities .............................. .270
Coolant (engine) Che cking le vel .................................. 206
No tes ............................................... 269
Copyright License ............................................... 27
Tr ademar ks......................................... 27
Cornering light ...................................... .80
Crosswind Assist Function/no tes ................................ 13 8
Cruise control ...................................... .141
Ac tivating ......................................... 14 2 Index
309

Ad
aptive Highbeam Assist Cur‐
re ntly Una vailable See Opera tor's
Manual ............................................. 296
Ad aptive Highbeam Assist Inopera‐
tive .................................................. .296
0099 Additive Sy stem Fault Emer‐
ge ncy Op.: XXX mph See Opera‐
to r's Manual .................................... .290
0099 Additive Sy stem Fault See
Operator's Manual ...........................289
0099 Additive Sy stem Fault Starts
until Emerg. Op.: XXX See Opera‐
to r's Manual .................................... .289
Air Conditioning Malfunction See
Operator's Manual ............................ 294
Apply Brake toShift from 'P' ............ 295
00AD ATTENTION ASSIST Inopera‐
tive ................................................... 285
00AD ATTENTION ASSIS T:Take a
Break! ............................................... 285
0049 AutoLamp Function Inopera‐
tive ................................................... 296
Au xilia ryBattery Malfunction ........... 294
Blind Spot Assi stCur rently
Un available See Operator's Manual
.......................................................... 284
Blind Spot Assist Inoperative ............ 284
Blind Spot Assist Trailer NotMoni‐
to re d ................................................ 284
004D Check Brake Fluid Le vel.......... 279
Check Brake Pads See Operator's
Manual .............................................2 79
00AC CheckCoolant Le vel See
Opera tor's Manual ........................... 288
00B2 Check Engine Oil AtNext
Re fueling .......................................... 287
00B2Che ckEngine Oil Le vel (Add 1
Liter) ................................................ 286
003ACheck Fuel Filter ......................2 86
0049Che ckLeft Low Beam (e xam‐
ple) .................................................. .296
0077Che ckTire s .............................. 291
00B2 Check Washer Fluid ................2 9200AC
Coolant Too Hot Stop Vehicle
Tu rn Engine Off ................................ 288
Cruise Control Inoperati ve............... 283
00CE Currently Un available Cam‐
era Dirty .......................................... .283
Curr ently Un available Radar Sen‐
sors Dirty .........................................2 84
0025 Currently Una vailable See
Opera tor's Manual ........................... 282
00E5Curr ently Unavailable See
Operator's Manual ............................ 281
00AFDon't Forget Your Key.............. .291
Driver's Door Open & Transmission
Not in P Risk of Vehicle Rolling
Aw ay ................................................ 295
00B3Engine Oil Le vel Cann otBe
Measured ......................................... 286
00B2 Engine Oil Le vel Low Stop
Ve hicle Turn Engine Off .................... 286
00B2Engine Oil Pressure Stop
Switch Off Engine ............................. 286
00B2 Engine Oil Reduce Oil Le vel.... .2 86
0075Fr ont Left Malfunction
Service Required (e xample).............. 277
00D4 Fuel Le vel Low ........................ .285
0024Incline TooSt eep See Opera‐
to r's Manual ..................................... 278
003B Inoperative Battery Low ...........293
003B Inoperative Refuel Vehicle .......2 93
0025 Inoperative See Operator's
Manual ............................................. 282
00E5Inope rative See Operator's
Manual ............................................ .281
007A Inoperative See Operator's
Manual .............................................2 81
003B Inoperative See Operator ’s
Manual ............................................. 293
00AFKe yNot De tected (red dis‐
pl ay messa ge)...................................2 91
00AF KeyNot De tected (white dis‐
pl ay messa ge).................................. 292 Index
311

