radiator MERCEDES-BENZ M-Class 2014 W166 Owner's Manual

H
Handbrake see Parking brake
Hazard warning lamps ......................124
Headlamps Cleaning system (function) ............125
Fogging up ..................................... 127
see Automatic headlamp mode
Head restraints
Adjusting ....................................... 106
Adjusting (electrically). ..................107
Adjusting (manually). .....................107
Adjusting (rear) .............................. 108
Installing/removing (rear) ..............108
Luxury ............................................ 107
Heating
see Climate control
High-beam headlamps
Changing bulbs .............................. 131
Display message ............................ 296
Switching on/off ........................... 124
Hill start assist .................................. 161
HOLD function Deactivating ................................... 207
Display message ............................ 304
Function/notes ............................. 206
Hood
Closing .......................................... .365
Display message ............................ 313
Important safety notes ..................364
Opening ......................................... 364
Hydroplaning ..................................... 186I
Ignition lock see Key positions
Immobilizer .......................................... 76
Indicator lamps see Warning and indicator lamps
Insectp rotection on the radiator ....365
Instrument cluster Overview .................................. 33, 263
Warning and indicator lamps ...34, 316
Instrument cluster lighting ..............263
Interior lighting ................................. 127
Automatic control ..........................128Delayed switch-off (on-board
computer)
...................................... 276
Emergency lighting ........................129
Manual control ............................... 128
Overview ........................................ 127
Reading lamp ................................. 127
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 275
Setting the color of the ambient
lighting (on-board computer) .........275 J
Jack Storage location ............................ 380
Using ............................................. 423
Jump-start (engine)
see Jump starting (engine)
Jump starting (engine) ......................389 K
KEYLESS-GO Convenience closing feature ............96
Display message ............................ 315
Locking ............................................ 81
Start/Stop button .......................... 158
Starting the engine ........................160
Unlocking ......................................... 81
Keyp ositions
KEYLESS-GO .................................. 158
SmartKey ....................................... 157
Kickdown
Driving tips .................................... 168
Manual drive program ....................172
Knee bag .............................................. 47 L
Lamps see Warning and indicator lamps
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating .................273
Display message ............................ 305
Function/informatio n.................... 235
see Active Lane Keeping Assist 12
Index

PASSENGER AIR BAG OFF
Problem (malfunction) .....................53
Problems (malfunction) .................. 293
PASSENGE RAIR BAG OFF indicator
lamp ...................................................... 49
Plastic trim (cleaning instructions) .376
Power closing feature .........................88
Power washers .................................. 371
Power windows see Side windows
PRE-SAFE ®
(anticipatory occupant
protection) Display message ............................ 289
Operation ........................................ .54
PRE-SAFE ®
Brake
Activating/deactivating .................272
Display message ............................ 291
Function/notes ................................ 74
Warning lamp ................................. 328
Program selector button ..................169
Protection of the environment General notes .................................. 23
Pulling away
Trailer ............................................ 160
Pulling away (automatic
transmission) ..................................... 160 Q
Qualifie dspecialis tworkshop ...........28 R
RACETIMER (on-board computer) ....279
Radar sensor system Activating/deactivating .................276
Display message ............................ 304
Radiator cover ................................... 365
Radio Selecting astation ......................... 269
see separate operating instructions
Radio-controlled devices (installing) 362
Radio-wave reception/
transmission in the vehicle
Declaratio nofconformity ................ 27
Reading lamp ..................................... 127
Rear compartment Setting the airv ents...................... 153Rear fog lamp
Switching on/off ........................... 122
Rear seats
Adjusting ....................................... 108
Rear view camera
Cleaning instructions .....................374
Function/notes ............................. 220
Switching on/off ........................... 221
Rear-view mirror
Anti-glare (manual )........................ 114
Dipping (automatic) .......................115
Rear window defroster
Problem (malfunction) ...................151
Switching on/off ........................... 150
Rear window wiper
Replacing the wiper blade .............. 134
Switching on/off ........................... 133
Refrigerant (air-conditioning
system)
Important safety notes ..................451
Refueling
Fuel gauge ............................... 33, 263
Important safety notes ..................173
Refueling proces s.......................... 174
see Fuel
Remote control
Programming (garage door opener) 359
Reporting safety defects ....................28
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 300
Warning lamp ................................. 325
see Fuel
Residual heat (climate control) ........151
Restraint system see SRS (Supplemental Restraint
System)
Reversing feature
Panorama sliding sunroo f................ 98
Roller sunblinds ............................... 99
Side windows ................................... 94
Sliding sunroo f................................. 98
Tailgate ............................................ 90
Reversing lamps (display message) 297
Roadside Assistance (breakdown) ....25 16
Index

