Display messages
Possible causes/consequences and 0050 0050Solutions
Fu rther information on there stra int sy stem and its components can
be found under "Occupant saf ety".
0075 Front left malfunction
Consult workshop (exa m‐
ple) *T
he cor responding restra int sy stem is malfunctioning. In addition,
th e0075 warning lamp on the instrument clus ter lights up. &
WARNING Risk of injury duetomalfunctions in there stra int
sy stem
Components in there stra int sy stem may be activated uninten‐
tionally or not deploy as intended in an accident. #
Have there stra int sy stem checked and repaired immedi‐
ately at a qualified specialist workshop. #
Consult a qualified specialist workshop immediatel y.
0075 Left windowbag malfunc-
tion Consult work-
shop (exa mp le) *T
he cor responding window airbag is malfunctioning. In addition, the
0075 warning lamp on the instrument clus ter lights up. &
WARNING Risk of injury orfata l injury due toa malfunction
in the windowbag
The windowbag might be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. #
Have the windowbag checked and repaired immediately at
a qu alified specialist workshop. #
Consult a qualified specialist workshop immediatel y. Driving sy
stems Display messages
Possible causes/consequences and 0050 0050Solutions
120 km/hM aximum
speed exceeded *F
or cer tain countries only: the maximum permissible speed has
been exceeded. #
Drive more slowly.
00AD
ATTENTION ASSIST inop-
erative *A
TTENTION ASSIST has failed. #
Consult a qualified specialist workshop.
ATTENTION ASSIST:
Take a break! *B
ased on cer tain criteria, ATTENTION ASSIST has de tected fatigue
or increasing lapses in concentration on the part of the driver.
A wa rning tone also sounds. #
If necessa ry,ta ke a break.
On long journe ys,ta ke regular and timely breaks that allow youto
re st properly.
Active Distance Assist
- - - km/h *A
n acti vation condition forAc tive Dis tance Assi stDISTRONIC has
not been fulfilled. Displ
aymessa ges and warning and indicator lamps 287
Display messages
Possible causes/consequences and 0050 0050Solutions
003B
inoperative Refuel vehi-
cle *T
here is too little fuel in the fuel tank.The hot-water auxiliary heater
(s ta tionary hea ter) cannot be switched on. #
Refuel theve hicle.
003B
inoperative See Owner's
Man. *T
he hot-water auxiliary heater (stationary hea ter) is malfunctioning. #
When theve hicle is stationary on a le vel sur face and the engine
has cooled down, make up tofour attem ptsto switch on the hot-
wate r auxiliary heater (stationary hea ter), wa iting se veral
minutes between each attem pt (/ page 128).
If th e hot-wate r auxiliaryheater (stationary hea ter) does not switch
on: #
Consult a qualified specialist workshop. Lights
Display messages
Possible causes/consequences and 0050 0050Solutions
0049
Left dipped beam (exa m‐
ple) *T
he cor responding light source is defective.
Ha ve defective LED lights replaced at a qualified specialist work‐
shop. #
Obser vethe no tes on changing a bulb (/ page111). #
Replace the defective bulb at the front (/ page112) or rear
(/ page 113).
% Ve
hicles with LED lights on the trailer: if the cur rent falls below
th e minimum of 50 mA, a display message may appear even
th ough the trailer lights are working proper ly.
Adaptive Main-beam
Assist inoperative *A
daptive Highbeam Assist is malfunctioning. #
Switch high beam on/off manually. #
Consult a qualified specialist workshop.
Adaptive Main-beam
Assist currently unavaila-
ble See Owner's Manual *A
daptive Highbeam Assist is deactivated and temp orarily inopera‐
tive.
The following causes are possible:
R The windsc reen is dirty in the camera's field of vision.
R Visibility is impaired due toheavy rain, snow or fog. #
Clean the windscreen.
When the sy stem de tects that the camera is fully operational,
th e display will show the message Adaptive Main-beam Assist
available again
Ad aptive Highbeam Assist is operational again.
Active Light System inop-
erative *T
he active light function is faulty. #
Consult a qualified specialist workshop. Display messages and
warning and indicator lamps 301
Display messages
Possible causes/consequences and 0050 0050Solutions
0049
AUTO lights inoperative *T
he light sensor is faulty. The automatic driving lights are malfunc‐
tioning. #
Swit chthe light functions on/off manually (/page105). #
Consul t aqualified specialist workshop.
Intell. Light System inop-
erative *T
he Intelligent Light Sy stem is malfunctioning. The lighting sy stem
re mains available without the Intelligent Light Sy stem functions. #
Consult a qualified specialist workshop.
