Central MERCEDES-BENZ M-Class 2015 W166 Owner's Manual

Cargo net
Attaching ...................................... .342
Important safety information ......... 342
Cargo tie down rings ......................... 339
Car key see SmartKey
CD player/CD changer (on-board
computer) .......................................... 273
Center console Lower section .................................. 39
Upper section .................................. 38
Central locking
Automatic locking (on-board com-
puter) ............................................. 279
Locking/unlocking (SmartKey) ....... .80
Changing bulbs
Brake lamps .................................. .132
High-beam headlamps ................... 131
Low-beam headlamps .................... 130
Parking lamps ................................ 131
Side marker lamps ......................... 131
Standing lamps (front) ................... 131
Child-proof locks
Important safety notes .................... 66
Rear doors ....................................... 66
Children
In the vehicle ................................... 61
Restraint systems ............................ 62
Special seat belt retractor .............. .61
Child seat
Forward-facing restraint system ...... 65
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
On the front-passenger seat ............ 65
Rearward-facing restraint system .... 65
Top Tether ...................................... .64
Cigarette lighter ................................ 348
Cleaning Mirror turn signal .......................... .375
Trailer tow hitch ............................ .376
Climate control
Automatic climate control (3-
zone) .............................................. 142
Controlling automatically .............. .146
Cooling with air dehumidification .. 144
Defrosting the windows ................. 150
Defrosting the windshield .............. 149 Dual-zone automatic climate con-
trol ................................................. 139
General notes ................................ 138
Indicator lamp ................................ 146
Information about using auto-
matic climate control ..................... 144
Maximum cooling .......................... 149
Overview of systems ..................... .138
Problems with cooling with air
dehumidification ............................ 146
Problem with the rear window
defroster ........................................ 151
Rear control panel ......................... 142
Refrigerant ..................................... 455
Refrigerant filling capacity ............. 455
Setting the air distribution ............. 148
Setting the airflow ......................... 148
Setting the air vents ..................... .152
Setting the climate mode (AIR
FLOW) ............................................ 147
Setting the temperature ................ 147
Switching air-recirculation mode
on/off ............................................ 151
Switching on/off ........................... 144
Switching residual heat on/off ...... 151
Switching the rear window
defroster on/off ............................ 150
Switching the ZONE function on/
off ................................................. .149
Climate control system
Automatic engine start .................. 163
Automatic engine switch-off .......... 162
Deactivating/activating ................. 163
General information ....................... 162
Important safety notes .................. 162
Introduction ................................... 162
Coat hooks ......................................... 342
Cockpit Overview .......................................... 34
see Instrument cluster
COLLISION PREVENTION ASSIST
Operation/notes .............................. 70
COMAND
ON&OFFROAD menu ..................... 255
see separate operating instructions
COMAND display
Cleaning ......................................... 377 Index
7

Distance warning function
Activating/deactivating ................ .275
Function/notes ................................ 70
Warning lamp ................................. 330
DISTRONIC PLUS
Activating ....................................... 200
Activation conditions ..................... 200
Cruise control lever ....................... 200
Deactivating ................................... 204
Display message ............................ 309
Displays in the multifunction dis-
play ................................................ 205
Driving tips ................................... .205
Function/notes ............................ .198
Important safety notes .................. 199
Setting the specified minimum
distance ......................................... 203
Warning lamp ................................. 330
Doors
Automatic locking (on-board com-
puter) ............................................. 279
Automatic locking (switch) .............. .88
Central locking/unlocking
(SmartKey) ...................................... .80
Control panel .................................. .42
Display message ............................ 316
Emergency locking ........................... 88
Emergency unlocking ....................... 88
Important safety note s.................... 86
Opening (from inside) ...................... 87
Overview .......................................... 86
Power closing feature ...................... 88
Downhill speed regulation
see DSR (Downhill Speed Regulation)
Drinking and driving ......................... 186
Drive program Automatic ...................................... 173
Display (DIRECT SELECT lever) ...... 168
Manual ........................................... 173
Manual (AMG vehicles) .................. 174
Manual (vehicles with the
ON&OFFROAD package) ................ 174
Off-road program (vehicles with
the ON&OFFROAD package) .......... 251
SETUP (on-board computer) .......... 281
see On-road programs Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 371
Symmetrical low beam .................. 120
Driving in mountainous terrain
Approach/departure angle ............ 194
Driving lamps
see Daytime running lamps
Driving off-road
see Off-road driving
Driving safety systems
ABS (Anti-lock Braking System) ....... 68
ADAPTIVE BRAK E............................. 75
Adaptive Brake Assist ...................... 71
BAS (Brake Assist System) .............. 68
BAS PLUS (Brake Assist System
PLUS) ............................................... 69
COLLISION PREVENTION ASSIST .... 70
Distance warning function ............... 70
EBD (electronic brake force distri- bution) ............................................. 75
ESP ®
(Electronic Stability Pro-
gram) ............................................... 72
ETS/4ETS (Electronic Traction
System) ........................................... 72
Important safety information ........... 67
Overview .......................................... 67
PRE-SAFE ®
Brake ............................. 75
STEER CONTROL ............................. 77
Driving systems
360°camera .................................. 229
Active Blind Spot Assist ................. 241
Active Curve System ...................... 212
Active Driving Assistance pack-
age ................................................. 241
Active Lane Keeping Assist ............ 244
Active Parking Assist ..................... 220
ADS ............................................... 212
AIRMATIC package ........................ 211
AMG adaptive sport suspension
system ........................................... 215
ATTENTION ASSIST ........................ 233
Blind Spot Assist ............................ 237
Cruise control ................................ 195
Display message ............................ 304
DISTRONIC PLUS ........................... 198 Index
9

