
Display messages
Possible causes/consequences and 0050 0050Solutions #
Check the tires.
0077 Check Tires *T
he pressure in one or more tires has fallen significantl y.The wheel
position is shown. &
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. #
Stop in accordance with the tra ffic conditions. #
Check the tire pressure (/ page 234) andthe tires.
0077 Please Correct Tire Pres-
sure *T
he pressure in at least one tire is too low or the pressures of the
individual tires deviate too much from each other. #
Check the tire pressure, and add air if necessar y. #
When the tire pressure has been set cor rectl y,re-sta rt the tire
pressure monitor (/ page240).
Tire Pressure Monitor
Inoperative *T
he tire pressure monitor is malfunctioning. #
Visit a qualified specialist workshop. Key
Display messages
Possible causes/consequences and 0050 0050Solutions
00AF
Don't Forget Your Key *T
his message reminds you not tolea veyour key in theve hicle. #
Take theke y with you when youget out of theve hicle.
00AF Place the Key in the
Marked Space See Oper-
ator's Manual *K
eydetection is malfunctioning. #
Change theke y's position in theve hicle. #
Start theve hicle with theke y in the slot(/ page104).
00AF *T
hekey is not de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit chthe engine off:
R You can no lon gerst art the engine. Display messages and
warning and indicator lamps 291

Display messages
Possible causes/consequences and 0050 0050Solutions
Key Not Detected (red
display message) R
You cannot lock theve hicle centra lly. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toastro ngradio
signal source, proceed as follo ws: #
Stop theve hicle immediately, paying attention toroad and traf‐
fi c conditions. #
Place theke y in the slot forst arting with theke y (/ page104).
00AF Key No t Detected (white
display message) *T
hekey is cur rently not de tected. #
Change theke y's position in theve hicle. #
Ifth eke y is still not de tected, start the engine with theke y in
th e slot(/ page104).
00AF
Replace Key Ba ttery*T
hekey's bat tery isflat. #
Change the battery (/ page 42).
00AF
Obtain a New Key *T
hekey must be replaced. #
Visit a qualified specialist workshop. Ve
hicle Display messages
Possible causes/consequences and 0050 0050Solutions
00B2
Check Washer Fluid *W
asher fluid le vel in washer reser voir has fallen below the minimum. #
Top up washer fluid (/ page 208). *A
t least one door is open. #
Close all the doors. *T
he hood is open. &
WARNING Risk of accident if the engine hood is unlatched
while driving
An unloc ked engine hood may open up when theve hicle is in
motion and block your vie w. #
Never unlatch the engine hood while driving. #
Before every trip, ensure that the engine hood is latched. #
Stop in a safe location immediately. #
Close the hood. 292
Display messages and warning and indicator lamps

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

0075Left Side Cur
tain Airbag Mal‐
function Service Required (e xam‐
ple) .................................................. .277
0049 Malfunction See Operator ’s
Manual ............................................. 296
00CB Maximum Speed Exceeded ..... 283
N Pe rm anently Active Risk of Roll‐
ing Away ........................................... 294
00AF Obtain a New Key.................... 292
00B2 Off.......................................... .283
00D9 Off.......................................... .284
Only Shift to'P' when Vehicle is
St ationary ........................................ .294
0024 Parking Brake Inoperative ........278
0024 Parking Brake See Opera tor's
Manual ............................................. 279
00AF Place theKe y in the Mar ked
Space See Ope rator's Manual .......... 291
0077Please Cor rect Tire Pressure ....291
Ra dar Sensors Dirty See Opera‐
to r's Manual .................................... .280
00E2 Refill Ad ditive Emer gency
Op.: XXX mph See Operator's Man‐
ual ....................................................2 89
00E2 Refill Ad ditive See Operator's
Manual .............................................2 89
00E2 Refill Ad ditive Starts until
Emerg. Op.: XXX See Operator's
Manual ............................................ .289
Re generation not possible ................ 288
009E Replace Air Filter .....................2 85
00AFRe placeKey Bat tery ................. 292
Re versing Not Possible Service
Re quired .......................................... .294
003D See Ope rator's Manual ........... 287
Service Required Do Not Shift
Gears Visit Dealer ............................2 94
Shift to'P' or 'N' toStart Engine ...... 293
SOS NOT READY .............................. 280
0075 SRS Malfunction Service
Re quired .......................................... .278 00CC
Steering Malfunction
Incre ased Ph ysical Ef fort See
Ope rator's Manual ........................... 293
00CC Steering Malfunction Stop
Immediately See Operator's Man‐
ual ....................................................2 93
St ep Not Exte nded See Ope rator's
Manual or step not extended mal‐
function ............................................ 295
003DSt opVehicle Lea veEngine
Ru nning ............................................ 287
003D Stop Vehicle See Operator's
Manual ............................................. 287
0049Switch Off Lights ......................296
0049Switch On Headlamp s.............. 296
Ti re Press. Monitor Cur rently
Un available ...................................... .290
0077Ti rePress. Sen. Missing ........... 290
Ti re Pressure Monitor Inoperative ....291
Ti re Pressure Monitor Inoperative
No Wheel Sensors ............................2 90
To Engage Transmiss. Position R
Fir stDep ress the Brake .................... 293
Tr ansmission Malfunction Stop ........ 294
Ve hicle locating has been activa‐
te d. De tails: see manual or associ‐
ated mobile app. or vehicle locat‐
ing activated – see manual or
mobile app. ...................................... 295
0072Ve hicle Operational Switch
th e Ignition Off Before Exiting ..........294
0077 Warning Tire Malfunction ......... 290
Display range (trip menu) ....................167
Display total di stance (trip menu) ......167
Distance cont rol
see Active Dis tance Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Locking (emergency key) .................... 45
Un locking (emer gency key) ................ 45
Door cont rol panel ................................ .14 312
Index

