2017 MERCEDES-BENZ CLS-Class coolant temperature

Controller.......................................... .237
Convenience box ............................... 246
Convenience closing feature .............. 88
Convenience opening feature ............ 88
Coolant (engine)
Checking the level ......................... 268
Display message ............................ 213
Filling capacity ............................... 327
Important safety notes .................. 326
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 01
Temperature gauge ........................ 188
Warning lamp ................................. 232
Cooling
see Climate control
Copyright ............................................. 32
Cornering light function
Display message ............................ 212
Function/notes .............................1 07
Cruise control
Activation conditions ..................... 148
Cruise control lever ....................... 148
Deactivating ................................... 149
Display message ............................ 220
Driving system ............................... 148
Function/notes .............................1 48
Important safety notes .................. 148
Setting a speed .............................. 149
Storing and maintaining current
speed ............................................. 148
Cup holder
Center console .............................. 249
Center console in the rear com-
partment ........................................ 249
Important safety notes .................. 248
Rear compartment ......................... 249
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29
D
Dashboard
see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 193 Daytime running lamps
Display message ............................ 212
Function/notes .............................1 05
Switching on/off (on-board com-
puter) ............................................. 198
Declarations of conformity ................. 28
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 198
Interior lighting .............................. 199
Diagnostics connection ......................29
Digital Operator's Manua l
Help ................................................ .24
Introduction .....................................2 4
Digital speedomete r........................ .191
DIRECT SELECT lever
Automatic transmission ................. 130
Display messages
ASSYST PLUS ................................ 269
Calling up (on-board computer) ..... 203
Driving systems .............................2 15
Engine ............................................ 213
General notes ................................ 203
Hiding (on-board computer) ........... 203
KEYLESS-GO .................................. 225
Lights ............................................. 212
Safety systems .............................. 204
SmartKey ....................................... 225
Tires ............................................... 221
Vehicle ...........................................2 23
Distance recorder .............................1 90
Distance warning (warning lamp) .... 234
Distance warning function
Function/notes ................................ 68
DISTRONIC PLUS
Activating ....................................... 151
Activation conditions ..................... 151
Deactivating ................................... 155
Display message ............................ 218
Displays in the multifunction dis-
play ................................................ 154
Function/note s ............................. 149
Imp
ortant safety notes .................. 150
Setting the specified minimum
distance ......................................... 153
Stopping ........................................ 153
8Index

see also Digital Operator's Man-
ual .................................................. 236
Switching between mobile
phones ...........................................241
Temperature
Coolant .......................................... 188
Coolant (on-board computer,
Mercedes-AMG vehicles) ...............2 01
Engine oil (on-board computer,
Mercedes-AMG vehicles) ...............2 01
Outside temperature ......................1 88
Setting (climate control) ................ 117
Through-loading feature ................... 245
Timing (RACETIMER) ......................... 201
Tire pressure
Calling up (on-board computer) ..... 299
Checking manually ........................ 298
Display message ............................ 221
Maximum ....................................... 298
Not reached (TIREFIT) .................... 281
Notes ............................................. 297
Reached (TIREFIT) .......................... 281
Recommended ............................... 295
Using the TIREFIT kit ......................2 80
Tire pressure loss warning system
General notes ................................ 298
Important safety notes .................. 298
Restarting ...................................... 299
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 301
Function/notes .............................2 99
General notes ................................ 299
Important safety notes .................. 300
Radio type approval for the tire
pressure monitor ........................... 302
Restarting ...................................... 302
Warning lamp ................................. 235
Warning message .......................... 301
Tire-change tool kit ........................... 277
TIREFIT kit .......................................... 279
Important safety notes .................. 279
Storage location ............................ 277
Tire pressure not reached .............. 281
Tire pressure reached .................... 281
Using ............................................. 280
Tires
Aspect ratio (definition) ................. 311 Average weight of the vehicle
occupants (definition) .................... 310
Bar (definition) ............................... 310
Changing a wheel .......................... 312
Characteristics .............................. 310
Checking ........................................ 292
Curb weight (definition) ................. 311
Definition of terms ......................... 310
Direction of rotation ...................... 313
Display message ............................ 221
Distribution of the vehicle occu-
pants (definition) ............................ 312
DOT (Department of Transporta-
tion) (definition) ............................. 310
DOT, Tire Identification Number
(TIN) ............................................... 309
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 310
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 311
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 311
Important safety notes .................. 292
Increased vehicle weight due to
optional equipment (definition) ...... 310
Information on driving .................... 292
Kilopascal (kPa) (definition) ........... 311
Labeling (overview) ........................ 307
Load bearing index (definition) ...... 312
Load index ..................................... 309
Load index (definition) ................... 311
Maximum load on a tire (defini-
tion) ............................................... 311
Maximum loaded vehicle weight
(definition) ..................................... 311
Maximum permissible tire pres-
sure (definition) ............................. 311
Maximum tire load ......................... 309
Maximum tire load (definition) ....... 311
MOExtended tires .......................... 294
Optional equipment weight (defi-
nition) ............................................ 312
PSI (pounds per square inch) (def- inition) ........................................... 311
Replacing ....................................... 312
Service life ..................................... 293
Si

