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

Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 278
Setting the color (on-board com-
puter) ............................................ .278
AMG adaptive sport suspension
system ................................................ 215
AMG menu (on-board computer) ..... 281
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle .............. 194
Ashtray ............................................... 348
Assistance display (on-board com-
puter) ................................................. .275
Assistance menu (on-board com-
puter) ................................................. .275
ASSYST PLUS Displaying a service message ....... .371
Hiding a service message .............. 371
Notes ............................................. 370
Resetting the service interval dis-
play ................................................ 371
Service message ............................ 370
Special service requirements ......... 371
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 77
Function .......................................... .77
Switching off the alarm .................... 77
ATTENTION ASSIST
Activating/deactivating ................. 276
Display message ............................ 304
Function/note s............................. 233
Audio menu (on-board computer) .... 272
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 300
see Lights
Automatic car wash (care) ............... 372Automatic engine start (ECO start/
stop function) .................................... 163
Automatic engine switch-off (ECO
start/stop function) .......................... 162
Automatic headlamp mode .............. 120
Automatic transmission Accelerator pedal position ............. 171
Automatic drive program ............... 173
Changing gear ............................... 171
DIRECT SELECT lever ..................... 168
Display message ............................ 315
Drive program display .................... 168
Driving tips .................................... 171
Emergency running mode .............. 177
Engaging drive position .................. 170
Engaging neutral ............................ 169
Engaging park position automati-
cally ............................................... 169
Engaging reverse gear ................... 169
Engaging the park position ............ 168
Kickdown ....................................... 171
Manual drive progra m.................... 173
Manual drive program (AMG vehi-
cles) ............................................... 174
Manual drive program (vehicles
with the ON&OFFROAD package) .. 174
Overview ........................................ 168
Problem (malfunction) ................... 177
Program selector button ................ 172
Pulling away ................................... 160
Starting the engine ........................ 160
Steering wheel paddle shifters ...... 172
Trailer towing ................................. 171
Transmission position display ........ 168
Transmission positions .................. 170
Automatic transmission emer-
gency mode ....................................... 177
Axle load, permissible (trailer tow-
ing) ...................................................... 460 B
Bag hook ............................................ 339
Ball coupling Installing ........................................ 258
Removing ....................................... 262
Storing ........................................... 262
BAS (Brake Assist System) ................. 68 Index
5

Opening and closing the side trim
panels .................................................1 32
Operating safety Declaration of conformity ................ 28
Important safety notes .................... 27
Operating system
see On-board computer
Operator's Manual
Vehicle equipment ........................... 25
Outside temperature display ........... 267
Overhead control panel ......................41
Override feature Rear side windows ........................... 67 P
Paint code number ............................446
Paintwork (cleaning instructions) ... 373
Panic alarm .......................................... 44
Panorama roof with power tilt/
sliding panel
Important safety notes .................... 97
Opening/closing .............................. 99
Opening/closing the roller sun-
blind ............................................... 100
Problem (malfunction) ................... 101
Resetting ....................................... 100
Parking
Important safety notes .................. 182
Parking brake ................................ 184
Position of exterior mirror, front-
passenger side ............................... 116
Rear view camera .......................... 224
see PARKTRONIC
Parking aid
Active Parking Assist ..................... 220
see Exterior mirrors
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 288
Electric parking brake .................... 184
Warning lamp ................................. 326
Parking lamps
Switching on/off ........................... 122
Parking lamps (changing bulbs) ...... 131PARKTRONIC
Deactivating/activating ................. 219
Driving system ............................... 217
Function/notes ............................ .217
Important safety notes .................. 217
Problem (malfunction) ................... 220
Range of the sensors ..................... 217
Trailer towing ................................. 219
Warning displa y............................. 218
PASSENGER AIR BAG OFF
Indicator lamp .................................. 45
Problems (malfunction) .................. 295
Pets in the vehicle ............................... 67
Plastic trim (cleaning instruc-
tions) .................................................. 378
Power closing feature ......................... 88
Power washers .................................. 373
Power windows see Side windows
PRE-SAFE ®
(anticipatory occupant
protection) Display message ............................ 291
Operation ......................................... 60
PRE-SAFE ®
Brake
Activating/deactivating ................. 276
Display message ............................ 293
Function/note s................................ 75
Warning lamp ................................. 330
Program selector button .................. 172
Protection of the environment General notes .................................. 24
Pulling away
Trailer ............................................ 161
Pulling away (automatic transmis-
sion) .................................................... 160 Q
Qualified specialist workshop ........... 29 R
RACETIMER (on-board computer) .... 282
Radar sensor system Activating/deactivating ................. 279
Display message ............................ 307
Radiator cover ................................... 36716
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

