check engine MERCEDES-BENZ M-Class 2013 W166 Owner's Manual

Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle ..............190
Ashtray ............................................... 346
Assistance menu (on-board
computer) .......................................... 272
ASSYST PLUS Displaying a service message ........369
Hiding a service message ..............369
Notes ............................................. 368
Resetting the service interval
displa y........................................... 369
Service message ............................ 368
Special service requirements ......... 369
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................75
Function .......................................... .75
Switching off the alarm ....................75
ATTENTIO NASSIST
Activating/deactivating .................273
Display message ............................ 302
Function/notes ............................. 230
Audio menu (on-board computer) ....269
Audio system see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message ............................ 298
see Lights
Automatic engine start (ECO start/
stop function) .................................... 162
Automatic engine switch-off (ECO
start/stop function) ..........................162
Automatic headlamp mode ..............120
Automatic transmission Automatic drive program ...............169
Changing gea r............................... 168
DIRECT SELECT leve r..................... 165
Display message ............................ 312
Drive program displa y.................... 165Driving tips
.................................... 168
Emergency running mode ..............173
Engaging drive position .................. 167
Engaging neutra l............................ 166
Engaging par kposition
automatically ................................. 166
Engaging revers egear ................... 166
Engaging the par kposition ............ 165
Kickdow n....................................... 168
Manual drive program ....................171
Overview ........................................ 165
Problem (malfunction) ...................173
Progra mselector button ................169
Pulling away ................................... 160
Shift range s................................... 170
Starting the engine ........................159
Steering wheel paddle shifters ......169
Trailer towing ................................. 168
Transmission position displa y........ 165
Transmissio npositions .................. 167
Automatic transmission
emergency mode ............................... 173
Axle load, permissible (trailer
towing) ............................................... 455 B
Bag hook ............................................ 337
Ball coupling Installing ........................................ 255
Removing ....................................... 259
Storing ........................................... 260
BAS (Brake Assist System) .................67
BAS PLUS (Brake Assist System
PLUS) .................................................... 67
Battery (SmartKey) Checking .......................................... 81
Important safety notes ....................81
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 387
Display message ............................ 300
Important safety notes ..................385
Jump starting ................................. 389
Overview ........................................ 385
Blin dSpot Assist
Activating/deactivating .................273
Display message ............................ 306 Index
5

Overview of bulb types
..................129
Parking lamps ................................ 131
Removing/replacing the cover
(front wheel arch) .......................... 129
Side marker lamps .........................131
Standing lamps (front) ...................131
Child-proof locks
Important safety notes ....................64
Rea rdoors ....................................... 65
Children
In the vehicle ................................... 60
Restraint systems ............................ 60
Specia lseat belt retractor ...............62
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 63
Cigarette lighter ................................ 346
Cleaning Mirro rturn signal ........................... 373
Trailer tow hitch ............................. 374
Climate control
Automatic climate control (3-
zone) .............................................. 142
Controlling automatically ...............145
Cooling with aird ehumidification..145
Defrosting the windows .................149
Defrosting the windshield ..............148
Dual-zone automatic climate
control ........................................... 139
Important safety notes ..................138
Indicator lamp ................................ 145
Information on using 3-zone
automatic climate control ..............144
Maximum cooling .......................... 148
Notes on using automatic climate
control ........................................... 141
Overview of systems ......................138
Problems with cooling with air
dehumidification ............................ 145
Problem with the rear window
defroster ........................................ 150
Rea rcontrol panel ......................... 142
Setting the aird istribution.............147
Setting the airflow .........................147
Setting the airv ents...................... 151
Setting the climate mode (AIR
FLOW) ............................................ 146Setting the temperature
................146
Switching air-recirculation mode
on/off ............................................ 150
Switching on/off ........................... 144
Switching residual hea ton/off ......150
Switching the rear window
defroster on/off ............................ 149
Switching the ZONE function on/
off .................................................. 148
Coat hooks ......................................... 340
Cockpit Overview .......................................... 32
see Instrument cluster
COLLISIO NPREVENTION ASSIST .......68
COMAND ON&OFFROAD menu .....................252
see separate operating instructions
COMAND display
Cleaning ......................................... 374
Combination switch ..........................123
Combine dcargo cover and net ........339
Compass Calling up ....................................... 362
Consumption statistics (on-board
computer) .......................................... 267
Convenience closing feature ..............93
Convenience opening feature ............93
Coolan t(engine)
Checkin gthe level ......................... 367
Display message ............................ 299
Filling capacity ............................... 451
Important safety notes ..................451
Temperature (on-board computer) .278
Temperature gauge ........................ 263
Warning lamp ................................. 326
Cooling
see Climate control
Cornering light function
Display message ............................ 295
Function/notes ............................. 125
Crash-responsive emergency
lighting ............................................... 128
Cruise control Activating ....................................... 193
Activatio ncondition s..................... 192
Cruise control leve r....................... 192
Deactivating ................................... 194 Index
7