Loading guidelines
............................ 334
Locking see Central locking
Locking (doors)
Automatic ........................................ 88
Emergency locking .......................... .88
From inside (central locking but-
ton) .................................................. 87
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 279
Low-beam headlamps Changing bulb s.............................. 130
Display message ............................ 297
Setting for driving abroad (sym-
metrical) ........................................ 120
Switching on/of f........................... 121
LOW RANGE
Display message ............................ 306
Off-road gear ................................. 253
LOW RANGE off-road gear ................ 253
Luggage holder (EASY-PACK load-
securing kit) ....................................... 343
Lumbar support Adjusting (on the seat) .................. 108
Luxury head restraints ..................... 107M
M+S tires ............................................ 402
Malfunction message see Display messages
Matte finish (cleaning instruc-
tions) .................................................. 374
mbrace Call priority .................................... 356
Display message ............................ 291
Downloading destinations
(COMAND) ..................................... 356
Downloading routes ....................... 359
Emergency call .............................. 353
General notes ................................ 352
Geo fencing ................................... 360
Locating a stolen vehicle ............... 358
MB info call button ........................ 355
Remote vehicle locking .................. 358 Roadside Assistance button .......... 354
Search & Send ............................... 357
Self-test ......................................... 353
Speed alert .................................... 360
System .......................................... 353
Triggering the vehicle alarm ........... 360
Vehicle remote malfunction diag-
nosis .............................................. 359
Vehicle remote unlocking .............. 358
Mechanical key
Function/note s................................ 82
Inserting .......................................... 83
Locking vehicle ................................ 88
Removing ......................................... 82
Unlocking the driver's door .............. 88
Media Interface
see Separate operating instructions
Memory card (audio) ......................... 273
Memory function ............................... 116
Message memory (on-board com-
puter) .................................................. 284
Mirrors see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............ 273
Modifying the programming
(SmartKey) ........................................... 81
MOExtended tires .............................. 383
Mounting wheels Lowering the vehicle ...................... 428
Mounting a new whee l................... 427
Preparing the vehicle ..................... 424
Raising the vehicl e......................... 425
Removing a whee l.......................... 427
Securing the vehicle against roll-
ing away ........................................ 424
MP3
Operation ....................................... 273
see separate operating instructions
Multifunction display
Function/note s............................. 268
Permanent display ......................... 277
Multifunction steering wheel
Operating the on-board compute r..2 67
Overview .......................................... 37 14
Index

