
Display messages
Possible causes/consequences and M
MSolutions
h Wheel sensor(s) missing *T
here is no signal from the tyre pressure sensor of one or more wheels. The pressure of the af fected tyre is not
displ ayed. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop.
Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. #
Fit wheels with suitable tyre pressure sensors.
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is faulty. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure
loss in one or more of the tyres.
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop.
Tyre(s) overheated *A
t least one tyre is overheated. The af fected tyres are displ ayed in red. At temp eratures close tothe limit value, the
tyres are displa yed in yello w. #
Drive more sl owly. 476
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Air conditioning Malfunc-
tion See Owner's Manual *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode. #
Have the climate control sy stem checked at a qualified specialist workshop.
_ Before starting the engine,
turn the steering wheel. *
Ve hicles with manual transmission: the electric steering lock was unable tounlo ckthesteering. #
Switch the ignition off. #
Tounlo ckthesteering, mo vethesteering wheel slightly tothe left and right. #
Switch the ignition back on.
Ð Steering malfunction See
Owner's Manual *
Ve hicles with manual transmission: the electric steering lock is malfunctioning. The steering may be loc kedby
th e electric steering loc k. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 485

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
J Brake sy stem warning lamp The
red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
R The reis insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Thereis a risk of an accident if brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, the wheels may lock when braking. Braking characteristics may be
impaired. The braking dis tance may increase in an eme rgency braking situation. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop.
Do not top up the brake fluid. 496
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop.
! ABS warning lamp The
yellow ABS warning lamp is lit while the engine is running.
ABS is malfunctioning.
If th ere is an additional acoustic warning signal, EBD is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be faulty. &
WARNING Thereisrisk of skidding if EBD or ABS is malfunctioning
If EBD or ABS is malfunctioning, the wheels could lock when braking
The steering capability and braking characteristics are thus se verely impaired. The braking dis tance may increase in
an emergency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 497

Au
tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .139
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 2
Drive program display .......................... 161
Drive programs .................................... 16 0
DY NA MIC SELECT switch .................... 16 0
Engaging drive position ....................... 16 4
Engaging reve rsege ar ........................ .164
Kickdown ............................................. 16 5
Manual gearshifting ............................ .165
Selecting park position ........................ 16 4
Shifting toneutral ................................ 16 4
St eering wheel gearshift paddles ........ .165
Tr ansmission position display .............. 16 2
Tr ansmission positions ........................ 16 2
Au tomatic transmission
see Selector le ver
Axle load Perm issible .......................................... 423
Tr ailer operation .................................. 436 B
Ball neck Extending/r etra cting ........................... 238
BA S (Brake Assist Sy stem) .................... .181
Battery Key ........................................................ 66
Re mo tecontrol (s tationary heater) ...... 14 9
Battery (vehicle) Charging .............................................. 389
Notes ................................................... 387
St arting assis tance .............................. 389
Battery (vehicle) see Vehicle battery
Belt .............................................................32
Belt airbag Activation .............................................. 31
Fu nction/no tes .....................................35
Bic ycle rack
Tr ailer operation .................................. .241
Blind Spot Assi st..................................... 232
Ac tivating/deactivating ...................... .234
Fu nction/no tes ................................... 232
Sy stem limits ....................................... 232 Blind Spot Assist
see Active Blind Spot Assi st
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
Ac tivating/deactivating ...................... .278
Setting up an Internet connection ....... 330
Settings ............................................... 277
Switching profile (DUN/PAN) .............. 332
Blue tooth ®
Au dio
Ac tivating ............................................ 349
De-authorising (de-regis tering) the
device .................................................. 349
Information .......................................... 346
Overview .............................................3 47
Sea rching for and auth orisingthe
device .................................................. 348
Switching device via NFC .................... 349
Boot box see EASY -PAC K boot box Index
513

Boot lid
....................................................... 73
Ac tivating/deactivating the boot lid
opening limiter ...................................... 78
Closing .................................................. .74
HANDS-FREE ACCESS .......................... .76
Loc ked separately .................................77
Opening .................................................73
Opening dimensions ............................4 33
Boot lid see Boot lid
see Locking/unlocking
Boot load ................................................. .434
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid
No tes ................................................... 431
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 184
Brakes ABS (Anti-lock Braking Sy stem) ........... 180
Ad aptive brake lights .......................... .190
BA S (Brake Assi stSystem) ...................1 81
Driving tips .......................................... 15 6EBD (Electronic Brake
forc e Distribu‐
tion) ..................................................... 184
HOLD function .................................... .203
Limi ted braking ef fect (salt-trea ted
ro ads) .................................................. 15 6
New/replaced brake linings/brake
discs .................................................... 15 6
Ru nning-in no tes ..................................1 56
Brakes see Active Brake Assi st
Braking assistance see BAS (Brake Assi stSystem)
Breakdown ............................................... 381
Assis tance overview .............................. 18
To w- starting ........................................ 397
To wing away ........................................ 393
Tr ansporting theve hicle ......................3 95
Wheel change ...................................... 414
Breakdown assistance call see Service call
Breakdown management see Service call Burmes
ter®
high-end 3D sur round
sound sy stem
Ad justing the balance/fader ................3 61
Ad justing the sound optimisation ........ 362
Ad justing treble, mid and bass ............ 361
Calling up the sound menu .................. 361
Information .......................................... 361
Setting the sound profile ..................... 362
Burmes ter®
sur round sound sy stem .....3 60
Ad justing the balance/fader ................3 61
Ad justing the sound focus ................... 361
Ad justing treble, mid and bass ............ 361
Calling up the sound menu .................. 360
Information .......................................... 360
Switching the sur round sound on/off
............................................................ .361
Buttons Steering wheel .....................................2 45 C
CA module (TV) ........................................ 360
Calling up a menu ................................ 360
Inse rting .............................................. 359 514
Index

