coolant level MERCEDES-BENZ CLA COUPE 2016 Owners Manual

Switching on/of
f........................... 120
Switching residual heat on/off ...... 126
Switching the rear window heat-
ing on/of f...................................... 124
Switching the ZONE function
on/of f............................................ 123
THERMOTRONIC (2-zone) auto-
matic climate control ..................... 119
Cockpit
Overview .......................................... 30
COMAND display
Cleaning ......................................... 290
COMAND Online
Switching on/of f........................... 259
Combination switch .......................... 109
Connecting a USB device
See also Digital Owner's Manua l... 259
Consumption statistics (on-board
computer) .......................................... 203
Controller ........................................... 260
Convenience closing feature .............. 90
Convenience opening feature ............ 90
Convenience opening/closing (air-
recirculation mode) ........................... 125
Coolant (engine)
Checking the level ......................... 283
Display message ............................ 231
Important safety notes .................. 332
Temperature (on-board computer, Mercedes-AMG vehicles) ............... 213
Temperature gaug e........................ 201
Warning lamp ................................. 255
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Display message ............................ 228
Cruise control
Activation conditions ..................... 163
Cruise control lever ....................... 163
Deactivating ................................... 164
Display message ............................ 237
Driving system ............................... 162
Important safety notes .................. 163
LIM indicator lamp ......................... 163
Selecting ........................................ 163
Setting a speed .............................. 164 Storing and maintaining current
speed ............................................. 163
Cup holder
Centre console .............................. 274
Important safety notes .................. 273
Rear compartment ......................... 274 D
Dashboard see Instrument cluster
Data
see Technical data
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) ........................................... 265
Daytime driving lights
Display message ............................ 230
Function/note s............................. 107
Switching on/off (on-board com-
puter) ............................................. 211
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 26
Diagnostics connection ...................... 27
Diesel .................................................. 330
Digital Owner's Manual
Help ................................................. 23
Introduction ..................................... 23
Digital speedometer ......................... 204
Dipped-beam headlamps
Display message ............................ 228
Replacing bulb s............................. 112
Setting for driving abroad (sym-
metrical) ........................................ 107
Switching on/of f........................... 108
DIRECT SELECT lever
Automatic transmission ................. 144
Display message
Driving systems ............................. 234
Display messages
ASSYST PLUS ................................ 284
Calling up (on-board computer) ..... 216
Engine ............................................ 231
General information ....................... 216
Hiding (on-board computer) ........... 216
Key ................................................ 246
Lights ............................................. 228 8
Index

Problem (malfunction) ...................1
55
Quality (diesel )............................... 330
Refuelling ....................................... 152
Tank content/reserve fue l............. 328
Fuel filler flap
Opening ......................................... 154
Fuel filter (white display message) .. 234
Fuel level
Calling up the range (on-board
computer) ...................................... 204
Gaug e.............................................. 32
Fuel reserve
see Fuel
Fuel tank
Capacity ........................................ 328
Problem (malfunction) ................... 155
Fuses
Allocation chart ............................. 309
Before changing ............................. 308
Fuse box in the engine compart-
ment .............................................. 308
Fuse box in the front-passenger
footwell .......................................... 309
Important safety notes .................. 308 G
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 213
Gearshift program
SETUP (on-board computer) .......... 214
Genuine Mercedes-Benz parts ........... 24
Glove compartment .......................... 269
Google™ Local Search
See also Digital Owner's Manua l... 259 H
HANDS-FREE ACCESS .......................... 87
Hazard warning lamps
Display message ............................ 246
Switching on/of f........................... 109
Head restraints
Adjusting ......................................... 99
Adjusting (manually) ...................... 100
Adjusting (rear) .............................. 100
Fitting/removing (rear) .................. 100
Headlamp flasher .............................. 109 Headlamps
Misting up ...................................... 110
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 287
Hill start assist .................................. 136
HOLD function
Activating ....................................... 173
Deactivating ................................... 173
Display message ............................ 234
Function/note s............................. 172
Home address
See also Digital Owner's Manua l... 259
Horn ...................................................... 30 I
Ignition lock see Key positions
Immobiliser .......................................... 73
Indicator and warning lamp
Restraint system ............................ 254
Indicator and warning lamps
Coolant .......................................... 255
Engine diagnostics ......................... 255
SPORT handling mode ................... 253
Indicator lamps
Display message ............................ 228
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 32
Setting s......................................... 210
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 200
Interior lighting
Control ........................................... 111
Overview ........................................ 110
Reading lamp ................................. 110
Interior motion sensor
Deactivating ..................................... 75
Function ........................................... 75
Priming ............................................ 75
Switching off .................................... 75
iPod ®
See also Digital Owner's Manua l... 259 12
Index

Problem
Possible causes/consequences and
M
MSolutions The engine does not
start. The starter motor
is turning audibly. The
reserve fuel warning
lamp is lit and the fuel
gauge display shows 0. The fuel tank is empty.
X Refuel the vehicle. The engine does not
start. The starter motor
is not turning audibly. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 301).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to excessively high thermal load.
X Allow the starter motor to cool down for approximately two minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Vehicles with a petrol
engine:
The engine is not running
smoothly and is misfir-
ing. The engine electronics or a mechanical component of the engine
management system are/is malfunctioning.
X Depress the accelerator pedal only slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
X Have the cause rectified immediately at a qualified specialist work-
shop. 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 not
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 283). 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 not 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. 140
DrivingDriving and parking