Fr
ont door
Opening (from inside) ........................ .44
Un locking (from inside) ...................... 44
Fr ont seats
8- wa y adjustment options .................. 62
Ad justing (electrically) ........................ 62
Ad justing (manually) ..................... 59, 61
Memory function ................................ 62
Tu rning .............................................. .65
Wi th Seat Comfort Package ................ 61
Wi thout Seat Comfort Package .......... 59
Fu el ........................................................ 264
Ad ditives .......................................... 264
Diesel ...............................................2 64
Draining thefilter ............................ .209
E10 ................................................... 264
Flexible fuel vehicles ........................ 264
Fu elreser ve ..................................... 266
Gasoline ........................................... 264
Low outside temp eratures ................2 64
Problems .......................................... 127
Quality (diesel) ................................. 264
Quality (gasoline) ............................. 264
Re fueling .......................................... 12 5
Sulfur content .................................. 264
Ta nk capacity ................................... 266
Fu el consum ption (on-board com‐
puter) .................................................... .167
Fu el consum ption indicator
Calling up .......................................... 181
Fu ses ............................................. 228, 229
Before replacing ...............................2 28
Fu se box in the front-passen ger
fo ot we ll ............................................ 229
Fu se box in the seat base of the
driver's seat .....................................2 29
No tes ............................................... 228 G
Gasoline ................................................ 264
General operating permit number
(EU) ........................................................ 261
Genuine parts ......................................... 18
Glasses compartment ............................74
Gross axle weight rating ...................... 261
Gross mass ........................................... 261 H
Handbrake (electrical) see Electric pa rking brake Handbrake (manual)
see Manual parking brake
Handling control sy stem
see ESP ®
(Elect ronic Stability Prog ram)
Hazard warning lights ............................ 80
Swit ching on/off ................................ 80
Hazardous substances Information ........................................ .21
Head restra int
Ad justing mechanically ....................... 70
Headliner (care) .................................... 214
Heating sy stem (control panel) ............ 93
High beam .............................................. .80
Ac tivating/deactivating ...................... 80
Ad aptive Highbeam Assist .................. 81
Changing bulbs .................................. 84
High-beam flasher .................................. 80
Hill start assi st..................................... 14 5
HOLD function ...................................... 14 5
Home screen (media display) ..............174
Hot-water auxiliary heater ..................100
Fu nction ........................................... 100
Problems .......................................... 101
switching on/off with the button ...... 100
Switching on/off wi th the on-
board computer ................................ 101
Hydroplaning ........................................ 109 I
Identification pla te
Engine ............................................... 261
Re frigerant ........................................ 271
Ve hicle ..............................................2 61
Ignition key
see Key
Immobilizer ............................................ .55
Implied warranty (vehicle) .....................24
Indicator .................................................. 80
Ac tivating/deactivating ...................... 80
Changing bulbs (front) ........................ 84
Changing bulbs (rear) (Cargo Van
and Passenger Van) ............................ 86
Changing bulbs (rear) (chassis) .......... 87
Installations ............................................ 19
Instrument Display Function/no tes ................................ 16 3
Overview ...................................... 7, 16 3
Setting the lighting ........................... 16 6 Index
315

