2015 MERCEDES-BENZ E-CLASS COUPE coolant level

Switching on/of
f........................... 117
Switching residual heat on/off ...... 124
Switching the rear window heat-
ing on/of f...................................... 122
Switching the ZONE function on/
off .................................................. 121
THERMATIC automatic climate
control (2-zone) ............................. 116
THERMOTRONIC (3-zone) auto-
matic climate control ..................... 116
Cockpit
Overview .......................................... 28
see Instrument cluster
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 214
Display message ............................ 225
Operation/note s.............................. 64
COMAND display
Cleaning ......................................... 294
COMAND Online
Switching on/of f........................... 256
Combination switch .......................... 108
Connecting a USB device
See also Digital Owner's Manua l... 256
Consumption statistics (on-board
computer) .......................................... 209
Controller ........................................... 257
Convenience closing feature .............. 86
Convenience opening feature ............ 86
Convenience opening/closing (air-
recirculation mode) ........................... 123
Coolant (engine)
Checking the level ......................... 286
Display message ............................ 231
Important safety notes .................. 334
Temperature gaug e........................ 206
Warning lamp ................................. 252
Cooling
see Climate control
Copyright ............................................. 27
Cornering light function
Display message ............................ 229
Function/note s............................. 109
Cruise control
Activation conditions ..................... 157
Cruise control lever ....................... 156 Deactivating ................................... 158
Display message ............................ 238
Driving system ............................... 156
Important safety notes .................. 156
LIM indicator lamp ......................... 156
Selecting ........................................ 156
Setting a speed .............................. 158
Storing and maintaining current
speed ............................................. 157
Cup holder
Centre console .............................. 271
Important safety notes .................. 270
Rear compartment ......................... 272 D
Dashboard see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 211
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) ........................................... 262
Daytime driving lights
Display message ............................ 229
Function/note s............................. 106
Switching on/off (on-board com-
puter) ............................................. 217
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 25
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 218
Interior lighting .............................. 218
Diagnostics connection ...................... 25
Diesel .................................................. 331
Digital Owner's Manual
Help ................................................. 22
Introduction ..................................... 22
Digital speedometer ......................... 209
Dipped-beam headlamps
Display message ............................ 229
Setting for driving abroad (sym-
metrical) ........................................ 106 Index
7

Tank content/reserve fuel .............3
30
Fuel filler flap
Opening ......................................... 148
Fuel filter (white display message) .. 233
Fuel level
Calling up the range (on-board
computer) ...................................... 209
Gauge .............................................. 30
Fuel reserve
see Fuel
Fuel tank
Capacity ........................................ 330
Problem (malfunction) ................... 150
Fuse allocation chart (vehicle tool
kit) ...................................................... 297
Fuses
Allocation chart ............................ .311
Before changing ............................ .311
Dashboard fuse box ....................... 311
Fuse box in the boot ..................... .312
Fuse box in the engine compart-
ment .............................................. 311
Important safety notes .................. 310 G
Garage door opener Clearing the memory ..................... 278
Frequencies ................................... 279
General notes ................................ 276
Important safety notes .................. 277
Opening/closing the garage door .. 278
Problems when programming ....... .278
Programming (button in the rear-
view mirror) ................................... 277
Synchronising the rolling code ....... 278
Genuine Mercedes-Benz parts ........... 23
Glove compartment .......................... 266
Google™ Local Search
See also Digital Owner's Manual ... 256 H
Hazard warning lamps ......................108
Head restraints
Adjusting ......................................... 95
Adjusting (electrically) ..................... 96
Adjusting (manually) ........................ 95 see NECK-PRO head restraints
Headbag
Display message ............................ 229
Headlamp flasher .............................. 108
Headlamps
Misting up ...................................... 110
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 291
Hill start assist .................................. 135
HOLD function
Activating ....................................... 171
Deactivating ................................... 171
Display message ............................ 234
Function/notes ............................ .170
Home address
See also Digital Owner's Manual ... 256
Horn ...................................................... 28 I
Ignition lock see Key positions
Immobiliser .......................................... 71
Indicator and warning lamp
Restraint system ............................ 251
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 254
Coolant .......................................... 252
Engine diagnostics ......................... 252
Indicator lamps
Display message ............................ 229
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 285
Instrument cluster
Overview .......................................... 30
Settings ......................................... 216
Warning and indicator lamps ........... 30
Instrument cluster lighting .............. 216
Intelligent Light System
Activating/deactivating ................. 217
Display message ............................ 229
Overview ........................................ 108 Index
11

Problem
Possible causes/consequences and
M
MSolutions The coolant temperature
display is showing more
than 120 †. The coolant warning lamp may also
be on and a warning tone
may sound. The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 286). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled sufficiently.
X If the coolant temperature is below 120 †, you can continue driving
to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. Manual transmission
Gear lever
! Only engage gear when the clutch pedal is
depressed.
! When shifting between
5thand 6thgear,
you should always push the gear lever all the way to the right. Otherwise, you could shift
unintentionally into 3rdor4th gear and dam-
age the transmission.
If you shift down at too high a speed (trans-
mission braking), this can cause the engine to
overrev, leading to engine damage.
Do not use the clutch bite point to keep the
vehicle stationary on uphill gradients. There is otherwise a risk of damaging the clutch.
! On long and steep downhill gradients, espe-
cially if the vehicle is laden or towing a trailer, you must shift into gear 1, 2or3in good time.
This uses the engine's braking effect. This
relieves the load on the brake system and
prevents the brakes from overheating and
wearing too quickly. k
Reverse gear
1 -6
Forward gears Engaging reverse gear
! Only shift into reverse gear
Rwhen the vehi-
cle is stationary. Otherwise, you could dam-
age the transmission.
X Move the gear lever firmly to the left, beyond
the point of resistance, then forwards.
The ECO start/stop function is not available
when reverse gear is engaged. For further infor-
mation on the ECO start/stop function; see
(Y page 135). Manual transmission
139Driving and parking Z

