engine coolant MERCEDES-BENZ E-Class COUPE 2017 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

Important safety guidelines .............42
Introduction .....................................4 1
Releasin g ......................................... 44
Switching belt adjustment on/off
(on-board computer) ...................... 196
Warning lamp ................................. 220
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 92
Adjusting the 4-way lumbar sup-
port .................................................. 94
Adjusting the head restraint ............ 93
Adjusting the multicontour seat ....... 94
Cleaning the cover ......................... 264
Correct driver's seat position ........... 91
Folding the backrests forward/
back ................................................. 93
Important safety notes .................... 91
Overview .......................................... 91
Seat backrest display message ..... 217
Seat heating .................................... 95
Seat heating problem ...................... 96
Storing settings (memory func-
tion) ............................................... 102
Switching seat heating on/off ......... 95
Switching seat ventilation on/
off .................................................... 95
Section
Trunk ............................................... 80
Securing cargo .................................. 238
Selector lever
Cleaning ......................................... 263
Sensors (cleaning instructions) ....... 262
Service menu (on-board com-
puter) .................................................. 193
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 311
Coolant (engine) ............................ 312
Engine oil ....................................... 311
Fuel ................................................ 309
Important safety notes .................. 308
Refrigerant (air-conditioning sys-
tem) ............................................... 313
Washer fluid ................................... 312
Setting the air distribution ............... 116Setting the airflow
............................ 117
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 229
Setting the language
see also Digital Operator's Man-
ual .................................................. 229
Setting the time
see also Digital Ope rator's Ma
n-
ual .................................................. 229
Settings
Factory (on-board computer) ......... 196
On-board computer ....................... 193
Side impact air bag ............................. 47
Side marker lamp (display mes-
sage) ................................................... 206
Side windows
Cleaning ......................................... 261
Convenience closing feature ............ 84
Convenience opening feature .......... 83
Important safety information ........... 82
Opening/closing .............................. 83
Problem (malfunction) ..................... 86
Resetting ......................................... 85
Reversing feature ............................. 82
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 229
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 76
Changing the programming ............. 74
Checking the battery ....................... 76
Convenience closing feature ............ 84
Convenience opening feature .......... 83
Display message ............................ 218
Door central locking/unlocking ....... 73
Important safety notes .................... 73
Loss ................................................. 77
Mechanical key ................................ 75
Overview .......................................... 73
Positions (ignition lock) ................. 122
Problem (malfunction) ..................... 77
Starting the engine ........................ 124
16Index

Locking (in an emergency) ............... 80
Locking (SmartKey) .......................... 73
Lowering ........................................ 303
Maintenance .................................... 26
Parking for a long period ................ 140
Pulling away ................................... 124
Raising ........................................... 301
Reporting problems ......................... 28
Securing from rolling away ............ 300
Towing away .................................. 276
Transporting .................................. 278
Unlocking (in an emergency) ........... 80
Unlocking (SmartKey) ...................... 73
Vehicle data ................................... 313
Vehicle data ....................................... 313
Vehicle dimensions ........................... 313
Vehicle emergency locking ................ 80
Vehicle identification number
see VIN
Vehicle identification plate .............. 307
Vehicle tool kit .................................. 266
Video
Operating the DVD ......................... 189
see also Digital Operator's Man-
ual .................................................. 229
VIN
Seat ............................................... 308
Type plate ...................................... 307
Voice Control System
see Separate operating instructions
W
Warning and indicator lampsABS ................................................ 222
Brakes ........................................... 221
Check Engine ................................. 225
Coolant .......................................... 225
Distance warning ........................... 227
ESP
®.............................................. 222
ESP®OFF ....................................... 223
Fuel tank ........................................ 225
General notes ................................ 219
Overview .......................................... 33
PASSENGER AIR BAG OFF ............... 41
Reserve fuel ................................... 225
Restraint system ............................ 224
Seat belt ........................................ 220 Tire pressure monitor .................... 228
Warranty .............................................. 25
Washer fluid
Display message ............................ 218
Wheel and tire combinations
Tires ............................................... 303
Wheel bolt tightening torque ........... 303
Wheel chock ...................................... 300
Wheels
Changing a wheel .......................... 299
Checking ........................................ 281
Cleaning ......................................... 261
Emergency spare wheel ................. 304
Important safety notes .................. 281
Information on driving .................... 281
Interchanging/changing ................ 299
Mounting a new wheel ................... 302
Mounting a wheel .......................... 300
Removing a wheel .......................... 302
Storing ........................................... 300
Tightening torque ........................... 303
Wheel size/tire size ....................... 303
Window curtain air bag
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 117
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 257
Important safety notes .................. 312
Windshield wipers
Problem (malfunction) ................... 110
Replacing the wiper blades ............ 109
Switching on/off ........................... 108
Winter driving
Important safety notes .................. 283
Slippery road surfaces ................... 144
Snow chains .................................. 283
Winter tires
M+S tires ....................................... 283
Wiper blades
Cleaning ......................................... 261
Important safety notes .................. 109
Replacing ....................................... 109
20Index

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

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

Adding engine oil
GWARNING
Certain component sin th eengin ecompart-
ment, suc has th eengine, radiato rand part s
of th eexhaust system, can become ver yhot .
Working in th eengin ecompartmen tposes a
ris kof injury.
Wher epossible, let th eengin ecool down and
touch only th ecomponent sdescribed in th e
following.
GWARNIN G
If engin eoil comes int ocontact wit hhot com-
ponents in th eengin ecompartment, it may
ignite. There is aris kof fir eand injury.
Mak esur ethat engin eoil is no tspilled next to
th efiller neck .Let th eengin ecool down and
thoroughly clean th eengin eoil off th ecom-
ponents before starting th eengine.
HEnvironmenta lnot e
When addin goil, tak ecar eno tto spil lany. If
oil enters th esoil or waterways, it is harmful to
th eenvironment.
!Only use engin eoils and oil filters that hav e
been approve dfor vehicles wit h aservic esys-
tem. You can obtain alist of th eengin eoils
and oil filters tested and approve din accord -
anc ewit hth eMercedes-Benz Specification s
for Service Products at any Mercedes-Benz
Service center.
Damage to th eengin eor exhaust system is
caused by th efollowing:
Rusin gengin eoils and oil filters that hav eno t
been specifically approve dfor th eservic e
system
Rreplacing engin eoil and oil filters after th e
interval for replacemen tspecifie dby th e
servic esystem has been exceeded
Rusin gengin eoil additives.
!Do no tadd to omuc hoil. addin gto omuc h
engin eoil can result in damag eto th eengin e
or to th ecatalytic converter. Hav eexcess
engin eoil siphoned off .
Example
XTurn cap :counter-clockwise and remove it .
XAddengin eoil.
If th eoil level is at or belo wtheMIN mar kon
th eoil dipstick ,add 1. 1US qt (1.0l)of engine
oil.
XReplace cap :on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick
(Ypage 255).
Further information on engine oil (
Ypage 311).
Additional service products
Checking coolant level
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
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
256Engine compartment
Maintenance and care