0049
Malfunction See Own-
er's Manual *T
heexterior lighting is malfunctioning. #
Consult a qualified specialist workshop. Wa
rning and indicator lamps Indicator and
warning lamps on the instru‐
ment clus ter Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and warn‐
ing lamps may briefly light up or flash. This
behaviour is non-c ritical. These indica tor and
wa rning lamps indicate a malfunction only if they
light up or flash af terth e engine has been star ted
or during a journe y. Saf
ety sy stems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0075
Re stra int sy stem warning
lamp *The
redwa rning lamp forth ere stra int sy stem is on while the engine
is running.
The restra int sy stem is malfunctioning. &
WARNING Risk of injury duetomalfunctions in there stra int
sy stem
Components in there stra int sy stem may be activated unintention‐
ally or not deploy as intended in an accident. #
Have there stra int sy stem checked and repaired immediately
at a qualified specialist workshop. #
Pay attention tothe display messages. #
Drive on carefull y. #
Have there stra int sy stem and its components checkedby aqu ali‐
fi ed specialist workshop immediately.
Fu rther information on there stra int sy stem and its components can
be found under "Occupant saf ety". 302
Display messages and warning and indicator lamps
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0024
Indicator lamp for park‐
ing brake *The
red indicator lamp forth e parking brake flashes or is on and/or
th eye llow warning lamp forth e parking brake is on.
The parking brake is malfunctioning or the display sho wsan instruc‐
tion torelease the parking brake.
If only there d indicator lamp forth e parking brake lights up, the park‐
ing brake has been applied.
Pa y attention tothe display messages. Seat belt
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00E9
Seat belt warning lamp *The
red seat belt warning lamp lights up or flashes af terth e engine
has star ted. A warning tone may also sound.
Fo r cer tain countries only: The red seat belt warning lamp lights up
fo r a maximum of six seconds af terth e ignition has been switched on.
The seat belt warning lamp reminds the driver and front passenger to
fa sten their seat belts. #
Fasten your seat belt (/ page 30).
00E9
Seat belt warning lamp *The
redwa rning lamp forth e seat belt lights up af terth e engine
st arts as soon as the driver's or front passenger door has been
closed.
The driver's or front passenger's seat belt is not fastened. #
Fasten your seat belt (/ page 30).
The warning lamp will go out.
In vehicles with automatic front passenger airbag deactivation, there
are objects on the front passenger seat. #
Take the objects off the front passenger seat and stowthem in a
we ll-secured place.
The warning lamp will go out.
00E9 Seat belt warning lamp *The
red seat belt warning lamp flashes and an intermit tent wa rning
to ne sounds.
The driver's or front passenger's seat belt is not fastened. You are
driving at a speed greater than 25 km/h or ha vebriefly exceeded
25 km/h. #
Fasten your seat belt (/ page 30).
The warning lamp and the intermittent warning tone will go out.
In vehicles with automatic front passenger airbag actuation, there are
objects on the front passenger seat. You are driving at a speed
grea terth an 25 km/h or ha vebrief lyexceeded 25 km/h. #
Take the objects off the front passenger seat and stowthem in a
we ll-secured place.
The warning lamp and the intermittent warning tone will go out. 306
Display messa ges and warning and indicator lamps
Driving sy
stems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00BA
Wa rning lamp for dis‐
ta nce warning function *The
red dis tance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e selected
speed. #
Incre asethe dis tance totheve hicle in front.
00BA Wa rning lamp for dis‐
ta nce warning function *The
red dis tance warning lamp lights up while theve hicle is in motion.
A wa rning tone also sounds.
Yo u are approaching a vehicle or a stationary obs tacle on your antici‐
pated route at excessive speed. #
Beready toapply the brakes immediatel y. #
Pay careful attention tothe tra ffic situation. If necessar y,apply
th e brakes or avoid an obs tacle.
Yo u can find fur ther information about the dis tance warning function
in "Active Brake Assist" (/ page156). 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 is on while the engine is
ru nning. A warning tone also sounds.
The po wer assi stance forth esteering may be malfunctioning. Yo u
may need touse more forc eto steer. #
Carefully drive on toaqu alified specialist workshop and ha vethe
st eering checked immediatel y. Engine
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00B9
Engine diagnostics warn‐
ing lamp *The
yellow engine diagnostics warning lamp is on while the engine is
ru nning.
The remay be a malfunction in thefo llowing vehicle sy stems:
R engine management
R injection
R exhaust sy stem
R ignition sy stem (in vehicles with a petrol engine)
R fuel sy stem
This can cause the emissions limit values tobe exc eeded and the
engine torun in eme rgency mode. #
Have theve hicle checked immediately at a qualified specialist
wo rkshop. Display messages and
warning and indicator lamps 307
1,
2, 3 ...