Under normal operating conditions and with the
specified coolant level, the coolant temperature
may rise to 120 †.
At high outside temperatures and when driving
uphill, the coolant temperature may rise to the
end of the scale. Operating the on-board computer
Overview :
Multifunction display
; Switches on voice-operated control for nav-
igation or LINGUATRONIC
= Right control panel
? Left control panel
A Back button
X To activate the on-board computer: turn
the key 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.
You can find further information on LINGUA-
TRONIC in the separate operating instruc-
tions in vehicles with a COMAND Online mul-
timedia system.
You can find further information on voice-
operated control for navigation in the manu-
facturer's operating instructions in vehicles
with an Audio 20 multimedia system. Left control panel =
; R
Calls up the menu and menu bar 9
: Press briefly:
R Scrolls through lists
R Selects a submenu or function
R In the Audio Audio menu: selects the
previous or next station, when the preset list or station list is active,
or an audio track or video scene
R In the Tel Tel(telephone) menu:
switches to the phone book and
selects a name or telephone num-
ber 9
: Press and hold:
R
In the Audio Audio menu: selects a pre-
set list or a station list in the
desired frequency range, or an
audio track or video scene using
rapid scrolling
R In the Tel Tel(Telephone) menu:
starts rapid scrolling if the phone
book is open a R
Confirms the selection or display
message
R In the Tel Tel(Telephone) menu:
switches to the telephone book
and starts dialling the selected
number Right control panel
~ R
Rejects or ends a call
R Exits the telephone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory W
X R
Adjusts the volume 8 R
Mute Displays and operation
207On-board computer and displays Z

Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolant See Top up coolant See
Owner's Manual Owner'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 Top up the coolant, observing the warning notes before doing so
(Y page 286).
X If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist workshop. ? The fan motor is faulty.
X If the coolant temperature is below 120 †, you can continue driving
to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g. driving
in mountainous terrain and stop-start traffic. ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Never drive with an overheated engine. Driving when your engine is
overheated can cause some fluids which may have leaked into the
engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is a risk of injury.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 150).
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 frozen slush.
X Do not start the engine again until the display message goes out and
the coolant temperature is below 120 †. The engine may otherwisebe damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, consult a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. Display messages
231On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions #
See Owner's Manual See Owner's Manual The battery is not being charged.
A warning tone also sounds.
Possible causes:
R faulty alternator
R torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 150).
X Consult a qualified specialist workshop. #
Stop vehicle See Stop vehicle See
Owner's Manual Owner's Manual The battery is no longer being charged and the battery charge level is
too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 150).
X Observe the instructions in the #See SeeOwner's
Owner's Manual
Manualdisplay
message.
X Consult a qualified specialist workshop. 4
Check Check
eng.
eng.oil
oillev.
lev.
when
when next
nextrefuelling
refuelling The engine oil level has dropped to the minimum level.
A warning tone also sounds.
! Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
X Check the oil level when next refuelling, at the latest (Y page 285).
X If necessary, top up the engine oil (Y page 286).
X Have the engine checked at a qualified specialist workshop if the
engine oil needs topping up more often than usual.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes-
benz.com. 8
Reserve fuel level Reserve fuel level The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level drops
into the reserve range.
X Refuel at the nearest filling station. C There is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.
X Refuel at the nearest filling station without fail. 232
Display
messagesOn-board computer and displays

Engine
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ;
N
The yellow engine diagnostics warning lamp lights up while the engine is run-
ning.
There may be a fault, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
R in the fuel system
The emission limit values may be exceeded and the engine may be running in
emergency mode.
X Consult a qualified specialist workshop immediately.
Vehicles with a diesel engine: the fuel tank has been run dry (Y page 150).
X After refuelling start the engine three to four times.
If the yellow engine diagnostics warning lamp goes out, emergency running
mode is cancelled. You do not need to have the vehicle checked. 8
N
The yellow reserve fuel warning lamp is on while the engine is running.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level drops into the
reserve range.
X Refuel at the nearest filling station. ?
N
The red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is faulty.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine. Do not continue driving under any circumstances.
X Safeguard the vehicle against rolling away (Y page 150).
X Consult a qualified specialist workshop. 252
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ?
N
The 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.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 150).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 286).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. ?
N
The red coolant warning lamp comes on while the engine is running. A warning
tone also sounds.
The coolant temperature has exceeded 120 †. The airflow 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.
Never drive with an overheated engine. Driving when your engine is overheated
can cause some fluids which may have leaked into the engine compartment to
catch fire.
In addition, steam from an overheated engine can cause serious burns, which can
occur just by opening the bonnet.
There is a risk of injury.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 150).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 286).
X If you have to top up the coolant frequently, have the engine cooling system
checked. Warning and indicator lamps in the instrument cluster
253On-board computer and displays Z