Instrument Display
see Warning/indicator lamp
Instrument lighting ..............................16 6
Intelligent light sy stem
Ad aptive Highbeam Assist .................. 81
Corne ring light ................................... 80
In te rior lamps (rear compa rtment)
(replacing the light bulbs) ..................... 88
In te rior lighting
Cargo compartment .......................... .83
Re ar compartment ............................ .83
Setting ................................................ 82
Switch-off del aytime .......................... 83
In te rior motion sensor
Fu nction ............................................. 57
Switching on/off ................................ 57
Interior roof car rier sy stem ................ .199
iPhone ®
see Apple CarPlay™ J
Jack ....................................................... 250
Hydraulic .......................................... 230
Re moving thehy draulic jack from
th estow age compartment .............. .230
St orage location of hydraulic jack .... 230
Jump-start connection .........................219
Jump-starting see Jump-s tart connection K
Ke y........................................................... 41
Battery ............................................... 42
Electrical consu mption ...................... .42
Fu nctions ............................................ 41
Ke yring attachment ........................... 42
Mechanical key .................................. .42
Overview ............................................. 41
Problem ..............................................43
Ra dio connection ................................ 41
Un locking setting .............................. .42L
Labeling (tires) see Tire labeling
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist ............................ .155
Fu nction ........................................... 15 5
Sy stem limitations ............................1 55Tr
ailer operation .............................. .155
Lane Keeping Assist
see Active Lane Keeping Assist
see Lane Keeping Assist
Language ............................................... 181
No tes ................................................ 181
Setting .............................................. 181
LA TC H-type (ISOFIX) child seat
securing sy stem
In stalling ............................................ .36
No tes .................................................36
Le vel control
see ENR (elect ronic le vel control)
License pla telamp (changing bulbs) .... 86
Light switch (o verview) ........................ .79
Lighting see Lights
Lights ...................................................... 79
Ad aptive Highbeam Assist .................. 81
Au tomatic driving lights ...................... 79
Combination switch ............................ 80
Cornering light ................................... 80
Driving abroad (symmetrical low
beam) ................................................. 79
Hazard warning lamps ........................ 80
High beam .......................................... 80
High-beam flasher .............................. 80
Indicator ............................................ .80
Light switch ........................................ 79
Low beam ........................................... 79
Pa rking light ...................................... .79
Re ar fog light ...................................... 79
Re sponsibility with lighting sy stems ... 79
Setting theex terior lighting switch-
off delay time ...................................... 81
Setting the instrument lighting ......... 16 6
Switching the sur round lighting
on/off ................................................ .81
Limiting speed ...................................... 107
Load Determ ining the maximum ................2 41
Sample calculation ........................... 24 2
Load distribution .................................. 19 6
Load index (tire) .................................. .245
Load securing Carg o tie-down point ........................ 197
Ins talling and removing tie-down
ey es .................................................. 19 8
No tes ................................................ 19 6
Load-bea ring capacity (tire) ................245 316
Index

Loading
Definitions ........................................ 24 6
Loading guidelines .........................72,19 5
Loading information table ...................240
Low beam Activating/deactivating ...................... 79
Changing bulbs ................................. .84
Setting for abroad (symmetrical) ........ 79
LO Wrange ............................................. 11 9
Lu bricant additives
see Additive
Lu mbar support (4-w ay)........................ 64 M
M+S tires .............................................. 233
Maintenance Vehicle ................................................ 21
Maintenance see ASS YST PLUS
Malfunction Restra int sy stem ................................ 28
Malfunction message see Display message
Manual parking brake ..........................13 3
App lying/ releasing .......................... .133
Emer gency braking ........................... 13 4
Fo lding up/down .............................. 13 3
Manually inflating air bello ws(ENR) ...1 24
Matte finish (cleaning instructions) ....211
Maximum load Determ ining ...................................... 241
Sample calculation ........................... 24 2
Maximum tire load ...............................244
Maximum tire pressure .......................24 5
MBUX multimedia sy stem (o ver‐
vi ew )...................................................... 173
Mechanical key
Locking door ...................................... 45
Re moving/inserting ........................... 42
Un locking door .................................. .45
Media Menu (on-boa rdcompu ter) ............... 16 9
Operating media playback ................1 69
Selecting a media sou rce ................. 16 9
Media display Entering characters .......................... 17 9
Home screen .................................... 174
No tes ................................................ 173Media mode
Adding a favo rite song ......................1 91
Connecting Blue tooth®
audio
equipment ........................................ 19 0
Connecting USB devices .................. 19 0
Controlling media playback .............. 191
Copyright and trademar ks................ 189
No tes about the sear chfunction in
categories ......................................... 191
Overview of the media menu ............ 19 0
Re moving a favo rite song .................. 191
St arting a sear chin categories ........ .192
St arting media playback .................. .191
Suppor tedfo rm at and data storage
media ............................................... 189
Using theke yword sear ch................ 19 2
Memory function (seat) .........................64
Menu (on-board computer) Assis tance graphic ........................... 16 6
Media ............................................... 16 9
Overview .......................................... 16 4
Ra dio ................................................ 16 8
Service ............................................. 16 6
Settings ............................................ 17 0
Te lephone ........................................ .169
Tr ip .................................................. .167
Mercedes PRO Information ....................................... 171
Mercedes PRO connect Accident mana gement ...................... 172
Calling the Cus tomer Center ............. 171
Information .......................................1 71
Making a call via theov erhead con‐
trol panel .......................................... 171
Ro adside Assis tance call via the
Ro adside Assis tance button .............. 171
Tr ans ferred data ...............................1 72
Mercedes-Benz emer gency call sys‐
tem
Information on data processing ........ 217
Message (multifunction display) see Display messa ge
Message memory ................................. 277
Mir rors
Ad justing the inside rearview mir ror ... 91
Mir rors
see Outside mir rors
Mobile phone ........................................ 260
Fr equencies ...................................... 260
Tr ansmission output (maximum) ...... 260
Wi reless charging .............................. .78 Index
317