4MATIC Function............................................. 14 6
12 V so cket
see Soc ket (12 V)
230 V so cket
see Soc ket (230 V)
360° Camera Care................................................... 229
Opening the camera co ver (r eve rs‐
ing camera)....................................... .169 A
ABS (anti-lock braking sy stem) ............ .154
Ac celeration
see Using kickdown
Ac oustic locking verification signal
Ac tivating/deactivating........................ 49
Ac tivating/deactivating air-recircu‐
lation mode ............................................ .124
Ac tive Brake Assi st
Ac tivating/deactivating...................... 157
Fu nction/no tes.................................. 15 6
Ac tive Di stance Assist DISTRO NIC
Calling up a speed.............................. 16 3
Displ ays.............................................. 16 4
Fu nction............................................. 16 2
Increasing/decreasing speed.............1 63
Re quirements:.................................... 16 3
Selecting............................................ 16 3
St eering wheel buttons.......................1 63
St oring a speed..................................1 63
Switching off/deactivating................. 16 3
Switching on/activating..................... 16 3
Sy stem limitations.............................. 16 2
Ac tive headlamps................................... 107
Ac tive Parking Assist
Exiting a parking space....................... 171
Fu nction............................................. 16 9
Pa rking............................................... 17 0
Sy stem limitations.............................. 16 9
Ad aptive
see Lane Keeping Assist
Ad aptive brake lights .............................158
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction............................................. 108
Switching on/of f................................ 109Ad
aptive Highbeam Assist Plus
Fu nction............................................. 109
Switching on/of f................................ 11 0
Ad Blue ®
Ad ditive...................................... 148, 272
Displ aying thefill le vel........................ 14 9
Filling capacity.................................. .273
Journe ysabroad................................ .138
No tes.................................................. 14 8
Purity.......................................... 148, 272
To pping up..........................................1 49
Ad d-on equipment ................................... .17
Ad d-on equipment guidelines................. 17
Ad diti ve
Ad Blue ®
...................................... 148, 272
Engine oil........................................... .273
Ad diti ves
Fu el....................................................2 70
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additive
Ad diti ves (fuel)
see Fuel
Af ter-sales service
see ASS YST PLUS service inter val display
Air recirculation but ton
Con venience opening/closing............ 12 5
Air suspension see AIRMATIC
Airbag Activation............................................ .27
Fr ont airbag (driver, co-driver).............. 31
Ins tallation locations............................ 31
Overview.............................................. 31
PA SSENGER AIR BAG indicator lamp... .34
Pr otection impaired.............................. 32
Pr otection pr ovided.............................. 32
Side airbag.......................................... .31
Wi ndow airba g...................................... 31
AIRM ATIC
Suspension........................................ .146
Alarm sy stem
see ATA (Anti -Theft Alarm sy stem)
Alertness assistant see ATTENTION ASSIST
All-wheel drive Notes.................................................. 14 6 Index
311
All-wheel drive
see 4MATIC
Ambient lighting Setting (MBUX multimedia sy stem)..... 111
Android Auto
see Smartphone integration
Animals Pets in theve hicle................................ 48
Anti-lock braking sy stem
see ABS (anti-lo ckbraking sy stem)
Anti-skid chains
see Snow chains
Anti-theft ala rmsystem
see ATA (Anti -Theft Alarm sy stem)
Anti-theft pr otection
Immobilise r.......................................... 66
Anti-theft pr otection
see ATA (Anti -Theft Alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
Anticipatory occupant pr otection
sy stem
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
Apple CarPlay ®
see Smartphone integration
Aq uaplaning............................................ 13 9
Armrest Stow age compartment......................... 97
Asht ray
Re ar passenger compartment............ 102
Use (front centre console).................. 101
Assistance graphic (on-board com‐
puter)...................................................... .183
Assistance sy stems
see Driving saf ety sy stem
ASS YST
see ASS YST PLUS service inter val display
ASS YST PLUS se rvice inter val display
Displaying the service due dat e......... 220
Fu nction/no tes.................................. 220
Non-ope rational times wi th the
battery disconnec ted.......................... 221
Re gular maintenance work................. 220
Special service requ irements............ .220
ATA (Anti-Theft Alarm sy stem)
Fu nction............................................... 67
Interior motion sensor function............ 68 Priming and deactivating
the inte‐
ri or motion sensor................................ 68
Priming and deactivating tow- aw ay
pr otection............................................. 67
St opping the alarm............................... 67
To w- aw ay protection function............... 67
At tachments............................................ .17
AT TENTION ASSI ST
Fu nction............................................. 172
Switching on/of f................................ 172
Sy stem limitations.............................. 172
Au thorised workshop
see Qualified specialist workshop
