transmission 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

Combination switch
.......................... 123
Combined cargo cover and net ........ 341
Consumption statistics (on-board
computer) .......................................... 269
Convenience closing feature .............. 95
Convenience opening feature ............ 95
Coolant (engine) Checking the level ........................ .369
Display message ............................ 300
Filling capacity ............................... 454
Important safety notes .................. 453
Temperature (on-board com-
puter) ............................................. 281
Temperature gauge ........................ 266
Warning lamp ................................. 328
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function Display message ............................ 297
Function/notes ............................ .125
Crash-responsive emergency light-
ing ....................................................... 129
Cruise control Activating ....................................... 196
Activation conditions ..................... 196
Cruise control lever ....................... 196
Deactivating ................................... 197
Display message ............................ 311
Driving system ............................... 195
Function/notes ............................ .195
Important safety notes .................. 196
Storing and maintaining current
speed ............................................. 196
Cup holder
Center console .............................. 346
Important safety notes .................. 345
Rear compartment ......................... 346
Temperature controlled ................. 346
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29 D
Dashboard see Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 299
Function/notes ............................ .120
Switching on/off (on-board com-
puter) ............................................. 277
Declarations of conformity ................. 28
DEF Adding .......................................... .180
Display message ............................ 303
Filling capacity ............................... 452
Important safety notes .................. 451
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 278
Interior lighting .............................. 279
Diagnostics connection ......................28
Diesel .................................................. 449
Differential lock (display mes-
sage) .................................................. .306
Digital speedometer ......................... 270
DIRECT SELECT lever Automatic transmission ................. 168
Display messages
ASSYST PLUS ................................ 370
Calling up (on-board computer) ..... 284
Driving systems ............................ .304
Engine ............................................ 300
General notes ................................ 284
Hiding (on-board computer) ........... 284
KEYLESS-GO .................................. 317
Lights ............................................. 297
Safety systems .............................. 285
SmartKey ....................................... 317
Tires ............................................... 312
Vehicle .......................................... .315
Distance recorder
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 3308
Index

HOLD functio
n............................... 210
Lane Keeping Assist ...................... 239
Level control (vehicles with AIR-
MATIC package) ............................. 213
Level control (vehicles with the
ON&OFFROAD package) ................ 206
On-road programs .......................... 247
PARKTRONIC ................................. 217
Rear view camera .......................... 224
Driving tips
Automatic transmission ................. 171
Brakes ........................................... 188
Break-in period .............................. 156
DISTRONIC PLUS ........................... 205
Downhill gradient ........................... 188
Drinking and driving ....................... 186
Driving abroad ............................... 120
Driving in winter ............................. 190
Driving on flooded roads ................ 190
Driving on sand .............................. 193
Driving on wet roads ...................... 190
Driving over obstacles ................... 194
Exhaust check ............................... 186
Fuel ................................................ 186
General .......................................... 186
Hydroplaning ................................. 190
Icy road surfaces ........................... 190
Limited braking efficiency on sal-
ted roads ....................................... 188
Off-road driving .............................. 192
Off-road fording ............................. 190
Snow chains .................................. 403
Symmetrical low beam .................. 120
Tire ruts ......................................... 194
Towing a trailer .............................. 257
Traveling uphill ............................... 194
Wet road surface ........................... 188
DSR (Downhill Speed Regulation)
Display message ............................ 306
Function/note s............................. 250
DVD video
Operating (on-board computer) ..... 273 E
EASY-ENTRY feature Activating/deactivating ................. 279
Function/note s............................. 113
EASY-EXIT feature
Crash-responsive ........................... 114
Function/note s............................. 113
Switching on/of f........................... 279
EASY-PACK load-securing kit
Components and storage .............. 342
EBD (electronic brake force distri-
bution)
Display message ............................ 287
Function/note s................................ 75
ECO display
Function/note s............................. 187
On-board computer ....................... 270
ECO start/stop function (ML 250
BlueTEC 4MATIC)
Automatic engine start .................. 165
Automatic engine switch-off .......... 165
General notes ................................ 164
Important safety notes .................. 164
Introduction ................................... 164
Switching on/of f........................... 165
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 60
Emergency release
Driver's door .................................... 88
Vehicle ............................................. 88
Emergency spare wheel
General notes ................................ 441
Important safety notes .................. 440
Removing ....................................... 441
Storage location ............................ 441
Technical data ............................... 443
Emergency Tensioning Devices
Activation ......................................... 58
Emergency unlocking
Tailgate ............................................ 93
Emissions control
Service and warranty information .... 25 10
Index