the operating safety of the vehicle could be
affected. There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection in the vehicle. G
WARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use loose floormats and do not place floormats on
top of one another.
! If the engine is switched off and equip-
ment on the diagnostics connection is
used, the starter battery may discharge.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test dur-
ing the main inspection. Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the nec-
essary specialist knowledge, tools and quali-
fications to correctly carry out the work
required on your vehicle. This is especially the case for work relevant to safety.
Observe the notes in the Maintenance Book-
let.
Always have the following work carried out at
an authorized Mercedes-Benz Center:
R work relevant to safety
R service and maintenance work
R repair work R
alterations, installation work and modifica-
tions
R work on electronic components Correct use
If you remove any warning stickers, you or
others could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driv- ing your vehicle:
R the safety notes in this manual
R the Technical Data section in this manual
R traffic rules and regulations
R laws and safety standards pertaining to
motor vehicles Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may affect its safe operation, we urge you to con-
tact an authorized Mercedes-Benz Center
immediately to have the problem diagnosed
and rectified. If the problem is not resolved to
your satisfaction, please discuss the problem
again with a Mercedes-Benz Center or con-
tact us at one of the following addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9 Reporting safety defects
USA only: Introduction
29 Z

G
WARNING
While closing the side windows, body parts in the closing area could become trapped. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again. G
WARNING
If children operate the side windows they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the vehi-
cle. Never leave children unsupervised in the
vehicle. Side window reversing feature
The side windows are equipped with an auto- matic reversing feature. If a solid object
blocks or restricts a side window during the
closing process, the side window opens again
automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing a side window. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 1/6 in(4 mm) of the closing
movement
R during resetting
R when closing the side window again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If someone becomes trapped, press the switch
to open the side window again. Opening and closing the side win-
dows
The switches for all side windows are located on the driver's door. There is also a switch on
each door for the corresponding side window.
The switches on the driver's door take prec-
edence. 0043
Front left
0044 Front right
0087 Rear right
0085 Rear left
X Turn the SmartKey to position 1or 2in the
ignition lock.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
i If you press/pull the switch beyond the
point of resistance, automatic operation is
started in the corresponding direction. You
can stop automatic operation by pressing/ pulling the switch again.
i You can continue to operate the side win-
dows after you switch off the engine or
remove the SmartKey. This function is
available for up to five minutes or until the
driver's or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 67).94
Side windowsOpening and closing

panorama roof with power tilt/sliding
panel are fully closed.
X Make sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.
On vehicles with a panorama roof with power tilt/sliding panel:
X Press and hold the 0037button again until
the roller sunblinds of the panorama roof
with power tilt/sliding panel close.
X To interrupt convenience closing:
release the 0037button.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed. X
Touch recessed sensor surface 0043on the
door handle until the side windows and the sliding sunroof or the panorama roof with
power tilt/sliding panel are fully closed.
i Make sure you only touch recessed sen-
sor surface 0043.
X Make sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.
On vehicles with a panorama roof with power tilt/sliding panel:
X Touch recessed sensor surface 0043on the
door handle again until the roller sunblinds of the panorama roof with power tilt/slid-
ing panel close. X
To interrupt convenience closing:
release recessed sensor surface 0043on the
door handle. Resetting the side windows
If a side window can no longer be closed fully, you must reset it.
X Close all the doors.
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Pull the corresponding switch on the door
control panel until the side window is com- pletely closed. (Y page 94)
X Hold the switch for an additional second.
If the side window opens again slightly: X Immediately pull the corresponding switch
on the door control panel until the side win-
dow is completely closed (Y page 94).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly. If
this is not the case, repeat the steps aboveagain. 96
Side windowsOpening and closing