Call list
Making a call ........................................ 314
Options in the call list .......................... 314
Overview ..............................................3 14
Calling up the sound menu
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 361
Burmes ter®
sur round sound sy stem ... 360
Calls ..........................................................3 11
Ac cepting ............................................. 311
Ac tivating functions du ring a call ......... 311
Calls with se veral participants ............ .311
Declining .............................................. 311
Ending a call ......................................... 311
Incoming call during an existing call .... 312
Making .................................................3 11
Vi ath eove rhead control panel
(Mercedes me connect) ....................... 317
Camera see 360° Camera
see Reversing camera
Car wash
see Care
Car wash (care) ........................................3 71Care
.......................................................... .376
AIR PANEL ............................................ 374
Car wash ..............................................3 71
Carpet .................................................. 376
Displ ay................................................. 376
EAS Y-PA CK boot box ............................ 376
Exterior lighting ................................... 374
Genuine wood/trim elements .............. 376
High-pressu recleaner .......................... 371
Matt finish ........................................... 373
Pa int .................................................... 373
Plastic trim .......................................... 376
Re versing camera/360° Camera ........ 374
Ro of lining ............................................ 376
Seat belt .............................................. 376
Seat co ver ........................................... 376
Senso rs............................................... 374
Ta ilpipes .............................................. .374
Tr ailer hit ch.......................................... 374
Wa shing byhand ................................. 372
Wheels/rims ........................................3 74
Wi ndo ws .............................................. 374
Wi per blades ........................................ 374
Carpet (Care) ............................................ 376Changing bulbs
........................................ 131
Dipped beam ....................................... 13 2
Fitting/removing co ver (front wheel
ar ch ) .................................................... 13 2
Main beam ...........................................1 32
No tes ................................................... 131
Opening/closing the side trim pan‐
els .......................................................1 33
Overview .............................................. 131
Re versing light .................................... .133
Tu rn signal light (front) ........................ 13 2
Tu rn signal light (rear) .......................... 13 3
Changing hub caps .................................. 414
Channel tracking Setting ................................................ .352
Charging Battery (vehicle) .................................. 389
Child saf ety lock
Re ar door .............................................. .61
Re ar side wind ows ................................. 63
Child seat ................................................... 45
At tach ing (no tes) ................................... 52
Fr ont passenger seat (no tes) ................. 50 Index
515

Fr
ont passenger seat (rear ward-
fa cing/for ward-facing) .......................... 52
Fr ont passenger seat (without airbag
shutoff) .................................................. 51
ISOFIX/i-Size (fitting) ............................ 48
ISOFIX/i-Size (no tes) ............................. 47
No tes ..................................................... 45
Re commended child restra int sys‐
te ms ...................................................... 59
Seats suita blefor belt-secu redch ild
re stra int sy stems ................................... 53
Seats suitable for i‑Size child
re stra int sy stems ................................... 58
Seats suitable for ISOFIX child
re stra int sy stems ................................... 56
To pTe ther ..............................................49
Child ren
Re stra int sy stems ..................................45
Chock Storage location ................................... 413
Chock see Wheel chock
Cigar ette lighter ...................................... .118
City lighting .............................................. 12 8Cleaning
see Care
Climate control ........................................ 141
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .143
Ac tivating/deactivating the A/C
function (multimedia sy stem) .............. 14 3
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 14 4
Ac tivating/deactivating the synchro‐
nisation function (multimedia sys‐
te m) ..................................................... 14 4
Ad justing the air vents ......................... 151
Air di stribution settings .......................1 43
Air-recirculation mode ......................... 14 4
Au tomatic control ................................ 14 3
Climate style function .......................... 14 3
Demi sting the windo ws....................... 14 4
Demi sting the windscreen ...................1 41
Glo vebox air vent ................................ 151
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 14 5
ionisation ............................................ .145
Re ar air vents ....................................... 151
Re ar operating unit .............................. 141Re
sidual heat ....................................... 14 4
Setting the air distribution ...................1 41
Setting the air flow ............................... 141
Setting the climate style ......................1 43
Setting the fragrance sy stem ............... 14 5
Setting thete mp erature ....................... 141
St ationary heater/ ventilation .............. 14 6
Switching on/off ................................. 14 2
Switching there ar wind owheater
on/off .................................................. 141
THERMATIC contro l panel .................... 141
THERMOTRONIC contro l panel ............141
Wi ndsc reen heater .............................. 14 6
Climate style
Fu nction .............................................. 14 3
Setting ................................................. 14 3
Cockpit ........................................................ .6
Overview .................................................6
COMAND Online see Multimedia sy stem
COMAND Touch ....................................... 281
Auth orising a device ............................2 80
Child saf ety lock .................................. 281 516
Index