Snow chains
.................................. 401
Symmetrical low bea m.................. 120
Tire ruts ......................................... 189
Towing atrailer .............................. 253
Traveling uphill ............................... 190
Wet road surface ........................... 183
DSR (Downhill Spee dRegulation)
Display message ............................ 305
Function/notes ............................. 246
DVD audio
Operating (on-board computer) .....270
DVD video
Operating (on-board computer) .....270 E
EASY-ENTRY feature Activating/deactivating .................277
Function/notes ............................. 112
EASY-EXIT feature
Crash-responsive ........................... 113
Function/notes ............................. 112
Switching on/off ........................... 277
EASY-PACK load-securing kit ...........340
EBD (electronic brake force
distribution)
Display message ............................ 285
Function/notes ................................ 73
ECO start/stop function
Automatic engine start ..................162
Automatic engine switch-off ..........162
Deactivating/activating .................163
General information .......................161
Important safety notes ..................161
Electronic Stability Program
see ESP ®
(Electroni cStability Program)
Emergenc yrelease
Driver's door .................................... 86
Vehicle ............................................. 86
Emergency spare wheel
Important safety notes ..................436
Points to remember .......................437
Removing ....................................... 437
Storage location ............................ 437
Technical data ............................... 439
Emergency Tensioning Devices
Function .......................................... .59
Safety guideline s............................. 43Emergency unlocking
Tailgate ............................................ 91
Emissions control
Service and warranty information ....24
Engine
Check Engine warning lamp ........... 325
Display message ............................ 299
ECO start/stop function ................161
Engine number ............................... 444
Irregularr unning............................ 164
Jump-starting ................................. 389
Starting problems ..........................164
Starting the engine with the
SmartKey ....................................... 159
Starting with KEYLESS-GO .............160
Switching off .................................. 180
Tow-starting (vehicle) ..................... 394
Engine electronics
Problem (malfunction) ...................164
Engine oil
Adding ........................................... 366
Additives ........................................ 450
Checking the oil level ..................... 365
Checking the oil level using the
dipstick .......................................... 366
Display message ............................ 300
Filling capacity ............................... 450
Notes about oil grades ................... 449
Notes on oil level/consumption ....365
Temperature (on-board computer) .278
Viscosity ........................................ 450
ESP ®
(Electronic Stability
Program) AMG menu (on-board computer) ...279
Deactivating/activating ...................71
Display message ............................ 283
ETS/4ETS ........................................ 70
Function/notes ................................ 70
Important safety information ...........71
Trailer stabilization ........................... 72
Warning lamp ................................. 321
ETS/4ETS (Electronic Traction
System) ................................................ 70
Exhaus tcheck ................................... 182
Exhaus tpipe (cleaning
instructions) ...................................... 37410
Index

