
Display messages
Possible causes/consequences and M
MSolutions
j Check trailer hitch lock *T
he trailer hitch is not operational when you are driving with a trailer. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Uncouple the trailer and safeguard it against rolling away. #
Initiate a new swivelling procedure . #
Ifth e ball neck is extended, press and hold the button on the boot lid until the ball neck engages beneath the
bumper. #
When the display message disappears, couple up the trailer and drive on. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. #
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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. If
th e display message does not disappear, the trailer hitch is defective and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. #
Consult a qualified specialist workshop.
The trailer hitch is not operational when theve hicle is at a standstill. 424
Display messages and warning/indicator lamps

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
j Tr ailer hit chwarning lamp The
red trailer hitch warning lamp is on.
The trailer hitch is not operational or swivels. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. #
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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. #
Obser vethe messages in the multifunction displa y.
If th e trailer hitch swivels: #
Wait until the ball neck has reached the operational position. Display messages and
warning/indicator lamps 449

Seats suitable
for belt-secu redch ild
re stra int sy stems ................................... 55
Seats suitable for i‑Size child
re stra int sy stems ................................... 60
Seats suitable for ISOFIX child
re stra int sy stems ................................... 58
To pTe ther ..............................................51
Child seat see i-Size child seat securing sy stem
see ISOFIX child seat securing sy stem
Child-sa fety lock
Re ar door .............................................. 63
Child ren
Re stra int sy stems ..................................46
Chock ...................................................... .356
St orage location ..................................3 56
Cigar ette lighter
Fr ont centre console ............................ 121
City lighting ............................................ .132
Cleaning see Care Climate control
........................................ 147
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .149
Ac tivating/deactivating the A/C
function (multimedia sy stem) .............. 14 9
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 15 0
Ac tivating/deactivating the synchro‐
nisation function (multimedia sys‐
te m) ..................................................... 15 0
Air di stribution settings .......................1 50
Air-recirculation mode ......................... 15 0
Au tomatic control ................................ 14 9
Climate style function .......................... 14 9
Demi sting the windo ws....................... 15 0
Demi sting the windscreen ...................1 47
Fr agrance sy stem ................................ 151
Fr ont air vents ..................................... 157
Glo vebox air vent ................................ 15 8
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 151
ionisation ............................................ .151
No te ..................................................... 147
Re ar air vents ...................................... 15 8
Re ar operating unit .............................. 147
Re sidual heat ....................................... 151Setting
the air distribution ...................1 47
Setting the air flow ............................... 147
Setting the climate style ......................1 49
Setting thete mp erature ......................1 47
St ationary heater/ ventilation .............. 15 3
Switching on/off ................................. 14 8
Switching there ar wind owheater
on/off .................................................. 147
THERMATIC contro l panel .................... 147
THERMOTRONIC contro l panel ............147
Ve ntilating theve hicle (con venience
opening) ................................................ 84
Wi ndsc reen heater .............................. 15 2
Climate style
Fu nction .............................................. 14 9
Setting ................................................. 14 9
Cockpit ........................................................ .6
Overview .................................................6
Combination switch see Turn signal light
Computer On-board computer ............................. 253
Connection status
Displ ays ............................................... 295 462
Index