dewall (definition) ....................... 311
Speed rating (definition) ................ 311
20Index

ProblemPossible causes/consequences andMSolutions
The engine is not running
smoothly and is misfir-
ing.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
XHave the cause rectified immediately at a qualified specialist work-
shop.
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.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 268). Observe the warning notes
as you do so and add coolant if necessary.
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Selector lever (Mercedes-AMG vehi-
cles)
Overview of transmission positions
jPark position with parking lock
kReverse gear
iNeutral
hDrive
Transmission position and drive pro-
gram display
The current transmission position and drive pro-
gram appear in the multifunction display.
Automatic transmission129
Driving and parking
Z

Important safety notes
GWARNING
If you operate information systems and com-
munication equipmen tintegrate din th evehi-
cle while driving ,you will be distracte dfrom
traffic conditions. You could also lose control
of th evehicle. Ther eis aris kof an accident.
Only operate th eequipmen twhen th etraffic
situation permits. If you are no tsur ethat this
is possible ,park th evehicl epayin gattention
to traffic condition sand operate th eequip-
men twhen th evehicl eis stationary.
You must observ eth elegal requirements for th e
country in whic hyou are currentl ydriving when
operating th eon-board computer.
GWARNIN G
If th einstrumen tcluste rhas faile dor mal-
functioned, you may no trecognize function
restriction sin systems relevan tto safety. The
operating safet yof your vehicl emay be
impaired .Ther eis aris kof an accident.
Drive on carefully. Hav eth evehicl echecke d
at aqualified specialist workshop immedi-
ately.
The on-board computer only shows message sor
warning sfrom certain systems in th emultifunc-
tion display. You should therefor emak esur e
your vehicl eis operating safely at all times .
If th eoperating safet yof your vehicl eis
impaired ,pull ove ras soo nas it is saf eto do so.
Contac t aqualified specialist workshop.
Fo ran overview, see th einstrumen tpanel illus-
tration (
Ypage 34).
Displays and operation
Speedometer with segments
The segments in th espeedometer indicat e
whic hspee drange is available.
RCruis econtrol activated (Ypage 148):
The segments ligh tup from th estore dspee d
to th een dof th escale.
RDISTRONI CPLU Sactivated (Ypage 149): On
eor two segments in th eset spee drange
ligh tup.
RDISTRONI CPLU Sdetects avehicl ein fron t
moving mor eslowly than th estore dspeed:
The segments between th espee dof th evehi-
cle in fron tand th estore dspee dligh tup.
Tachometer
!
Do no tdriv ein th eoverrevving range, as this
could damag eth eengine.
The red ban din th etachometer indicates th e
engine's overrevving range.
The fuel suppl yis interrupted to protect th e
engin ewhen th ered ban dis reached.
Outside temperature display
You should pay special attention to road condi-
tion swhen temperatures are aroun dfreezing
point.
Bea rin min dthat th eoutside temperature dis-
play indicates th etemperature measured and
does no trecord th eroad temperature.
The outside temperature display is in th emulti-
function display (
Ypage 190).
The multifunction display shows changes in th e
outside temperature wit h adelay.
Coolant temperature gauge
GWARNIN G
Opening th ehoo dwhen th eengin eis over-
heated or when there is afir ein th eengin e
compartmen tcould expos eyou to hot gase s
or other servic eproducts .Ther eis aris kof
injury.
Let an overheate dengin ecool down before
opening th ehood. If there is afir ein th e
engin ecompartment, keep th ehoo dclosed
and contact th efir edepartment.
!A display message is shown if th ecoolan t
temperature is to ohigh .
If th ecoolan ttemperature is ove r24 8 ‡
(12 0†), do no tcontinue driving .The engin e
will otherwise be damaged.
188Displays and operation
On-board computer and displays