Au tomatic co-driver airbag shu toff
Fu nction of co-d rive r airbag shutoff..... 33
Au tomatic dipped beam ........................105
Au tomatic distance adjustment
see Active Dis tance Assi stDISTRONIC
Au tomatic engine start (ECO start/
sto p function)........................................ .140
Au tomatic engine stop (ECO start/
sto p function)........................................ .140
Au tomatic front passen ger front air‐
bag shu toff
PA SSENGER AIR BAG indicator lamp... .34
Au tomatic measures af ter an acci‐
dent........................................................... 36
Au tomatic transmission
DIRECT SELECT le ver......................... 14 2
Drive prog ram displa y......................... 14 5
Drive prog rams................................... 14 4
DY NA MIC SELECT switch................... 14 4
Engage pa rkposition.......................... 14 3
Engaging drive position...................... 14 3
Engaging neutral................................. 14 3
Engaging reve rsege ar....................... .143
Kickdown............................................ 14 5
Manual shifting................................... 14 5
Re stricting the shift rang e.................. 14 3
Selecting the drive prog ram............... 14 5
St eering wheel gearshift paddles.......1 45
Tr ansmission position displa y............. 14 2
Tr ansmission positions....................... 14 2
Au xiliary heating
No tes.................................................. 12 6
Au xiliary warm-air heater
Fu nction............................................. 13 0
Operating the switch clock................. 131
Overvie w,timer.................................. 13 0
Problems............................................ 13 4
Setting the switch-on time.................. 131312
Index
Switching on/off
byremo tecontrol... 13 2
Axle load ................................................ .268 B
Back support see Lumbar support (4-w ay)
Ball coupling Attach ing............................................ 17 7
Ball neck Removing........................................... .178
BA S (Brake Assist Sy stem)................... .154
Battery Care................................................... 237
Charging............................................. 237
Charging a vehicle batter y.................. 237
Connecting and fitting thest ar ter
battery................................................2 41
Disconnecting and removing the
st ar ter battery.................................... 239
Jump -star ting (vehicle)....................... 237
Ke y...................................................... .50
No tes (vehicle)................................... 235
Re mo tecontrol (s tationary heat‐
ing/ventilation).......................... 129, 13 3
Belt see Seat belt
Belt warning
see Seat belt
Blind Spot Assist Function.............................................. 174
Switching on/of f................................ 174
Sy stem limitations.............................. 174
Bottle holder........................................... 100
Brake ABS (anti-lock braking sy stem)........... 154
Ac tivating/deactivating the HOLD
function.............................................. 16 5
Ac tive Brake Assi st............................. 15 6
Ad aptive brake lights......................... .158
BA S (Brake Assi stSystem)................. 154
Braking with parking brake:................1 38
Downhill gradient............................... 13 8
Driving no tes.............................. 137, 13 8
EBD (Electronic Brakeforce Distri‐
bution)................................................ 15 6
Heavy and light loads........................ .138
HOLD function................................... .165
New brake discs and brake pads/
linings................................................. 13 8
New/replaced brake disks and
brakepads..........................................1 36Re
stricted braking ef fect (salt-trea‐
te dro ads).......................................... .138
Ru nning-in no tes................................ 13 6
We tro ad sur faces.............................. 13 8
Brake Assist System
see BAS (Brake Assi stSystem)
Brake Assistance see BAS (Brake Assi stSystem)
Brake fluid
No tes.................................................. 274
Brakeforce Dist ribution
EBD (Elect ronic Brakeforce Distri‐
bution)................................................ 15 6
Brakes Post-collision brake.............................. 36
Breakdown Changing a whee l............................... 259
Re covering theve hicle.......................2 44
To w starting........................................ 24 6
To wing away (bo thaxles on the
ground )...............................................2 44
To wing away (raised front or rear
axle )................................................... 24 5
Tr ansporting theve hicle..................... 24 5
Ve hicle stuck..................................... .244
Breakdown see Flat tyre
Buttons on the steering wheel .................. 8 C
Camera see Reversing camera
Car wash
see Care
Car wash (care)...................................... 227
Car-to-X-Communication Displaying hazard warnings................ 204
Care Automatic car wash............................ 227
Carpe t................................................ 230
Displ ay............................................... 230
Exterior lighting.................................. 229
High-pressure cleaner........................ 227
Instrument clu ster.............................. 230
Matt finis h.......................................... 228
Pa int.................................................. .228
Pla stic trim........................................ .230
Re alwo od/trim elements.................. 230
Re versing camera.............................. .229
Re versing camera/360° Camera....... 229
Ro of lining..........................................2 30 Index
313