Coupling/Decoupling
the trailer .......1 59
Gross axle weight rating ................... 261
Information ....................................... 16 0
Lane Keeping Assist .........................1 55
No tes ................................................ 157
Pe rm issible trailer loads and trailer
dr aw bar nose weights ........................ 161
Po we r supply .................................... 16 2
Soc ket .............................................. 15 9
Tr ailer loads ...................................... 272
Tr ailer stabilization ............................... 13 9
Tr ansfer redve hicle data
Android Auto .................................... 188
Apple CarPl ay™ ................................ 188
Tr ansmission position display .............11 5
Tr ansmission ratio
LO Wrange ........................................ 11 9
Tr ansmission ratio
see Engaging/disengaging LOW RANGE
Tr anspo rtby rail .................................. .108
Tr anspo rting (vehicle breakd own) ...... 227
Tr ead weargrade .................................. 24 3
Tr im element (care) .............................. 214
Tr ip
Display total dis tance ....................... 167
Menu (on-board computer) ............... 167
Tr ip computer
Re setting .......................................... 16 8
Showing ............................................ 167
Tr ip distance ........................................ .167
Showing ............................................ 167
Tr ip odom eter
Re setting .......................................... 16 8
Tr ip odom eter
see Trip dis tance
Tu rn signal light
Ad ditional turn signal light (all-
wheel drive vehicles) .......................... 85
Tw o-w ayradio telephone
see Mobile phone
Tw o-w ayradios
Fr equencies ...................................... 260
Ins tallation no tes .............................. 260
Tr ansmission output (maximum) ...... 260 U
Un its of measurement
Setting .............................................. 181
Un locking setting .................................. .42Un
locking/locking
Swit ching automatic locking fea‐
ture on/off ........................................ .45
Un locking and opening front doors
from inside ........................................ .44
USB soc ket in the rear passenger
comp artment .......................................... 77
Using a sun visor .................................... 92
Using kickdown .................................... 11 8
Using thete lephone
see Calls V
Ve hicle ................................................... 104
Cor rect use ........................................ 23
Data recording ................................... 25
Diagnostics connection ...................... 22
Equipment .......................................... 20
Implied warranty ................................ .24
Locking (auto matic) ............................ 45
Locking/unlocking (emergency key) .. 45
Lo we ring .......................................... 254
Maintenance ....................................... 21
Notify ing problems ............................ .24
Pa rking (s tart/s top button) .............. 13 2
Pa rking for an extended pe riod ........ 13 6
QR code rescue card .......................... 24
Qualified specialist workshop .............23
Ra ising .............................................. 251
Re gistration ........................................23
St arting (in emer gency operation
mode) ............................................... 104
St arting (s tart/s top button) .............1 04
Switching on po wer supply (s tart/
st op button) ...................................... 103
Un locking (from inside) ...................... 44
Ve ntilating (co nvenience opening) ...... 54
Ve hicle comp onents which receive
and/or transmit radio waves
Declaration of conformity ................... 22
Ve hicle data
Showing ............................................ 181
Tr ans ferring toAndroid Auto™ ......... 188
Tr ans ferring toApple CarPl ay™ ........ 188
Ve hicle height ................................... 271
Ve hicle length ................................... 271
Ve hicle width .................................... 271
Wheelbase ........................................2 71
Ve hicle data memory
Electronic control units ...................... 25
Service pr oviders .............................. .26324
Index