W
Warning and indicator lamps ABS ................................................ 319
Brakes ........................................... 318
Check Engine ................................. 325
Coolant .......................................... 326
Distance warning ........................... 328
DISTRONI CPLUS ........................... 328
ESP ®
.............................................. 321
ESP ®
OFF ....................................... 322
Fuel tank ........................................ 325
Overview .................................. 34, 316
PASSENGER AIRBAG OFF ................49
Reserve fuel ................................... 325
Seat bel t........................................ 317
SRS ................................................ 324
Tire pressure monitor ....................329
Warranty ............................................ 442
Washer fluid Display message ............................ 314
Wheel bol ttightening torque ...........426
Wheel chock ...................................... 422
Wheels Changing awheel .......................... 421
Checking ........................................ 399
Cleaning ......................................... 373
Cleaning (warning) .........................422
Emergency spare wheel .................436
Important safety notes ..................398
Interchanging/changing ................421
Mounting anew wheel ................... 425
Mounting awheel .......................... 422
Overview ........................................ 398
Removing awheel .......................... 425
Storing ........................................... 422
Tightening torque ........................... 426
Whee lsize/tir esize ....................... 426
Window curtain air bag
Display message ............................ 292
Operation ........................................ .48
Windows
see Side windows
Windshield
Defrosting ...................................... 149
Infrared reflective .......................... 362
Windshiel dwasher fluid
see Windshield washer system Windshiel
dwasher system
Adding washer fluid .......................368
Notes ............................................. 451
Windshiel dwipers
Problem (malfunction) ...................136
Rea rwindow wiper ........................ 133
Replacing the wiper blades ............133
Switching on/off ........................... 132
Winte rdriving
Slippery roa dsurface s................... 187
Snow chains .................................. 401
Winter operation
General notes ................................ 400
Overview ........................................ 400
Radiator cover ............................... 365
Snow drive program ....................... 245
Winter tires
M+S tires ....................................... 400
Wiper blades
Cleaning ......................................... 373
Important safety notes ..................133
Replacing ....................................... 133
Replacing (rea rwindow) ................ 134
Replacing (windshield )................... 134
Wooden trim (cleaning instructions) 376
Workshops see Qualified specialist workshop Z
ZONE function Switching on/off ........................... 14922
Index

Winter driving
General notes G
WARNING
If you shift dow nonaslippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine
braking on a slippery road surface. G
DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open
a window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
i Vehicles with adiesel engine: do not
cover the radiator, e.g. with a protective
cover. The measuring function of the
onboard diagnosis syste mmay otherwise
provide inaccurate values .Some of these
values are required by law and must
therefore always be accurate.
Observe the notes in the "Winter operation"
section (Y page 400).
Driving with summer tires Observe the notes in the "Winter operation"
section (Y
page 400). Slippery road surfaces G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine
braking on a slippery road surface.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Shift the transmission to position N.
i For more information on driving with
snow chains, see (Y page 401).
Drive particularly carefully on slippery road
surfaces. Avoid sudden acceleration, steering
and braking maneuvers. Do not use the cruise
control or DISTRONIC PLUS.
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Changes in the outside temperature are
displayed after a short delay.
Indicated temperatures just above the
freezing point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges. You
should pay special attention to road
conditions when temperatures are around
freezing point. Off-road driving
Important safety notes G
WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is
a risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle. Driving tips
187Driving and parking Z

Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
i Canada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference tha tmay
cause undesired operatio nofthe device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
Radar sensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers
and behind a cover in the radiator grill. Make
sure that the bumpers and the cover in the
radiator grill are free of dirt, ice or slush. The
rear sensors must not be covered, e.g. by
bicycle racks or overhanging loads. Following
a severe impact or in the event of damage to
the bumpers, have the function of the radar
sensors checked at a qualified specialist
workshop. Active Blind Spot Assist may
otherwise no longer work properly.
Monitoring area G
WARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient
distance on the side for other traffic or
obstacles. Active Blind Spot Assist monitors the area up
to 10 ft (3.0 m) behind your vehicle and
directly next to your vehicle, as shown in the
diagram. For this purpose, Active Blind Spot
Assist uses radar sensors in the rear bumper.
In particular, the detection of obstacles can
be impaired if:
R
dirt on the sensors or anything else
covering the sensors
R poor visibility, e.g. due to fog, heavy rain,
snow or spray
Vehicles in the monitoringr ange are then not
indicated.
Active Blind Spot Assist may not detect
narrow vehicles, such as motorcycles or
bicycles, or may only detect them too late.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane .This may
be the case if there are vehicles at the inner
edge of your lane.
Due to the nature of the system:
R warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R warnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time. 238
Driving systemsDriving and parking

Display messages Possible causes/consequences and
0001 Solutions
PRE-SAFE
Functions
Currently Limited
See Operator's
Manual Vehicles with the Active Driving Assistance package:
PRE-SAFE
®
Brake is temporarily inoperative. Possible causes are:
R the function is impaired due to heavy rain or snow.
R the sensors in the radiato rgrill and the bumper are dirty.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R AMG vehicles: ESP ®
is deactivated.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
When the causes stated above no longer apply, the display
message disappears.
PRE-SAFE ®
Brake is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 179).
X Clean the sensors in the radiator grill and the bumper
(Y page 374).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 72). PRE-SAFE
Functions Limited
See Operator's
Manual Vehicles without the Active Driving Assistance package: Adaptive
Brake Assist is faulty. The distance warning function may also have
failed.
Vehicles with the Active Driving Assistance package:
PRE-SAFE
®
Brake is faulty. BAS PLUS or the distance warning
function may also have failed.
X Visit a qualified specialist workshop. 001F
SRS Malfunction
Service Required There is a malfunction in the SRS (Supplemental Restraint
System).
The
001F warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
Further information on occupant safety (Y page 43). Display messages
291On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
000E
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolan
tis too hot.
Aw arning tone also sounds.
G WARNING
Do no tdrive when youre ngine is overheated. Thi scan cause some
fluids which may have leaked into the engine compartmen tto
catch fire.
Stea mfrom the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 179).
X Waitu ntil the engine has cooled down.
X Make sure tha tthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). 000B The battery is not being charged.
Aw
arning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull ove rand stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Ope nthe hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. Display messages
299On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
DISTRONIC PLUS
Currently
Unavailable See
Operator's Manual DISTRONIC PLU
Sis temporarily inoperative. Possible causes are:
R the function is impaired due to heavy rain or snow.
R the sensors in the radiator grill and the bumper are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
Aw arning tone also sounds.
When the causes stated above no longer apply, the display
message disappears.
DISTRONIC is operational again.
If the display message does no tdisappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 179).
X Clean the sensors in the radiator grill and the bumper
(Y page 374).
X Restar tthe engine. DISTRONIC PLUS
Inoperative DISTRONIC PLUS is defective.
BAS PLUS (Brake Assist PLUS) and PRE-SAFE
®
Brake may be
inoperative as well.
Aw arning tone also sounds.
X Visi taqualified specialist workshop. DISTRONIC PLUS
Passive You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC PLUS
- - - mph An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 194). 308
Display messagesOn-board computer and displays

Problem Possible causes/consequences and
0001 Solutions
000E
The red coolant
warning lamp comes on
while the engine is
running. The coolant level is too low.
!
Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 179).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 367).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is
under 248 ‡(120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 000E
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow to the engine radiator may be blocked or the coolant level
may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive whe nyour engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury. Warning and indicator lamps in the instrument cluster
327On-board computer and displays Z

Problem Possible causes/consequences and
0001 Solutions
X
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 179).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 367).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. Driving systems
Problem Possible causes/consequences and
0001 Solutions
000E
The red distance
warning function
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.
You are approaching a vehicle or a stationary obstacle in you
rline
of travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
Further information on DISTRONIC PLUS (Y page 194).
Further information on PRE-SAFE ®
Brake (Y page 74).
Further information on the distance warning function
(Y page 69). 328
Warning and indicator lamps in the instrument clusterOn-board computer and displays