Problems with the side windows
G
WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, releasethe switch or push the switch again to reopen the side window. Problem
Possible causes/consequences and
0050 0050Solutions A side window cannot
be closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. A side window cannot
be closed and you can-
not see the cause. If a side window is obstructed during closing and reopens again
slightly:
X Immediately after the window blocks, pull the corresponding
switch again until the side window has closed.
The side window is closed with increased force.
If a side window is obstructed again during closing and reopens
again slightly: X Immediately after the window blocks, pull the corresponding
switch again until the side window has closed.
The side window is closed without the anti-entrapment feature. Sliding sunroof
Important safety notes
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In this section, the term "sliding sunroof" refers to both types of sliding sun-
roof. G
WARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro- cedures. If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped. G
WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. Sliding sunroof
97Opening and closing Z

!
Only open the sliding sunroof if it is free of
snow and ice. Otherwise, malfunctions may
occur.
Do not allow anything to protrude from the sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition to
the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window. The noise will be
reduced or eliminated. Sliding sunroof reversing feature
The sliding sunroof is equipped with an auto- matic reversing feature. If a solid object
blocks or restricts the sliding sunroof during
the closing process, the sliding sunroof opens
again automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing the sliding sunroof. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 1/6 in(4 mm) of the closing
movement
R during resetting
R when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The closing process is stopped. Operating the sliding sunroof
Opening and closing Overhead control panel
0043
To raise
0044 To open
0087 To close/lower
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Press or pull the 0056switch in the corre-
sponding direction.
i If you press the
0056switch beyond the
point of resistance, an automatic opening/ closing process is started in the corre-
sponding direction. You can stop automatic
operation by operating the switch again.
When opening and raising the roof, auto-
matic operation is only available if the slid- ing sunroof is in the closed position.
The sun protection cover automatically opens
along with the sliding sunroof. You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the SmartKey from the ignition
lock. This function is available for up to five minutes or until the driver's or front-
passenger door is opened.
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting, con- tact a qualified specialist workshop. 98
Sliding sunroofOpening and closing

Reset the sliding sunroof if it does not move
smoothly.
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Raise the sliding sunroof fully at the rear
(Y page 98).
X Keep the 0056switch pressed for another
second.
X Make sure that the sliding sunroof can be
fully opened and closed again (Y page 98).
X If this is not the case, repeat the steps
above again. Operating the panorama roof with
power tilt/sliding panel
Overhead control panel
0043
To raise
0044 To open
0087 To close/lower
The panorama roof with power tilt/sliding
panel can only be operated when the roller
sunblind is open (Y page 100).
X To open and close: turn the SmartKey to
position 1or 2in the ignition lock.
X Press or pull the 0056switch in the corre-
sponding direction.
i If you press the
0056switch beyond the
point of resistance, an automatic opening/ closing process is started in the corre-
sponding direction. You can stop automatic
operation by operating the switch again.
The automatic raising feature is available
only when the sliding sunroof is closed. Operating the roller sunblinds for the
panorama roof with power tilt/sliding
panel
Important safety notes G
WARNING
When opening or closing the roller sunblind,
parts of the body could be trapped between
the roller sunblind and the frame or sliding
sunroof. There is a risk of injury.
When opening or closing make sure that no
parts of the body are in the sweep of the roller sunblind.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
The roller sunblinds shield the vehicle interior from sunlight. The roller sunblinds can only be
opened and closed together when the pano-
rama roof with power tilt/sliding panel is
closed.
Roller sunblind reversing feature The roller sunblinds are equipped with an
automatic reversing feature. If a solid object
blocks or restricts a roller sunblind during the
closing process, the roller sunblind opens
again automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing the roller sunblinds. G
WARNING
The reversing feature especially does not
react to soft, light and thin objects such as
small fingers. This means that the reversing
feature cannot prevent someone being trap-
ped in these situations. There is a risk of
injury.
When closing make sure that no parts of the
body are in the sweep of the roller sunblind. Sliding sun
roof
99Opening and closing
Z