Route guidance (navigation)
............268 S
Safety Childre ninthe vehicle ..................... 60
Child restraint systems ....................60
Occupant Classification System
(OCS) ............................................... 48
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger sea tbelt ......................... 57
Adjusting the height ......................... 57
Belt force limiters ............................ 59
Cleaning ......................................... 377
Correct usage .................................. 55
Emergency Tensioning Devices ....... .59
Fastening ......................................... 56
Important safety guidelines .............54
Releasing ......................................... 58
Safety guidelines ............................. 43
Switching belt adjustment on/off
(on-board computer) ......................277
Warning lamp ................................. 317
Warning lamp (function) ................... 58
see Seat belts
Seats
Adjusting (electrically). ..................104
Adjusting the head restraint ..........104
Cleaning the cover .........................376
Correct driver's sea tposition ........102
Folding the rear bench seat
forwards/back ............................... 335
Important safety notes ..................103
Overview ........................................ 103
Seat heating problem ....................109
Seat ventilation problem ................110
Storing settings (memory
function) ........................................ 116
Switching sea theating on/off .......107
Switching seat ventilation on/off ..109
Securing hooks .................................. 338
Selector lever Cleaning ......................................... 376
Sensors (cleaning instructions) .......373
Service menu (on-board computer) .273 Service products
Brake fluid ..................................... 450
Coolant (engine) ............................ 451
DEF special additive s..................... 448
Engine oil ....................................... 449
Fuel ................................................ 445
Important safety notes ..................444
Washer fluid .................................. .452
Settings
Factory (on-board computer) .........278
On-board computer .......................274
Setting the air distribution ...............147
Setting the airflow ............................147
SETUP (on-board computer) .............279
Side impact air bag .............................47
Side marker lamp (display
message) ............................................ 297
Side marker lamps (changing
bulbs) ................................................. 131
Side windows Cleaning ......................................... 372
Convenience closing feature ............93
Convenience opening feature ..........93
Important safety information ...........92
Opening/closing .............................. 92
Overview .......................................... 92
Problem (malfunction) .....................96
Resetting ......................................... 94
Sliding sunroof
Important safety notes ....................96
Opening/closing .............................. 97
Problem (malfunction) ...................100
Resetting ......................................... 98
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................81
Changing the programming .............80
Checking the battery .......................81
Convenience closing feature ............94
Convenience opening feature ..........93
Display message ............................ 314
Door central locking/unlocking .......79
Important safety notes ....................78
Loss ................................................. 83
Mechanical key ................................ 80
Overview .......................................... 78
Positions (ignition lock) .................157 Index
17

Opening/closing (from outside)
.......88
Opening dimensions ......................452
Power closing .................................. 86
Tail lamps
Display message ............................ 296
Tank content
Fuel gauge ............................... 33, 263
Technical data
Capacities ...................................... 444
Emergency spare wheel .................439
Information .................................... 442
Tires/wheels ................................. 426
Trailer loads ................................... 455
Vehicle data ................................... 452
TELEAID
Call priority .................................... 354
Downloading destinations
(COMAND) ..................................... 354
Downloading route s....................... 358
Emergency call .............................. 351
Geo fencing ................................... 358
Important safety notes ..................350
Locating astolen vehicl e............... 357
MB info call button ........................353
Remote vehicle locking ..................356
Roadside Assistance button ..........353
Search &Send ............................... 355
Self-test ......................................... 351
Speed alert .................................... 358
System .......................................... 351
Triggering the vehicle alarm ........... 359
Vehicle remote malfunction
diagnosi s....................................... 357
Vehicle remote unlocking ..............356
Telephone
Accepting acall............................. 271
Display message ............................ 314
Menu (on-board computer) ............270
Number from the phone book ....... .271
Redialing ........................................ 271
Rejecting/ending acall................. 271
Telescopic rod (EASY-PACK load-
securing kit) ....................................... 341
Temperature Coolant .......................................... 263
Coolant (on-board computer) ......... 278
Engine oil (on-board computer) ...... 278 Outside temperature .....................
.264
Setting (climate control) ................146
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........75
Immobilize r...................................... 75
Through-loading ................................ 335
Time see Separate Operator's Manual
Timing (RACETIMER) .........................279
TIREFIT kit .......................................... 383
Tire pressure Calling up (on-board computer) .....406
Checking manually ........................405
Display message ............................ 310
Maximum ....................................... 404
Notes ............................................. 403
Not reached (TIREFIT) ....................384
Reached (TIREFIT) ..........................384
Recommended ............................... 402
see Tire pressure
Tire pressure loss warning system
Important safety notes ..................405
Restarting ...................................... 406
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 408
Function/notes ............................. 406
Restarting ...................................... 409
Warning lamp ................................. 329
Warning message .......................... 409
Tires
Aspect ratio (definition) .................420
Average weight of the vehicle
occupants (definition) ....................419
Bar (definition) ............................... 418
Changing awheel .......................... 421
Characteristics .............................. 418
Checking ........................................ 399
Definition of terms .........................418
Directio nofrotation ...................... 422
Display message ............................ 310
Distributio nofthe vehicle
occupants (definition) ....................421
DOT, Tire Identification Number
(TIN) .............................................. .418
DOT (Department of
Transportation) (definition) ............419 Index
19