Mobile phone
see Android Auto
see Apple CarPlay™
see Mobile phone
see Telephone
Mobile phone voice recognition
St arting ............................................ 184
St opping ...........................................1 84
Model series .......................................... 261
Mounting a load .............................. 72,19 5
Multi Purpose Vehicle (MPV) .................24
Multifunction display (on-board
computer) ............................................. 16 5
Multifunction steering wheel
But tonov erview ................................ 16 4
Multifunction steering wheel
see Steering wheel
Multimedia sy stem
Ad justs thevo lume .......................... .177
Con figuring display settings .............1 79
Entering characters .......................... 178
Main functions ..................................1 75
Re storing thefa ctory settings ........... 181
Switching the sound on or off ........... 176
Multimedia sy stem
see Display (multimedia sy stem)
see MBUX multimedia sy stem (o verview)
see Touch Control N
Ne arField Communication (NFC) .......1 83
Connecting the mobile phone to
th e multimedia sy stem ..................... 183
Gene ral information .......................... 183
Switching mobile phones ................. 183
Using a mobile phone ....................... 183
NFC see Near Field Communication (NFC)
No zzles
see Air vents O
Occupant saf ety
Pe ts in theve hicle .............................. 40
Occupant saf ety
see Airbag
see Restra int sy stem
see Seat belt
Odome ter
see Display total dis tance (trip menu) Oil
see Engine oil
On-board co mputer .............................. 16 4
Ad justing thest ationary heater/
ve ntilation ......................................... 101
Assi stance graphic menu ................ .166
Displ aying the service due date .......2 02
Media menu ..................................... 16 9
Menus overview .............................. .164
Multifunction display ........................ 16 5
Operating ......................................... 16 4
Ra dio menu ...................................... 16 8
Service menu ................................... 16 6
Settings menu .................................. 17 0
Te lephone menu .............................. .169
Tr ip menu .......................................... 167
On-board diagnostics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics ............................ 260
No tes ............................................... 260
Tw o-w ayradios .................................2 60
Open-source software ...........................27
Opening and closing the loc kable
compartment abo vethe windshield .....73
Opening the cup holder in there ar
passenger comp artment....................... 74
Opening/closing the hood .................. 202
Operating fluids
Ad ditives (fuel) .................................2 64
Brake fluid ........................................ 269
Coolant (engine) .............................. .269
DEF ................................................. .266
Engine oil .......................................... 267
Fu el (diesel) ...................................... 264
Fu el (gasoline) ..................................2 64
No tes ............................................... 263
Wi ndshield washer fluid ............ 270,271
Operating Instructions (vehicle
equipment) ............................................. 20
Operating saf ety
Chan ges in the engine po wer out‐
put ...................................................... 23
Declaration of conformity (wire less
ve hicle components) .......................... 22
Information ......................................... 21
Operating sy stem
On-board computer .......................... 16 4
Outside mir rors ...................................... 90
fo lding in/out .................................... .90
Setting ................................................ 90 318
Index

Ve
hicle data storage
Event data recorders .......................... 26
Ve hicle dimensions .............................. 271
Ve hicle identification number
see VIN
Ve hicle identification plate
EU general operating pe rmit num‐
ber .................................................... 261
Gross axle weight rating ................... 261
Pa int code ........................................ 261
Pe rm issible gross mass .................... 261
VIN .................................................. .261
Ve hicle identification plate
see Model series
Ve hicle key
see Key
Ve hicle le vel
Lo we ring ........................................... 12 3
Ra ising .............................................. 12 3
Ve hicle maintenance
see ASS YST PLUS
Ve hicle operation
Outside the USA or Canada ................20
Ve hicle tool kit ............................ .227, 229
Ve hicle tool kit stow age comp art‐
ment ...................................................... 229
VIN ........................................................ .261
Identification plate ............................ 261
Re ading out ...................................... 261
Seat .................................................. 261
Wi ndshield ........................................ 261 W
Wa rning and indicator lamps
Overview .......................................... 296
Wa rning lamp ........................................ 216
Wa rning sy stem
see ATA (Anti -Theft Alarm sy stem)
Wa rning/indicator lamp .......................... 7
0025ABS warning lamp .................... 302
0024and .................. 297, 298, 299, 300
004DBrake sy stem warning lamp
(yellow) ............................................ .299
004DBrake warning lamp (red)
(Canada) .......................................... .300
0027Brake warning lamp (red)
(USA) ................................................ 300
00ACCoolant warning lamp .............. 303 00BADis
tance warning lamp ............ .303
0024Electric parking brake applied
re d indicator lamp (Canada) does
not light up .......................................2 97
0049 Electric pa rking brake applied
re d indicator lamp (USA) does not
light up .............................................2 97
0024 Electric pa rking brake mal‐
functioning yellow indicator lamp
lights up .................................. .297, 298
003DElectrical malfunction warn‐
ing lamp .......................................... .304
00B9Engine diagnosis warning
lamp ................................................ .304
00BBESP ®
OFF warning lamp .......... .301
00E5 ESP®
wa rning lamp flashes ...... 301
00E5ESP ®
wa rning lamp lights up .... 301
00D4Fu elreser vewarning lamp ...... .304
00CCPo werst eering sy stem warn‐
ing lamp .......................................... .303
0024Re d electric pa rking brake
applied indicator lamp (Canada)
fl ashes ............................................ .298
0024Re d electric pa rking brake
applied indicator lamp (Canada)
lights up .................................. .297, 298
0049Re d electric pa rking brake
applied indicator lamp (USA)
fl ashes ............................................ .298
0049Re d electric pa rking brake
applied indicator lamp (USA) lights
up ............................................ .297, 298
0024Re d parking brake applied
indicator lamp (Canada) lights up .....2 99
0049Re d parking brake applied
indicator lamp (USA) lights up .......... 299
0075Re stra int sy stem warning
lamp ................................................ .300
0076Seat belt warning lamp
fl ashes ............................................ .302
0076Seat belt warning lamp lights
up .................................................... .302 Index
325