Gearshift paddles
see Steering wheel gearshift paddles
Gea rshift recommendation .............171,174
Genera l operating permit number
(EU) .......................................................... .366
Genuine parts ............................................ 22
Genuine wood (Care) .............................. .319
Glide mode ............................................... 175
Glo vebox
Air vent ................................................ 15 8
Locking/unlocking .............................. 109
Gross weight .......................................... .366 H
Handbrake see Electric parking brake
Handling characteristics (unusual) ....... 344
HANDS-FREE ACCESS ................................ 79
Haza rdwa rning lights ............................ .130
Head restra int .......................................... .99
Fr ont (adjusting manually) ..................... 99
Fr ont (luxury head restra int) ................ 100Re
ar (adjusting) .................................. .101
Re ar (fitting/removing) ........................ 101
Head-up display ....................................... 261
Ad justing brightness (on-board com‐
pu ter) ................................................... 261
Ad justing display elements (on-board
compu ter) ............................................ 261
Fu nction .............................................. 262
Menu (on-board compu ter) .................. 261
Setting the position (on-board com‐
puter) ................................................... 261
Switching on/off ................................. 263
Using the memory function ................. 106
Headlamp flasher ................................... .129
Heating see Clima tecontrol
High-pressure cleaner (care) ..................314
Hill Start Assist ........................................ 211
HOLD function ......................................... 212
Ac tivating/deactivating ...................... .212
Fu nction/no tes .................................... 212
Hooking the luggage net .........................114 I
i-Size child seat securing sy stem ............ 49
Fitting .................................................... 50
No tes ..................................................... 49
Seats suitable for attaching ................... 60
Identification plate Engine ................................................. 366
Vehicle ................................................ 366
Ignition Switching on (S tart/S top button) ........ 15 9
Ignition key
see Key
Immobiliser ................................................ 91
Implied warranty
Ve hicle ................................................... 27
Inat tentiveness assistant
see ATTENTION ASSIST
Indicator lamp see Warning/indicator lamps
Individual drive prog ram
Con figuring .......................................... 17 0
Selecting ............................................. 17 0472
Index

Instrument clus
ter
see Instrument Display
see Warning/indicator lamps
Instrument Display .................................. 251
Ad justing the lighting .......................... 255
Fu nction/no tes .................................... 251
Overview ........................................1 0, 251
Wa rning/indicator lamps .................... 438
Instrument lighting .................................255
Intelligent Light Sy stem .......................... 13 0
Ac tive headla mps function ...................1 31
Ad aptive Highbeam Assist Plus .......... .134
Ad versewe ather light .......................... 13 2
City lighting ........................................ .132
Cornering light ..................................... 131
Fo g light (extended range) ................... 13 2
Mo torw ay mode ................................... 131
Overview ............................................. 13 0
Switching on/off ................................. 13 2
Interior lighting ........................................ 13 6
Ambient lighting .................................. 13 6
Setting ................................................. 13 6
Switch-off del aytime ........................... 13 6Interior lighting
see In terior lighting
see Lighting
see Lights
Interior pr otection
Fu nction ................................................ 93
Switching on/o ff................................... 93
In tern etconnection
Cancelling permission ........................ .294
Closing ................................................ 294
Connection status .............................. .295
Displ aying the connection status ........ 295
Editing access data ............................ .294
Es tablishing .........................................2 94
Mobile phone de tails .......................... .294
Re strictions ......................................... 293
Setting access da ta............................. 293
Setting up ............................................ 293
Ionisation .................................................. 151
ISOFIX child seat securing sy stem .......... 49
Fitting .................................................... 50
No tes ..................................................... 49
Seats suitable for attaching ................... 58 J
Jack Declaration of Conformity .................... .24
St orage location ..................................3 56
Jump-start connection ............................ 332 K
Ke y.............................................................. 67
Battery .................................................. 69
Emer gency key element ........................ 69
Energy consum ption .............................. 68
Fe atures ................................................ 67
Ke yring attachment .............................. 69
Overview ................................................ 67
Pa nic alarm ........................................... 68
Problem ................................................ .70
Un locking setting .................................. 68
KEYLESS-GO Locking theve hicle ................................ 73
Problem .................................................74
Un locking setting .................................. 68
Un locking theve hicle ............................73
Kickd own.................................................. 175
Using ................................................... 175 Index
473