Important safety guidelines .............46
Introduction .....................................46
Releasin g......................................... 49
Switching belt adjustment on/off
(on-board computer) ...................... 280
Warning lamp ................................. 318
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) ................... 106
Adjusting the head restraint .......... 106
Cleaning the cover ......................... 378
Correct driver's seat position ........ 104
Folding the rear bench seat for-
wards/back ................................... 337
Important safety notes .................. 105
Overview ........................................ 105
Seat heating problem .................... 110
Seat ventilation problem ................ 111
Storing settings (memory func-
tion) ............................................... 116
Switching seat heating on/of f....... 109
Switching seat ventilation on/of f.. 110
Securing hooks .................................. 340
Selector lever Cleaning ......................................... 378
Sensors (cleaning instructions) ....... 375
Service menu (on-board com-
puter) .................................................. 276
Service products Brake fluid ..................................... 453
Coolant (engine) ............................ 453
DEF special additives ..................... 451
Engine oil ....................................... 452
Fuel ................................................ 448
Important safety notes .................. 447
Refrigerant (air-conditioning sys-
tem) ............................................... 455
Washer fluid ................................... 454
Settings
Factory (on-board computer) ......... 281
On-board computer ....................... 277
Setting the air distribution ............... 148
Setting the airflow ............................ 148
SETUP (on-board computer) ............. 281
Side impact air bag ............................. 52
Side marker lamp (display mes-
sage) ................................................... 299 Side marker lamps (changing
bulbs)
................................................. 131
Side windows Cleaning ......................................... 375
Convenience closing feature ............ 95
Convenience opening feature .......... 95
Important safety information ........... 93
Opening/closing .............................. 94
Overview .......................................... 93
Problem (malfunction) ..................... 97
Resetting ......................................... 96
Sliding sunroof
Important safety notes .................... 97
Opening/closing .............................. 98
Problem (malfunction) ................... 101
Resetting ......................................... 98
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 83
Changing the programming ............. 81
Checking the battery ....................... 83
Convenience closing feature ............ 95
Convenience opening feature .......... 95
Display message ............................ 317
Door central locking/unlocking ....... 80
Important safety notes .................... 80
Loss ................................................. 85
Mechanical key ................................ 82
Overview .......................................... 80
Positions (ignition lock) ................. 157
Problem (malfunction) ..................... 85
Starting the engine ........................ 160
Snow chains
Information .................................... 403
Snow drive program ....................... 248
Sockets
Center console .............................. 349
General notes ................................ 349
Luggage compartment ................... 350
Rear compartment ......................... 350
Specialist workshop ............................ 29
Special seat belt retractor .................. 61
Speed, controlling see Cruise control
Speedometer
Digital ............................................ 270 18
Index

Trim pieces (cleaning instruc-
tions)
.................................................. 378
Trip computer (on-board com-
puter) .................................................. 269
Trip odometer Calling up ....................................... 269
Resetting (on-board computer) ...... 270
Trunk
see Tailgate
Turn signals
Display message ............................ 297
Switching on/off ........................... 123
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 422
Type identification plate see Vehicle identification plate U
Unlocking Emergency unlocking ....................... 88
From inside the vehicle (central
unlocking button) ............................. 87 V
Vanity mirror (in the sun visor) ........ 347
Vehicle Correct use ...................................... 29
Data acquisition ............................... 30
Display message ............................ 315
Equipment ....................................... 25
Individual settings .......................... 277
Limited Warranty ............................. 30
Loading .......................................... 412
Locking (in an emergency) ............... 88
Locking (SmartKey) .......................... 80
Lowering ........................................ 428
Maintenance .................................... 26
Parking for a long period ................ 185
Pulling away ................................... 160
Raising ........................................... 425
Reporting problems ......................... 29
Securing from rolling away ............ 424
Towing away .................................. 393
Transporting .................................. 395
Unlocking (in an emergency) ........... 88 Unlocking (SmartKey) ...................... 80
Vehicle data ................................... 456
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 456
Vehicle data (off-road driving) Approach/departure angle ............ 458
Fording depth ................................ 457
Maximum gradient climbing abil-
ity .................................................. 458
Vehicle dimensions ........................... 456
Vehicle emergency locking ................ 88
Vehicle identification number see VIN
Vehicle identification plate .............. 446
Vehicle level AMG adaptive sport suspension
system ........................................... 216
Vehicle level (display message) ....... 304
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 382
Video Operating the DVD ........................ .273
VIN ...................................................... 446 W
Warning and indicator lamps ABS ................................................ 321
Brakes .......................................... .320
Check Engine ................................. 327
Coolant .......................................... 328
Distance warning ........................... 330
DISTRONIC PLUS ........................... 330
ESP ®
.............................................. 323
ESP ®
OFF ....................................... 324
Overview .......................................... 36
PASSENGER AIR BAG OFF .............. .45
Reserve fuel .................................. .327
Restraint system ............................ 326
Seat belt ........................................ 318
Tire pressure monitor .................... 331
Warranty .............................................. 25
Washer fluid Display message ............................ 316 22
Index

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops (Y page 29). SmartKey
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a risk of an accident.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
! Keep the SmartKey away from strong
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
Do not keep the SmartKey: R with electronic devices, e.g. a mobile
phone or another SmartKey
R with metallic objects, e.g. coins or metal
foil
R inside metallic objects, e.g. a metal case
This can affect the functionality of the
SmartKey.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder. Otherwise,
the KEYLESS-GO key will not be recognized. SmartKey functions
0043
0037 To lock the vehicle
0044 0054 To open/close the tailgate
0087 0036 To unlock the vehicle
X To unlock centrally: press button0087.80
SmartKeyOpening and closing