Trailer towing
Active Blind Spo tAssist ................. 240
Active Lane Keeping Assist ............243
Blind Spot Assist ............................ 235
PARKTRONI C................................. 216
Permissible trailer loads and
drawba rnoseweights ..................... 259
Transfer case ..................................... 173
Transmission see Automatic transmission
Transmission position display .........165
Transmission position display
(DIRECT SELECTl ever)...................... 165
Transporting the vehicle ..................393
Traveling uphill Brow of hill ..................................... 191
Driving downhill ............................. 191
Maximum gradient-climbing
capability ....................................... 191
Trim pieces (cleaning instructions) .376
Trip computer (on-board
computer) .......................................... 267
Trip odometer Calling up ....................................... 266
Resetting (on-board computer) ......268
see Trip odometer
Trunk
see Tailgate
Turn signals
Display message ............................ 295
Switching on/off ........................... 123
see Turn signals
TWR (Tongue Weight Rating)
(definition) ......................................... 421
Type identification plate see Vehicle identification plate U
Unlocking Emergency unlocking .......................86
From inside the vehicle (central
unlocking button) ............................. 85 V
Vanity mirror (in the sun visor) ........345
Vehicle Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 312
Equipment ....................................... 24
Individua lsettings .......................... 274
Limited Warranty ............................. 28
Loading .......................................... 410
Locking (in an emergency) ...............87
Locking (SmartKey) .......................... 79
Lowering ........................................ 426
Maintenance .................................... 25
Parking for a long period ................ 182
Pulling away ................................... 160
Raising ........................................... 423
Reporting problems .........................28
Securing from rolling away ............422
Towing away .................................. 391
Transporting .................................. 393
Unlocking (in an emergency) ...........86
Unlocking (SmartKey) ......................79
Vehicle data ................................... 452
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 452
Vehicle dimensions ...........................452
Vehicle emergency locking ................87
Vehicle identification number see VIN
Vehicle identification plate ..............443
Vehicle level (display message) .......302
Vehicle tool kit .................................. 380
Video Operating the DVD ......................... 270
VIN ...................................................... 443 W
Warning and indicator lamps ABS ................................................ 319
Brakes ........................................... 318
Check Engine ................................. 325
Coolant .......................................... 326
Distance warning ........................... 328
DISTRONI CPLUS ........................... 328 Index
21

Warning and indicator lamps
Function Page
0002
000D
Low-beam
headlamps 121
0003
0016
Parking lamps 122
001F
000F
ESP® 321
001E
000C
High-beam
headlamps 124
001C
Electric parking brake (red) 324
0008
(USA only) 000D
(Canada only) 001D
000D
Electric parking brake
(yellow) 324
0011
000F
Distance warning 328
0012
00070006
Turn signals 123
0013
0012
Tire pressure monitor 329 Function Page
0014
001F
SRS 324
0015
0014
Seat belt 317
0016
0010
Diesel engine:
preglow 159
0017
000E
Coolant 326
0018
0010
Rearfog lamp 122
0019
0010
Check Engine 325
001A
0012
Reserve fuel 325
001B
0017
ESP®
OFF 321
0021
0019
ABS 319
0022
Braking 318
0012
(USA only) 0009
(Canada only) 34
Instrument clusterAt a glance

SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
001F SRS warning lamp
R Air bags
R The air bag control unit with crash sensors
R Emergency Tensioning Devices for the
front seat belts and the outer seat belts in
the rear
R Belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp G
WARNING
The SRS self-chec khas detected a
malfunction if the 001FSRS indicator lamp:
R does no tlight up at all
R does not go out after approximately four
seconds after the engine is started
R lights up after the engin eis started or while
the vehicle is in motion
For your safety, Mercedes-Benz strongly
recommends that you have the system
checked as soon as possible at a qualified
specialist workshop. SRS may otherwise fail
to activate when it is needed in the event of
an accident, which could lead to serious or
fatal injuries. SRS might also be activated
unexpectedly and unnecessarily, which could
also result in injury.
In addition, work carried out improperly on
SRS may render SRS inoperative or cause
unintended air bag deployment. Work on the
SRS system should only be carried out by
qualified specialist personnel. Consult a
qualified specialist workshop.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz Center for details. USA only: for further information,
contact our Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372).
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 001F SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started.
The SRS components are in operational
readiness when the 001FSRS warning lamp
goes out while the engine is running.
Safety guidelines for seat belts,
Emergency Tensioning Devices (ETDs)
and air bags G
WARNING
R Damaged seat belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or supplied by an authorized
Mercedes-Benz Center.
R Air bags and pyrotechnic Emergency
Tensioning Devices (ETDs) contain
perchlorate material, which may require
special handling and regard for the
environment.C heck your national disposal
guidelines. California residents, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
R Air bags and ETDs are designed to function
on a one-time-only basis. An air bag or ETD
that has deployed must be replaced. PRE-
SAFE ®
has electrically operated reversible
belt tensioners in addition to the
pyrotechnic ETDs.
R Do not pass seat belts over sharp edges.
They could tear.
R Do not make any modification that could
change the effectiveness of the seat belts. Occupant safety
43Safety
Z

R
PRE-SAFE ®
Brake (Y page 73)
R STEER CONTROL (Y page 75)Important safety notes
If you fail to adapt your driving style or
become distracted, the driving safety
systems can neither reduce the risk of
accident nor override the laws of physics.
Driving safety systems are merely aids
designed to assist driving. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Always adapt your driving style to
suit the prevailing road and weather
conditions and maintain asafe distance from
the vehicle in front. Drive carefully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tires and
the road surface. Please pay special
attention to the note son tires,
recommended minimu mtire tread depths,
etc. (Y page 398).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible. ABS (Anti-lock Braking System)
Important safety notes i
Observe the "Importan tsafety notes"
sectio n(Ypage 66). G
WARNING
If ABSi s faulty, the wheels could lock when
braking. The steerability and braking
characteristics may be severely impaired.
Additionally, further driving safety systems
are deactivated. There is an increased danger
of skidding and accidents. Drive on carefully. Have ABS checked
immediately at a qualified specialist
workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 318) and
display messages which may be shown in the
instrument cluster (Y page 283).
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS works from a speed of about 5 mph
(8 km/h) upwards, regardless of road-surface
conditions. ABS works on slippery surfaces,
even if you only brake gently.
The yellow 0019ABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running.
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking
situation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
The pulsating brake pedal can be an
indication of hazardous road conditions, and
functions as a reminder to take extra care
while driving.
Off-road ABS An ABS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated on:
R
vehicles without the ON&OFFROAD
package (Y page 248)
R vehicles with the ON&OFFROAD package
(Y page 248) 66
Driving safety systemsSafety

tha
tare in the path of yourv ehicle for an
extended period of time.
Should you approach an obstacle and
Adaptive Brake Assist has detected a risk of
collision, Adaptive Brake Assist calculates the
braking force necessary to avoid a rear-end
collision. Should you apply the brakes
vigorously, Adaptive Brake Assist will
automatically increase the braking force to a
level suitable 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 rear-end
collision.
R no obstacle is detected in fron tofyour
vehicle.
Adaptive Brake Assist is then deactivated.
If Adaptive Brake Assist requires particularly
high brake pressure, preventive passenger
protection measures (PRE-SAFE ®
) are
deployed simultaneously.
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
covering the sensors
R snow or heavy rain
R 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
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensor checked at a qualified
specialist workshop. This also applies to
collisions 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"
section (Y page 66).
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
individually 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
transferred to the wheel or wheels with
traction.
Traction control remains active, even if you
deactivate ESP ®
. 70
Driving safety systemsSafety