Loads
Securing .............................................. 107
Locator lighting Swit ching on/off ................................ .135
Lock ing/unlocking
Ad ditional door lock ...............................71
Digital Car Keyst icke r ........................... 72
KEYLESS-GO .......................................... 73
Mobile phone ......................................... 72
Smartphone ........................................... 72
Un locking/opening the doors from
th e inside ............................................... 71
Lu bricant additives
see Additives
Lu ggage
Lu ggage net ......................................... 11 4
Secu ring .............................................. 107
Lu mbar support
see Lumbar support (4-w ay)
Lu mbar support (4-w ay).......................... .99 M
Main beam Activating/deactivating ...................... .129
Ad aptive Highbeam Assist .................. .132
Ad aptive Highbeam Assist Plus .......... .134
Changing bulbs ................................... .138
Maintenance see ASS YST PLUS
Malfunction Restra int sy stem ................................... 32
Manual transmission Operating thege arshift le ver ............... 17 0
Matt finish (cleaning instructions) .........316
Maximum gross vehicle weight ............ .366
Maximum speed see Limi ter
MB Info call see Service call
Media Menu (on-boa rdcompu ter) .................. 260
Sear ching ............................................ 298 Media Inter
face
In fo rm ation .......................................... 298
Overview ............................................ .299
Switching on ....................................... 299
Media mode Activating ............................................ 296
Media playba ck
Operating (on-board computer) ........... 260
Media sear ch
St arting .............................................. .298
Media source Dialling (on-boa rdcompu ter) ............... 260
Memory function Head-up display — Calling up sa ved
settings ............................................... 106
Head-up Display — Saving settings ...... 106
Operating ............................................ 106
Outside mir ror — Calling up sa ved
settings ............................................... 106
Outside mir ror — Saving settings ......... 106
Seat — Calling up sa ved settings .........1 06
Seat — Saving settings ......................... 106
St eering wheel — Calling up sa ved
settings ............................................... 106 Index
475

Te
ch nical data
Axle load (trailer operation) ................. 380
Fa stening point (trailer hitch) ............... 378
Information ..........................................3 64
Mounting dimensions (trailer hitch) ..... 378
No tes (trailer hitch) ............................. 378
Overhang dimension (trailer hitch) ...... 378
To ngue weight .................................... .379
To wing weight (t owing a trailer) .......... .379
Ty re pressure monitoring sy stem ........ 349
Ve hicle identification plate .................. 366
Te lephone ........................................ 260, 277
Ac tivating functions du ring a call ........ 282
Au thorising a mobile phone (Remo te
Pa rking Assist) .................................... 236
Calls with se veral participants ............ .282
Connecting a mobile phone (Pass‐
ke y) .................................................... .279
Connecting a mobile phone (Secu re
Simple Pairing) .................................... 279
Disconnecting a mobile phone ............ 280
Incoming call du ring an existing call .... 283
Information .......................................... 279
Locking theve hicle (mobile phone) .......72
Menu (on-board computer) .................. 260 No
tes ................................................... 278
Re ception and transmission volume .... 280
St arting theve hicle (mobile phone) ..... 161
Switching mobile phones .................... 280
Te lephone menu overview ...................2 77
Te lephone operation ............................ 282
Un locking theve hicle (mobile phone) ....72
Wi reless charging (mobile phone) ........ 12 5
Te lephone number
Dialling (on-board computer) .............. .260
Te lephone operation
see Calls
Te mp erature ............................................ .147
Te xt messages
see Messages
Through-loading feature
see Seat
Ti e-d owney es .......................................... .113
Time Manual time setting ............................. 274
Setting summer time ........................... 273
Setting the time and date automati‐
cally ..................................................... 273Setting
the time zone .......................... 273
Setting the time/date form at .............. 274
TIREFIT kit ................................................ 326
Declaration of Conformity ..................... 25
St orage location ..................................3 26
Using ................................................... 326
To ne settings ...........................................3 04
Ad justing the balance/fader ............... 304
Ad justing treble, mid and bass ............ 304
Calling up the sound menu .................. 304
Information .......................................... 304
To ngue weight ........................................ .379
To ol
see Vehicle tool kit
To pTe ther .................................................. .51
To tal di stance recorder .......................... .257
Displ aying ............................................ 257
To uch Control
On-board computer ............................. 253
Operating ............................................ 265
Setting the sensitivity .......................... 266
To uchpad
Operating ............................................ 267 Index
485