coolant temperature MERCEDES-BENZ CLS-Class 2015 W218 Owner's Manual

Child-proof locks
Important safety notes .................... 68
Rear door s ...................................... .69
Children
Special seat belt retractor .............. .64
Cigarette lighter ................................ 297
Cleaning
Mirror turn signal .......................... .321
Climate control
Automatic climate control (3-
zone) .............................................. 136
Controlling automatically .............. .140
Cooling with air dehumidification .. 138
Defrosting the windows ................. 143
Defrosting the windshield .............. 142
Dual-zone automatic climate con-
trol ................................................. 133
General notes ................................ 132
Indicator lamp ................................ 140
Information about using auto-
matic climate control ..................... 138
Information about using dual-zone
automatic climate control .............. 134
Maximum cooling .......................... 143
Overview of systems ..................... .132
Problem with the rear window
defroster ........................................ 144
Problems with cooling with air
dehumidification ............................ 140
Rear control panel ......................... 136
Refrigerant ..................................... 392
Refrigerant filling capacity ............. 392
Setting the air distribution ............. 141
Setting the air vents ..................... .145
Setting the airflow ......................... 142
Setting the climate mode (AIR
FLOW) ............................................ 140
Setting the temperature ................ 141
Setting the temperature with 3-
zone automatic climate control ..... 141
Setting the temperature with dual- zone automatic climate control ..... 141
Switching air-recirculation mode
on/off ............................................ 144
Switching on/off ........................... 138
Switching residual heat on/off ...... 144
Switching the rear window
defroster on/off ............................ 143 Switching the ZONE function on/
off .................................................
.142
Cockpit
Overview .......................................... 32
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 381
see Emergency spare wheel
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 236
Display message ............................ 249
Operation/notes .............................. 73
COMAND display
Cleaning ......................................... 322
Combination switch .......................... 124
Consumption statistics (on-board
computer) .......................................... 230
Convenience box ............................... 291
Convenience closing feature .............. 98
Convenience opening feature ............ 98
Coolant (engine)
Checking the level ......................... 315
Display message ............................ 258
Filling capacity ............................... 391
Important safety notes .................. 390
Temperature (on-board computer, AMG vehicles) ................................ 242
Temperature gauge ........................ 226
Warning lamp ................................. 280
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Display message ............................ 255
Function/notes ............................ .125
Crash-responsive emergency light-
ing ....................................................... 128
Cruise control
Activation conditions ..................... 179
Cruise control lever ....................... 179
Deactivating ................................... 180
Display message ............................ 266
Driving system ............................... 178
Function/notes ............................ .178
Important safety notes .................. 178
Setting a spee d.............................. 180 Index
7

Buttons (on-board computer) ......... 227
Cleaning ........................................ .323
Important safety notes .................. 113
Paddle shifters ............................... 163
Steering wheel heating .................. 114
Storing settings (memory func-
tion) ............................................... 119
Steering wheel heating
Problem (malfunction) ................... 115
Switching on/off ........................... 114
Steering wheel paddle shifters ........163
Stopwatch (RACETIMER) ................... 242
Stowage areas ................................... 286
Stowage compartments
Armrest (under) ............................ .288
Center console .............................. 288
Center console (rear) ..................... 289
Cup holders ................................... 293
Eyeglasses compartment .............. .287
Glove box ....................................... 287
Important safety information ......... 286
Rear ............................................... 289
Stowage net ................................... 289
Under driver's seat/front-
passenger sea t.............................. 288
Stowage net ....................................... 289
Stowage well beneath the trunk
floor .................................................... 292
Summer tires ..................................... 346
Sun visor ............................................ 295
Surround lighting (on-board com-
puter) .................................................. 239
Suspension tuning
AIRMATIC ...................................... 194
AMG adaptive sport suspension
system ........................................... 195
SETUP (on-board computer) .......... 242
Switching air-recirculation mode
on/off ................................................. 144 T
Tachometer ........................................ 226
Tail lamps
Display message ............................ 256
Tank
see Fuel tank Tank content
Fuel gauge ....................................... 33
Technical data
Capacities ...................................... 387
Emergency spare wheel ................. 382
Information .................................... 384
Tires/wheels ................................. 372
Vehicle data ................................... 392
Telephone
Accepting a cal l............................. 234
Display message ............................ 272
Menu (on-board computer) ............ 233
Number from the phone book ........ 234
Redialing ........................................ 234
Rejecting/ending a call ................. 234
Temperature
Coolant .......................................... 226
Coolant (on-board computer,
AMG vehicles) ................................ 242
Engine oil (on-board computer,
AMG vehicles) ................................ 242
Outside temperature ...................... 227
Setting (climate control )................ 141
Timing (RACETIMER) ......................... 242
Tire pressure
Calling up (on-board computer) ..... 352
Checking manually ........................ 351
Display message ............................ 267
Maximum ....................................... 350
Not reached (TIREFIT) .................... 330
Note s............................................. 349
Reached (TIREFIT) .......................... 330
Recommended ............................... 348
Tire pressure loss warning system
General notes ................................ 351
Important safety notes .................. 351
Restarting ...................................... 352
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 354
Function/note s............................. 352
General notes ................................ 352
Important safety notes .................. 352
Radio type approval for the tire
pressure monitor ........................... 355
Restarting ...................................... 355
Warning lamp ................................. 283
Warning message .......................... 354 18
Index