There is a short delay before a change in outside
temperature appears in the multifunction dis-
play. Coolant temperature gauge
G
WARNING
If you open the bonnet while the engine is
overheating or while there is a fire in the
engine compartment, you could come into
contact with hot gases or other leaking ser-
vice products. There is a danger of injury.
Allow an overheating engine to cool down
before opening the bonnet. If there is a fire in the engine compartment, leave the bonnet
closed and notify the fire brigade.
The coolant temperature gauge is in the instru-
ment cluster on the right-hand side (Y page 32).
Under normal operating conditions and with the correct coolant level, the coolant temperature
may rise to 120 †.
At high outside temperatures and when driving
in mountainous terrain, the coolant temperature may rise to the end of the scale. Operating the on-board computer
Overview :
Multifunction display
; Right control panel
= Left control panel
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.
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 Displays and operation
201On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Adaptive Main-beam
Adaptive Main-beam
Assist currently Assist currently
unavailable unavailable
See
SeeOwn‐
Own‐
er's Manual
er's Manual Adaptive Highbeam Assist is deactivated and temporarily inoperative.
Possible causes:
R The windscreen is dirty in the camera's field of vision.
R Visibility is impaired due to heavy rain, snow or fog.
X Clean the windscreen.
If the system detects that the camera is fully operational again, the Adaptive Main-beam Assist available again
Adaptive Main-beam Assist available again message is dis-
played.
Adaptive Highbeam Assist is operational again. Adaptive Main-beam Adaptive Main-beam
Assist inoperative Assist inoperative Adaptive Highbeam Assist is faulty.
X
Consult a qualified specialist workshop. 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 283).
If you have to top up the coolant frequently: X Contact a qualified specialist workshop and have the engine cooling
system checked. ? The fan motor is faulty.
X If the coolant temperature is below 120 †, drive on 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. Display
messages
231On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions ?
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 has
overheated can cause any fluids that 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 Secure the vehicle against rolling away (Y page 155).
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 otherwise be damaged.
X Pay attention to the coolant temperature gauge.
If the temperature increases again:
X Consult a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. #
See Owner's Manual See Owner's Manual The battery is no longer 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 Secure the vehicle against rolling away (Y page 155).
X Consult a qualified specialist workshop. 232
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions #
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 155).
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 282).
X If necessary, top up the engine oil (Y page 283).
If you have to top up the engine oil frequently:
X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes-
benz.co m. 4
Add 1 litre engine Add 1 litre engine
oil when next refu‐ oil when next refu‐
elling elling The engine oil level has dropped to the minimum level.
! 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 282).
X If necessary, top up the engine oil (Y page 283).
If you have to top up the engine oil frequently:
X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes-
benz.com. 4
Engine oil level Engine oil level
Stop Stop
vehicle
vehicle Switch
Switch
engine off
engine off The engine oil level is too low. There is a risk of engine damage.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 155).
X Check the engine oil level (Y page 282).
X If necessary, top up the engine oil (Y page 283). Display messages
233On-board computer and displays Z

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 with the following, for example:
R Engine management
R Fuel injection system
R Exhaust system
R Ignition system (for vehicles with petrol engines)
R 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 155).
X Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emergency mode is
cancelled. The vehicle does not have to be checked. æ
N
The yellow reserve fuel warning lamp lights up 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 malfunctioning.
The coolant temperature is no longer being monitored. The engine could be dam-
aged 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.
X Secure the vehicle against rolling away (Y page 155).
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
255On-board computer and displays Z

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions ?
N
The red coolant warning lamp lights up 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 not 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 Secure the vehicle against rolling away (Y page 155).
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, making sure to observe the
warning notes (Y page 283).
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 heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. ?
N
The red coolant warning lamp lights up 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 has overheated
can cause any fluids that 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 Secure the vehicle against rolling away (Y page 155).
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, making sure to observe the
warning notes (Y page 283).
X If you have to top up the coolant frequently, have the engine cooling system
checked. 256
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Topping up engine oil
G
WARNING
Certain components in the engine compart-
ment could be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is a risk of injury when accessing the
engine compartment.
As far as possible, allow the engine to cool
down and only touch the components descri- bed in the following. G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil does not spill out
over the filler neck. Allow the engine to cool
down and thoroughly clean the components
that have come into contact with engine oil
before you start the engine. H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment.
! Use only engine oils and oil filters that are
approved for vehicles with a service system. A
list of the engine oils and oil filters that have
been tested and approved in accordance with Mercedes-Benz Specifications for Service
Products is available at any Mercedes-Benz
Service Centre.
The following cause engine failure or damage
to the exhaust system:
R Use of engine oils and oil filters that have
not been expressly approved for the service system
R Replacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
R Use of engine oil additives
! Do not add too much oil. Topping up with too
much engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. Example: engine oil filler cap
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, top up with 1.0 lof engine oil.
X Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks securely into
place.
X Check the oil level again with the oil dipstick
(Y page 282).
Further information on engine oil (Y page 330). Checking and adding other service
products
Checking the coolant level G
WARNING
The cooling system is pressurised, particu-
larly when the engine 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. Open
the cap slowly to release the pressure.
! The coolant level must only be checked and
corrected when the engine has cooled down
(coolant temperature under 40 †). Checking
the coolant level when the coolant tempera-
ture is over 40 † can lead to damage to the
engine or engine cooling system. Engine compartment
283Maintenance and care Z