coolant temperature MERCEDES-BENZ E-Class COUPE 2016 C207 Owner's Manual

On the front-passenger seat ............ 60
Rearward-facing restraint system ....60
Top Tether ....................................... 59
Child-proof locks
Important safety notes .................... 61
Children
Special seat belt retractor ............... 57
Cigarette lighter ................................ 242
Cleaning
Mirror turn signal ........................... 262
Climate control
Automatic climate control (3-
zone) ..............................................1 13
Controlling automatically ...............1 15
Cooling with air dehumidification .. 115
Defrosting the windows ................. 118
Defrosting the windshield .............. 117
Dual-zone automatic climate con-
trol ................................................. 112
General notes ................................ 111
Indicator lamp ................................ 115
Information about using auto-
matic climate control ..................... 114
Maximum cooling .......................... 117
Overview of systems ......................1 11
Problem with the rear window
defroster ........................................ 119
Problems with cooling with air
dehumidification ............................ 115
Rear control panel ......................... 113
Refrigerant ..................................... 313
Refrigerant filling capacity ............. 313
Setting the air distribution ............. 116
Setting the air vents ......................1 20
Setting the airflow ......................... 117
Setting the climate mode ...............1 16
Setting the temperature ................ 116
Setting the temperature with 3-
zone automatic climate control ..... 116
Setting the temperature with dual-
zone automatic climate control ..... 116
Switching air-recirculation mode
on/off ............................................ 119
Switching on/off ........................... 114
Switching residual heat on/off ...... 119
Sw

itching the rear window
defroster on/off ............................ 118 Switching the ZONE function on/
off ..................................................1
17
Cockpit
Overview .......................................... 32
see Instrument cluster
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 192
Display message ............................ 200
Operation/notes .............................. 65
COMAND
Switching on/off ........................... 230
COMAND display
Cleaning ......................................... 263
Combination switch .......................... 104
Connecting a USB device
see also Digital Operator's Man-
ual ..................................................2 29
Consumption statistics (on-board
computer) .......................................... 187
Controller ...........................................2 30
Convenience closing feature .............. 84
Convenience opening feature ............ 83
Coolant (engine)
Checking the level ......................... 256
Display message ............................ 207
Filling capacity ............................... 312
Important safety notes .................. 312
Temperature gauge ........................ 184
Warning lamp ................................. 225
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function
Display message ............................ 206
Function/notes .............................1 05
Cruise control
Activation conditions ..................... 145
Cruise control lever ....................... 145
Deactivating ................................... 146
Display message ............................ 213
Driving system ............................... 145
Function/notes .............................1 45
Important safety notes .................. 145
Setting a speed .............................. 146
Storing and maintaining current
speed ............................................. 145
6Index

Redialing ........................................ 191
Rejecting/endin g acall ................ .190
see also Digital Operator's Man-
ual ..................................................2 29
Switching between mobile
phones ...........................................2 34
Temperature
Coolant .......................................... 184
Outside temperature ......................1 84
Setting (climate control) ................ 116
Tire pressure
Calling up (on-board computer) ..... 287
Checking manually ........................ 287
Display message ............................ 214
Maximum ....................................... 287
Not reached (TIREFIT) .................... 269
Notes ............................................. 286
Reached (TIREFIT) .......................... 269
Recommended ............................... 284
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 289
Function/notes .............................2 87
General notes ................................ 287
Important safety notes .................. 288
Restarting ...................................... 289
Warning lamp ................................. 228
Warning message .......................... 289
Tire-change tool kit ........................... 266
TIREFIT kit .......................................... 267
Important safety notes .................. 267
Tire pressure not reached .............. 269
Tire pressure reached .................... 269
Tires
Aspect ratio (definition) ................. 298
Average weight of the vehicle
occupants (definition) .................... 297
Bar (definition) ............................... 297
Changing a wheel .......................... 299
Characteristics .............................. 297
Checking ........................................ 281
Curb weight (definition) ................. 298
Definition of terms ......................... 297
Direction of rotation ...................... 300
Display message ............................ 214
Di