Instrument cluster
Displays
Function Page
:
Speedometer with seg-
ments
227
;
Multifunction display 229
=
Tachometer 226
?
Coolant temperature 226 Function Page
A
Fuel gage
Fuel filler flap location indi-
cator
8: the fuel filler
cap is on the right-hand
side. Information on displaying the outside tem-
perature in the multifunction display can be
found under "Outside temperature display"
(Y
page 227).
i Adjusting the instrument cluster lighting
using the on-board computer
(Y page 238). Instrument cluster
33At a glance

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 26). Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make sure your vehicle is operating safely at all
times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (Y page 33). Displays and operation
Coolant temperature display
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could 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.
! A display message is shown if the coolant
temperature is too high.
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 left-hand side
(Y page 33).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature 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. 226
Displays and operationOn-board computer and displays

AMG menu in AMG vehicles
AMG displays :
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
B Status indicator for ECO start/stop func-
tion (Y page 153)
X Press =or; on the steering wheel
to select the AMG AMGmenu.
Upshift indicator: upshift indicatorUP
UP=
indicates that the engine has reached the
overrevving range when in the manual drive
program.
Engine oil temperature: when the engine
and transmission are at normal operating
temperature, oil temperature ?is displayed
in white in the multifunction display.
If the multifunction display shows oil temper- ature ?in blue, the engine or the transmis-
sion are not yet at normal operating temper-
ature. Avoid driving at full engine output dur-
ing this time.
If the conditions for the ECO start/stop func- tion are fulfilled and the vehicle is stationary, status indicator Bis shown. SETUP :
Drive program (C C/SS+ SS+ /MM)
; ESP ®
mode ON
ON/OFF
OFF or SPORT handling
mode SPORT
SPORT
= Suspension setting COMFORT
COMFORT/SPORT
SPORT/
SPORT +
SPORT +
SETUP shows the drive program, the ESP ®
(Electronic Stability Program) mode and the
suspension tuning.
X Press the =or; button on the steer-
ing wheel to select the AMG
AMGmenu.
X Press the 9button repeatedly until
SETUP is displayed.
or X Briefly press the AMG button on the center
console (Y page 195).
RACETIMER Displaying and starting RACETIMER
:
Lap
; RACETIMER
The RACETIMER is only intended for use on a closed race circuit. Do not use the function on
public roads. 242
Menus and sub
menusOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Adaptive Highbeam
Adaptive Highbeam
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Adaptive Highbeam Assist is deactivated and temporarily inoper-
ative. 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
Adaptive Highbeam
HighbeamAssist
Assistavailable
available again
againmessage is dis-
played.
Adaptive Highbeam Assist is operational again. Adaptive Highbeam Adaptive Highbeam
Assist Inoperative Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Engine
Display messages
Possible causes/consequences and
M MSolutions +
Check Coolant Check Coolant
Level See Opera‐ Level See Opera‐
tor's Manual tor'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 315).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. ? The fan motor is 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 moun-
tainous terrain, and stop-and-go traffic. 258
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions ?
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your 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.
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 170).
X Wait until the engine has cooled down.
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 display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, 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 †). #
See See
Operator's
Operator's Man‐
Man‐
ual
ual The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
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 170).
X Consult a qualified specialist workshop. Display
messages
259On-board computer and displays Z

Engine
Problem
Possible causes/consequences and
M
MSolutions ;
The yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
R in the fuel system
The emission limit values may be exceeded and the engine may be
in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you must immediately visit a qualified special-
ist workshop as soon as the yellow Check Engine warning lamp
lights up. This is due to the legal requirements in effect in these
states. If in doubt, check whether such legal regulations apply in the state in which you are currently driving. 8
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.
The fuel level has dropped into the reserve range.
X Refuel at the nearest gas station. 8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion.
In addition, the
;
Check Engine warning
lamp may light up. The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist work-
shop. ?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the start of the scale. The temperature sensor for the coolant temperature gauge is
defective.
The coolant temperature is no longer being monitored. There is a risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away (Y page 170).
X Consult a qualified specialist workshop. 280
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Problem
Possible causes/consequences and
M
MSolutions ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
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 170).
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 315).
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
below 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 moun-
tainous terrain, and stop-and-go traffic. ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The air-
flow 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 when your 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.
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 170).Warning and indicator lamps in the instrument cluster
281On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions 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 315).
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 below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic. Driving systems
Problem
Possible causes/consequences and
M MSolutions ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. A warning tone also
sounds. You are approaching a vehicle, a pedestrian or a stationary obsta-
cle in your line 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.
Observe the additional information on PRE‑ SAFE®
Brake
(Y page 79).
Observe the additional information on the distance warning func-
tion of COLLISION PREVENTION ASSIST PLUS (Y page 73).282
Warning and indicator lamps in the instrument clusterOn-board computer and displays