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
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00B4
Fu elreser ve wa rning
lamp *The
yellow fuel reser ve wa rning lamp is on while the engine is run‐
ning.
The fuel supp lyhas dropped into there ser verange.
Ope ration of the auxiliary heating (s tationary hea ter) is deactivated in
th ere ser verange. #
Refuel theve hicle.
00AC
Coolant warning lamp *
The red coolant warning lamp is on while the engine is running and
th e coolant temp erature display is at thest art of the scale.
The temp erature sensor forth e coolant temp erature display is defec‐
tive.
The coolant temp erature is no longer being monitored. If the coolant
is too hot, the engine may be damaged. #
Stop immediately in accordance with the traf fic conditions and
switch off the engine. Do not continue driving! #
Secure theve hicle against rolling away. #
Consult a qualified specialist workshop.
00AC
Coolant warning lamp *T
he red coolant warning lamp is on while the engine is running.
The coolant le vel is too lo w.
If th e coolant le vel is cor rect, the air supply tothera diator may be
impaired or thera diator's electric fan may be faulty.
The coolant is too hot and the engine is not being adequately cooled. #
Pay attention tothe display messages. #
Stop immediately in accordance with the traf fic conditions and
switch off the engine. #
Secure theve hicle against rolling away. #
Exit theve hicle and keep a safe dis tance from it until the engine
has cooled down. #
Check the coolant le vel and top up with coolant, complying with
th e instructions (/ page 225). #
Ifth e coolant has tobe topped up frequentl y,ha ve the engine
cooling sy stem checked at a qualified specialist workshop. #
Ensure that the air supply tothera diator is not impaired, e.g. by a
plastic bag that has been blown onto the grille. #
Monitor the coolant temp erature display on the instrument clus‐
te r. #
Do not restart the engine until the coolant temp erature is below
12 0°C. If you do, the engine may be damaged. #
Drive on tothe nearest qualified specialist workshop. Avoid high
engine loads, e.g. driving on hilly roads or stop-and-go driving.
00AC Coolant warning lamp *The
red coolant warning lamp is on while the engine is running. A
wa rning tone also sounds.
The coolant has exceeded thete mp erature of 120°C. The air supply
to thera diator may be impaired or the coolant le vel may be too lo w.
The engine has not been suf ficiently cooled and may be damaged. 308
Display messages and warning and indicator lamps
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions &
WARNING Risk of burn s when opening the bonn et
If yo u open the bonn etwhen the engine has overheated or when
th ere is a fire inthe engine compartment, thefo llowing situations
may occur:
R You could come into con tact with hotgases.
R You could come into con tact with other hot, escaping operat‐
ing fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the
bonn etclosed and call thefire service. #
Pay attention tothe display messages. #
Stop immediately in accordance with the traf fic conditions and
switch off the engine. #
Secure theve hicle against rolling away. #
Exit theve hicle and keep a safe dis tance from it until the engine
has cooled down. #
Check the coolant le vel and top up with coolant, complying with
th e instructions (/ page 225). #
Ifth e coolant has tobe topped up frequentl y,ha ve the engine
cooling sy stem checked at a qualified specialist workshop. #
Ensure that the air supply tothera diator is not impaired, e.g. by a
plastic bag that has been blown onto the grille. #
Monitor the coolant temp erature display on the instrument clus‐
te r. #
Ifth e coolant temp erature is below 120°C, you can continue driv‐
ing tothe nearest qualified specialist workshop. #
Avoid high engine loads, e.g. driving on hilly roads or stop-and-go
driving. Ty
res Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0077
Ty re pressure monitoring
sy stem warning lamp *The
yellow tyre pressure monitoring sy stem warning lamp (pressure
loss/malfunction) is on.
The tyre pressure monitoring sy stem has de tected a loss of pressure
in at least one tyre. Display messages and
warning and indicator lamps 309
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions &
WARNING Risk of an accident due toinsuf ficient tyre pres‐
sure
R The tyres can burs t.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering and braking
may be greatly impaired.
Yo u could then lose cont rol of theve hicle. #
Obser vethere commended tyre pressu res. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle without steering or braking suddenl y.Pa y atten‐
tion tothe tra ffic conditions. #
Secure theve hicle against rolling away. #
Pay attention tothe display messages. #
Check the tyres and, if necessar y,replace the wheel
(/ page 259). #
Check the tyre pressure .
In vehicles with steering-wheel buttons, you can check the tyre pres‐
sure electronically (/ page 255). #
Correct the tyre pressure as necessar y.
0077
Ty re pressure monitoring
sy stem warning lamp *The
yellow tyre pressure monitoring sy stem warning lamp (pressure
loss/malfunction) flashes for appro ximately one minute and then
re mains lit.
The tyre pressure monitoring sy stem is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure
monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if
th ere is pressure loss in one or more of the tyres.
Ty res with insuf ficient tyre pressu remay impair the driving char‐
acteristics as well as steering and braking. #
Have the tyre pressure monitoring sy stem checked at a
qu alified specialist workshop. #
Pay attention tothe display messages. #
Consult a qualified specialist workshop. 310
Displaymessa ges and warning and indicator lamps
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