2014 MERCEDES-BENZ M-Class coolant temperature

Limiting the opening angle
...............93
Opening/closing (automatically
from inside) ...................................... 92
Opening/closing (automatically
from outside) ................................... 91
Opening/closing (from outside) .......90
Opening dimensions ......................452
Power closing .................................. 88
Tail lamps
Display message ............................ 296
Tank content
Fuel gauge ............................... 33, 263
Technical data
Capacities ...................................... 444
Emergency spare wheel .................438
Information .................................... 442
Tires/wheels ................................. 426
Trailer loads ................................... 456
Vehicle data ................................... 452
TELEAID
Call priority .................................... 354
Downloading destinations
(COMAND) ..................................... 354
Downloading route s....................... 358
Emergency call .............................. 351
Geo fencing ................................... 358
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
Tele Aid
General notes ................................ 350
Telephone
Accepting acall............................. 271
Display message ............................ 314
Menu (on-board computer) ............270
Number from the phone book ....... .271
Redialing ........................................ 271
Rejecting/ending acall................. 271Telescopic 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) ................147
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........76
Immobilize r...................................... 76
Through-loading ................................ 335
Time see separate operating instructions
Timing (RACETIMER) .........................279
TIREFIT kit .......................................... 383
Tire pressure Calling up (on-board computer) .....406
Checking manually ........................405
Display message ............................ 310
Important safety notes ..................406
Maximum ....................................... 404
Notes ............................................. 403
Not reached (TIREFIT) ....................384
Reached (TIREFIT) ..........................384
Recommended ............................... 402
Tire pressure loss warning
system
Important safety notes ..................405
Restarting ...................................... 406
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 408
Function/notes ............................. 406
General notes ................................ 406
Important safety notes ..................407
Restarting ...................................... 409
Warning lamp ................................. 329
Warning message .......................... 408
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 Index
19

Instrumen
tcluster Displays and controls
Function Page
0002
Speedometer with
segments
264
0003
Fuel gauge
0023
Tachometer
264 Function Page
0022
Coolant temperature 263
0020
Multifunction display 265
0021
Instrument lighting 263Instrument cluster
33At a glance

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Try to start the engine again (Y page 159). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 389).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 367). Observe the warning
notes as you do so and add coolant if necessary. 164
DrivingDriving and parking

R
Secure any objects on the traile rto prevent
the cargo from slipping when the vehicle is
in motion.
R If you couple up a trailer, regularly check
that the cargo is securely fastened and
make sure that the trailer lamps and (if
applicable) the trailer brakes are
functioning correctly.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
R If possible, avoid abrupt braking. Depress
the brake pedal moderately at first, so that
the trailer can activate its own brakes. Then
increase the pressure on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears on uphill or downhill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
Al ower gear and lower speed reduce the
risk of engine failure.
R When driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the
blower fan and the interior temperature to
maximum.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination. Due to the length of your vehicle/trailer
combination, you will have to travel an
additional distance beyond the vehicle you
are overtaking before returning to the
previous lane. Decoupling
atrailer G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overru nbrake
is engaged. G
WARNING
Vehicles with level control:
The vehicle is lowered as soon as you
disconnect the trailer cable. This could result
in yourl imbs or those of other people that are
betwee nthe vehicle body and tires or
underneath the vehicle being trapped. There
is a risk of injury.
Make sure that nobody is in the immediate
vicinity of the wheel housings or under the
vehicle when you disconnectt he trailer cable.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the
rebounding of the overrun brake.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Close all doors and the tailgate.
X Apply the trailer's parking brake.
X Detach the trailer cable and decouple the
trailer.
X Switch off the engine. 258
Towing
atrailerDriving an d parking

Displays and operation
Instrument cluster
Instrument cluster: miles
0002
Speedometer with segments (Y page 264)
0003 Fuel gauge
0023 Tachometer (Y page 264)
0022 Coolant temperature ( Ypage 263)
0020 Multifunction display (Y page 265)
0021 Instrumen tcluster lighting (Y page 263) Instrument cluster lighting
The lighting in the instrumen tcluster, in the
displays and the controls in the vehicle
interior can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 33).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to 0006,0016or
000D, the brightness is dependent upon
the brightness of the ambien tlight.
i The light sensor in the instrumen tcluster
automatically controls the brightness of
the multifunction display. In daylight, the displays in the instrument
cluster are not illuminated. Coolant temperature display
G
WARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartmen tcould expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
! Adisplay message is shown if the coolant
temperature is too high. Displays and operation
263On-board computer and displays Z

If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side
(Y page 33).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road
conditions when temperatures are around
freezing point.
The outside temperature display is in the
multifunction display (Y page 265).
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 191):
The segments lightu p from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 194):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects avehicle in front:
The segments between the speed of the
vehicle in fron tand the stored speed light
up. Operating the on-board computer
Overview 0002
Multifunctio ndisplay
0003 Switches on the Voice Control System;
see the separate operating instructions
0023 Right control panel
0022 Left control panel
0020 Back button
X To activat ethe on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. 264
Displays and operationOn-board computer and displays

displayed in red in the multifunction
display.
X Press the 000Bbutton to save the setting. 0002
To fold the exterior mirrors in or out
If you have switched the Auto. MirrorFolding on and you fold the exterior mirrors
in using button 0002, they will not fold out
automatically (Y page 115).
You can then only fold out the exterior mirrors
using button 0002.
Restoring the factory settings X
Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Factory Setting submenu.
X Press 000Bto confirm.
The Reset All Settings? message
appears.
X Press the 0004or0003 button to select
No or
Yes .
X Press 000Bto confirm the selection.
If you select Yes , the multifunction display
shows a confirmation message.
For safety reasons, the Daytime RunningLights function in the
Lights submenu is
only reset if the vehicle is stationary. ON&OFFROAD menu
Example: multifunction display
X
Press the 0002or0005 button on the
steering wheel to select the ON&OFFROAD menu.
You can set the curren tsettings to appear in
the ON&OFFROAD menu:
R On-road program (Y page 243)
R Off-road program (Y page 248) AMG menu in AMG vehicles
AMG displays 0002
Digital speedometer
0003 Gear indicator
0023 Upshift indicator
0022 Engine oil temperature
0020 Coolant temperature
0021 Status indicator (indicator not available in
USA/Canada)
X Press 0002or0005 on the steering wheel
to select the AMG menu.
Upshift indicator UP 0023
indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP 0023
fades out other
messages until you have shifted up.
If the engine oil temperature is below 176 ‡
(80 †) the oil temperature is shown in blue. 278
Menus and submenusOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
0004
Auto
Lamp Function
Inoperative The ligh
tsensor is defective.
X Visit a qualified specialist workshop. 0004
Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to 0006.Adaptive Highbeam
Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual Adaptive Highbeam Assist is deactivated and temporarily
inoperative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
X Clean the windshield.
If the system detects that the camera is fully operational again,
the Adaptive Highbeam Assist Now Available message is
displayed.
Adaptive Highbeam Assist is operational again. Engine
Display messages Possible causes/consequences and
0001 Solutions
000F
Check Coolant
Level See
Operator's Manual 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.
X Add coolant, observing the warning notes before doing so
(Y page 367).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. 000E The fan moto
ris faulty.
X At coolant temperatures below 248 ‡ (120 †) 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. 298
Display messagesOn-board computer and displays