The coolant temperature gage is in the instru-
ment cluster on the left-hand side (Ypage 34).
Under normal operating conditions and with the
specified coolant level, the coolant temperature may rise to 248 ‡ (120 †).
Operating the on-board computer
Overview
:Multifunction display
;Right control panel
=Left control panel
XTo activate the 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.
Vehicles with a COMAND multimedia sys-
tem: you can find further information on the
Voice Control System in the separate operat-
ing instructions.
Vehicles with Audio 20 multimedia sys-
tem: you can find further information on
voice-operated control for navigation in the
manufacturer's operating instructions.
Left control panel
=
;RCalls up the menu and menu bar
9
:Press briefly:
RScrolls in lists
RSelects a submenu or function
RIn the Audiomenu: selects the
previous or next station, when the
preset list or station list is active,
or an audio track or video scene
RIn the Tel(telephone) menu:
switches to the phone book and
selects a name or telephone num-
ber
9
:Press and hold:
RIn the Audiomenu: selects a pre-
set list or a station list in the
desired frequency range, or an
audio track or video scene using
rapid scrolling
RIn the Tel(Telephone) menu:
starts rapid scrolling if the phone
book is open
aRConfirms the selection or display
message
RIn the Tel(Telephone) menu:
switches to the telephone book
and starts dialing the selected
number
%Press briefly:
RBack
RSwitches off voice-operated navi-
gation or the Voice Control System
RHides display messages or calls up
the last Tripmenu function used
RExits the telephone book/redial
memory
%Press and hold:
RCalls up the standard display in the
Tripmenu
Displays and operation189
On-board computer and displays
Z

Engine
Display messagesPossible causes/consequences andMSolutions
+
CheckCoolantLevelSee Operator's Man‐ual
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.
XAdd coolant, observing the warning notes before doing so
(Ypage 268).
XIf you need to add coolant more often than usual, have the engine
coolant system checked at a qualified specialist workshop.
?The fan motor is malfunctioning.
XAt coolant temperatures below 248 ‡(120 †), drive to the nearest
qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
?
Coolant Too HotStop Vehicle TurnEngine Off
The coolant is too hot.
A warning tone also sounds.
GWARNING
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.
XPull over and stop the vehicle safely and switch off the engine, pay- ing attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 141).
XWait until the engine has cooled down.
XMake sure that the air supply to the engine radiator is not blocked,e.g. by snow, slush or ice.
XDo 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.
XPay attention to the coolant temperature gauge.
XIf the temperature increases again, visit a qualified specialist work-
shop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †).
Display messages213
On-board computer and displays
Z

Engine
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
;NThe yellow Check Engine warning lamp lights up while the engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system
Rin the fuel system
The emission limit values may be exceeded and the engine may be in emergency
mode.
XVisit a qualified specialist workshop immediately.
iIn some states, you must immediately visit a qualified specialist 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.
8N The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
8N 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 filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visit a qualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gage is at the start of the scale.
The temperature sensor for the coolant temperature gauge is malfunctioning.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
XPull 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.
XSecure the vehicle against rolling away (Ypage 141).
XConsult a qualified specialist workshop.
232Warning and indicator lamps in the instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
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 defective.
The coolant is too hot and the engine is no longer being cooled sufficiently.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 141).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 268).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
XDo not start the engine again until the coolant temperature is below 248 ‡
(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain,
and stop-and-go traffic.
?N 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.
GWARNING
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.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 141).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 268).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
Warning and indicator lamps in the instrument cluster233
On-board computer and displays
Z