Maximum load on a tire (defini-
tion) ............................................... 422
Maximum permissible tire pres-
sure (definition) ............................. 422
Maximum tire load .........................4 19
Maximum tire load (definition) ....... 422
MOExtended tires .......................... 402
Optional equipment weight (defi-
nition) ............................................ 422
PSI (pounds per square inch) (def-
inition) .......................................... .422
Replacing ....................................... 423
Service life ..................................... 402
Sidewall (definition) ....................... 422
Speed rating (definition) ................ 421
Storing .......................................... .424
Structure and characteristics
(definition) ..................................... 420
Temperature .................................. 416
TIN (Tire Identification Number)
(definition) ..................................... 422
Tire bead (definition) ..................... .422
Tire pressure (definition) ................ 422
Tire pressures (recommended) ...... 421
Tire size (data) ............................... 428
Tire size designation, load-bearing capacity, speed rating .................... 417
Tire tread ....................................... 401
Tire tread (definition) ..................... 422
Total load limit (definition) ............. 423
Traction ......................................... 416
Traction (definition) ....................... 422
Tread wea r..................................... 416
TWR (permissible trailer drawbar
noseweight) (definition) ................. 422
Uniform Tire Quality Grading
Standards ...................................... 415
Uniform Tire Quality Grading
Standards (definition) .................... 421
Wear indicator (definition) ............. 423
Wheel and tire combination ........... 430
Wheel rim (definition) .................... 421
see Flat tire
Top Tether ............................................ 64
Towing a trailer Active Parking Assist ..................... 224
Axle load, permissibl e.................... 460
Cleaning the trailer tow hitch ......... 376 Coupling up a traile
r...................... 259
Decoupling a trailer ....................... 261
Driving tips .................................... 257
ESP ®
(Electronic Stability Pro-
gram) ............................................... 74
Important safety notes .................. 256
Installing the ball coupling ............. 258
Mounting dimensions .................... 459
Power supply ................................. 263
Pulling away with a traile r.............. 161
Removing the ball coupling ............ 262
Storing the ball coupling ................ 262
Trailer drive progra m..................... 249
Trailer load s................................... 460
Towing away
Important safety guidelines ........... 393
Installing the towing eye ................ 394
Removing the towing eye ............... 395
With both axles on the ground ....... 395
With the rear axle raised ................ 395
Tow-starting
Emergency engine starting ............ 396
Important safety notes .................. 393
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 262
Trailer towing Active Blind Spot Assist ................. 244
Active Lane Keeping Assist ............ 247
Blind Spot Assist ............................ 239
PARKTRONIC ................................. 219
Permissible trailer loads and
drawbar noseweights ..................... 262
Transfer case ..................................... 177
Transmission see Automatic transmission
Transmission position display ......... 168
Transmission position display
(DIRECT SELECT lever) ...................... 168
Transporting the vehicle .................. 395
Traveling uphill Brow of hill ..................................... 195
Driving downhill ............................. 195
Maximum gradient-climbing capa-
bility ............................................... 195 Index
21

Protection of the environment
General notes
H
Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
R operating conditions of your vehicle
R your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
R avoid short trips as these increase fuel con-
sumption.
R always make sure that the tire pressures
are correct.
R do not carry any unnecessary weight.
R remove roof racks once you no longer need
them.
R a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R always have service work carried out at a
qualified specialist workshop.
Personal driving style:
R do not depress the accelerator pedal when
starting the engine.
R do not warm up the engine when the vehicle
is stationary.
R drive carefully and maintain a safe distance
from the vehicle in front.
R avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to 00C3of its maximum engine speed.
R switch off the engine in stationary traffic.
R keep an eye on the vehicle's fuel consump-
tion. Environmental concerns and recom-
mendations
Wherever the operating instructions require
you to dispose of materials, first try to regen-
erate or re-use them. Observe the relevant
environmental rules and regulations when
disposing of materials. In this way you will
help to protect the environment. Genuine Mercedes-Benz parts
H
Environmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the same Limited Warranty entitlements as new
parts.
! Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for these restraint systems, may be installed inthe following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrument cluster
R center console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have aftermarket accessories installed at a qualified specialist workshop. 24
Introduction