If you do not open the vehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the theft deterrent locking system is
armed again.
X To lock centrally: press button0043.
The SmartKey centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap
The turn signals flash once when unlocking
and three times when locking.
You can also set an audible signal to confirm that the vehicle has been locked. The audiblesignal can be activated and deactivated using
the on-board computer (Y page 279).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 278). KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY- LESS-GO key in the vehicle.
Locking/unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the functions of KEYLESS-GO with those of a con-
ventional SmartKey. Unlock the vehicle by
using KEYLESS-GO, for instance, and lock it
using the 0037button on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
corresponding door handle must not be
greater than 3 ft (1 m). KEYLESS-GO checks whether a valid Smart-
Key is in the vehicle by periodically establish- ing a radio connection between the vehicle
and the SmartKey. This happens:
R when the external door handles are
touched
R when starting the engine
R while the vehicle is in motion X
To unlock the vehicle: touch the inner
surface of the door handle.
X To lock the vehicle: touch sensor sur-
face 0043.
X Convenience closing feature: touch
recessed sensor surface 0044for an exten-
ded period.
Further information on the convenience clos-
ing feature (Y page 95).
If you pull on the handle of the tailgate, only
the cargo compartment of the vehicle is
unlocked. Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change the setting: press and hold
down the 0036and0037 buttons simulta-
neously for approximately six seconds until SmartKey
81Opening and closing Z

the battery check lamp flashes twice
(Y page 83).
i If the setting of the locking system is
changed within the signal range of the vehi- cle, pressing the 0037or0036 button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock the driver's door: press the
0036 button once.
X To unlock centrally: press the0036but-
ton twice.
X To lock centrally: press the0037button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles
(Y page 81).
X To restore the factory settings: press
and hold down the 0036and0037 buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (Y page 83). Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 77).There are several ways to turn off the alarm:
X To deactivate the alarm with the Smart-
Key: press the 0036or0037 button on the
SmartKey.
or
X Insert the SmartKey into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked
automatically.
X To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch 0043in the direction of
the arrow and at the same time remove
mechanical key 0044from the SmartKey.
For further information about: R unlocking the driver's door (Y page 88)
R unlocking the cargo compartment
(Y page 93)
R locking the vehicle (Y page 88)82
SmartKeyOpening and closing

Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
(Y page 66).
If the vehicle has been locked with the Smart-
Key or with KEYLESS-GO, opening a door from the inside will trigger the anti-theft alarm sys-
tem. Switch off the alarm (Y page 77).X
Front door: pull door handle 0044.
If the door is locked, locking knob 0043pops
up. The door is unlocked and can be
opened.
X Rear door: pull up locking knob 0043on the
relevant rear door.
The rear door is unlocked and can be
opened. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. The buttons are located on
both front doors. 0043
To unlock
0044 To lock
X To unlock: press button 0043.
X To lock: press button 0044.
If the front-passenger door is closed, the
vehicle locks.
Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with the SmartKey or KEYLESS-GO.
You can open a front door from inside the
vehicle even if it has been locked.
If the vehicle has been locked using the lock-
ing button for the central locking, or has been
locked automatically, and a door is opened
from the inside:
R the vehicle will be fully unlocked if it had
previously been fully unlocked
R only the door which has been opened form
the inside is unlocked if only the driver's
door had been previously unlocked Doors
87Opening and closing Z

X
Check the starter battery and recharge if
necessary (Y page 389).
or
X Jump-start the vehicle (Y page 391).
i The SmartKey can be turned in the igni-
tion lock even if it is not the correct Smart- Key for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO General notes
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS- GO function and a detachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart- Key is in the vehicle. This occurs, for example,
when starting the engine.
To start the vehicle without actively using the SmartKey:
R the Start/Stop button must be inserted in
the ignition lock.
R the SmartKey must be in the vehicle.
R the vehicle must not be locked with the
SmartKey or KEYLESS-GO (Y page 81).Do not keep the SmartKey:
R with electronic devices, e.g. a mobile
phone or another SmartKey
R with metallic objects, e.g. coins or metal
foil
R inside metallic objects, e.g. a metal case
This can impair the functionality of the KEY-
LESS-GO key.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder (Y page 346).
Otherwise, the KEYLESS-GO key will not be
recognized.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
R you will not be able to switch on the ignition
with the Start/Stop button.
R you will not be able to start the engine with
the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the but-
ton on the front door (Y page 87), you can
continue to start the engine with the Start/
Stop button.
i The engine can be turned off while the
vehicle is in motion by pressing and holding the Start/Stop button for approximately
three seconds. This function operates inde-
pendently of the ECO start/stop automatic
engine switch-off function.
Key positions with KEYLESS-GO 0043
Start/Stop button
0044 Ignition lock 158
DrivingDriving and pa
rking