stribution of the vehicle occu-
pants (definition) ............................ 299 DOT (Department of Transporta-
tion) (definition) ............................. 297
DOT, Tire Identification Number
(TIN) ............................................... 297
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 298
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 298
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 298
Important safety notes .................. 281
Increased vehicle weight due to
optional equipment (definition) ...... 298
Information on driving .................... 281
Kilopascal (kPa) (definition) ........... 298
Labeling (overview) ........................ 294
Load bearing index (definition) ...... 299
Load index ..................................... 296
Load index (definition) ................... 298
Maximum load on a tire (defini-
tion) ............................................... 298
Maximum loaded vehicle weight
(definition) ..................................... 298
Maximum permissible tire pres-
sure (definition) ............................. 298
Maximum tire load ......................... 296
Maximum tire load (definition) ....... 298
MOExtended tires .......................... 283
Optional equipment weight (defi-
nition) ............................................ 299
PSI (pounds per square inch) (def-
inition) ........................................... 298
Replacing ....................................... 299
Service life ..................................... 282
Sidewall (definition) ....................... 299
Speed rating (definition) ................ 298
Storing ........................................... 300
Structure and characteristics
(definition) ..................................... 297
Temperature .................................. 294
TIN (Tire Identification Number)
(definition) ..................................... 299
Tire bead (definition) ...................... 299
Tire pressure (definition) ................ 299
Tire pressures (re
commended) ...... 298
Tire size (data) ............................... 303
Tire size designation, load-bearing
capacity, speed rating .................... 294
18Index

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not
start. The starter motor
can be heard.RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the Smartkey back to position 0in the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps in
the instrument cluster go out.
XTry to start the engine again (Ypage 123). 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:
XConsult 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.
XJump-start the vehicle (Ypage 274).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
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 256). Observe the warning notes
as you do so and add coolant if necessary.
Driving127
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 33).
Displays and operation
Speedometer with segments
The segments in th espeedometer indicat e
whic hspee drange is available.
RCruis econtrol activated (Ypage 145):
The segments ligh tup from th estore dspee d
to th etype-tested maximum speed.
RDISTRONI CPLU Sactivated (Ypage 147): On
eor two segments in th eset spee drange
ligh tup.
RDISTRONI CPLU Sdetects avehicl ein front:
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 186).
The multifunction display shows changes in th e
outside temperature wit h adelay.
Coolant temperature display
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.
The coolan ttemperature gauge is in th einstru-
men tcluste ron th eleft-han dside (
Ypage 33).
184Displays and operation
On-board computer and displays

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
;Switches on voice-operated navigation or
the Voice Control System
=Right control panel
?Left control panel
ABack button
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 the COMAND multimedia sys-
tem: you can find further information on the
Voice Control System in the separate operat-
ing instructions.
Vehicles with the Audio 20 multimedia sys-
tem: you can find further information on
voice-operated navigation in the manufactur-
er'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 phone book and
starts dialing the selected number
Right control panel
~RRejects or ends a call
RExits the telephone book/redial
memory
6RMakes or accepts a call
RSwitches to the redial memory
W
XRAdjusts the volume
8RMute
Displays and operation185
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 256).
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 faulty.
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 138).
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 display.
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 messages207
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 gage is defective.
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 138).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster225
On-board computer and displays
Z

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 malfunctioning.
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 138).
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 256).
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 138).
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 256).
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.
226Warning and indicator lamps in the instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
XAt coolant temperatures below 248 ‡ (120 †), drive to the nearest qualified
specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain,
and stop-and-go traffic.
Driving systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your line of travel at too high a speed.
XBe prepared to brake immediately.
XPay careful attention to the traffic situation. You may have to brake or take
evasive action.
Observe the additional information on PRE‑SAFE
®Brake (Ypage 69).
Observe the additional information on the distance warning function of COLLISION PREVENTION ASSIST PLUS (
Ypage 65).
Warning and indicator lamps in the instrument cluster227
On-board computer and displays
Z

XPark the vehicle on a level surface.
Only check the coolant level when the vehicleis on a level surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 122).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Ypage 122).
XCheck the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position 0in the ignition
lock (Ypage 122).
XSlowly turn cap :half a turn counter-clock-
wise to allow excess pressure to escape.
XTurn cap :further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the filler neck
when warm, there is enough coolant in expan-
sion tank ;.
XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap :and turn it clockwise as far as
it will go.
For further information on coolant, see
(
Ypage 312).
Adding washer fluid to the windshield
washer system
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
XTo open: pull cap:upwards by the tab.
XAdd the premixed washer fluid.
XTo close: press cap :onto the filler neck
until it engages.
If the washer fluid level drops below the recom-
mended minimum of 1 liter, a message appears
in the multifunction display prompting you to
add washer fluid (
Ypage 218).
Further information on windshield washer fluid/
antifreeze (
Ypage 312).
Maintenance
ASSYST PLUS
Service messages
The ASSYST PLUS service interval display
informs you of the next service due date.
Information on the type of service and service
intervals (see the separate Maintenance Book-
let).
Maintenance257
Maintenance and care
Z