R
in vehicles with a memory function: the
electrically adjustable steering wheel is
raised
R the engine is switched off
R vehicles with mbrace: automatic emer-
gency call Children in the vehicle
Important safety notes
Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For this reason, Mercedes-Benz strongly advises
that you install a child restraint system on a
rear seat. Children are generally better pro-
tected there.
If a child younger than 12 years and under 5 ft
(1.50 m) in height is traveling in the vehicle:
R always secure the child in a child restraint
system suitable for Mercedes-Benz vehi-
cles. The child restraint system must be
appropriate to the age, weight and size of
the child
R be sure to observe the instructions and
safety notes in this section in addition to
the child restraint system manufacturer's
installation instructions
R be sure to observe the instructions and
safety notes on the "Occupant classifica-
tion system (OCS)" (Y page 53)G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. 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 unsupervised in the vehicle. 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 the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sit- ting properly. Particular attention must be
paid to children.
Observe the safety notes on the seat belt
(Y page 46) and the notes on correct use of
seat belts (Y page 47).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lbs (18 kg) or until they reach a height
where a lap/shoulder belt fits properly with-
out a booster seat. Special seat belt retractor
G
WARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a Children in the vehicle
61Safety
Z

Child-proof locks
Important safety notes G
WARNING
If children are traveling in the vehicle, they
could:
R open doors, thus endangering other people
or road users
R exit the vehicle and be caught by oncoming
traffic
R operate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Override feature for: R the rear doors (Y page 66)
R the rear side windows (Y page 67)G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. 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 unsupervised in the vehicle. 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 the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the childrestraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in the vehicle.
Child-proof locks for the rear doors You secure each door individually with the
child-proof locks on the rear doors. A door
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
X To activate: press the child-proof lock
lever up in the direction of arrow 0043.
X Make sure that the child-proof locks are
working properly.
X To deactivate: press the child-proof lock
lever down in the direction of arrow 0044.66
Children in the vehicleSafety

Should you approach an obstacle and Adap-
tive Brake Assist has detected a risk of colli-
sion, Adaptive Brake Assist calculates the
braking force necessary to avoid a rear-end
collision. Should you apply the brakes vigo-
rously, Adaptive Brake Assist will automati-
cally increase the braking force to a level suit- able for the traffic conditions.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
R you release the brake pedal.
R there is no longer any danger of a collision.
R no obstacle is detected in front of your
vehicle.
Adaptive Brake Assist is then deactivated.
Vehicles with PRE-SAFE ®
:if adaptive Brake
Assist requires particularly high brake pres-
sure, preventive passenger protection meas-
ures (PRE-SAFE ®
) are deployed simultane-
ously.
Up to vehicle speeds of around 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been recognized as such at least once
over the period of observation. Adaptive
Brake Assist does not react to stationary
obstacles.
If Adaptive Brake Assist is not available due to
a malfunction in the radar sensor system, the brake system remains available with full
brake boosting effect and BAS.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R there is snow or heavy rain
R there is interference by other radar sources
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike R
a vehicle traveling in front on a different line
relative to the center of your vehicle
R new vehicles or after the COLLISION PRE-
VENTION ASSIST system has been serv-
iced
Observe the notes in the section on break- ing-in (Y page 156).
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensor checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at low speeds where there is no visible
damage to the front of the vehicle. ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 67).
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tires and
the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilize the vehicle during braking.
ETS/4ETS (Electronic Traction System) ETS/4ETS traction control is part of ESP
®
.
Traction control brakes the drive wheels indi- vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP ®
.
In appropriate driving situations, activate the
off-road program (Y page 251).72
Driving safety systemsSafety

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

Problem
Possible causes/consequences and
0050
0050Solutions The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 389).
or
X Jump-start the vehicle (Y page 391).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. A door is open. Therefore, the SmartKey cannot be detected as
easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X Start your vehicle with the SmartKey in the ignition lock. Doors
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 objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
You should preferably place luggage or loads
in the cargo compartment. Observe the load- ing guidelines (Y page 334).86
DoorsOpening and closing