2014 MERCEDES-BENZ CL-Class maintenance

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 29).Important safety notes
You will find an illustration of the instrument
cluster in the "At a glance" section
(Y page 35). G
WARNING
The driver's concentration must always be
directed primarily at road traffic.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 feet (approximately 14 m) per
second. G
WARNING
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicato rlamps R
malfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution .Contactana uthorized Mercedes-
Ben zCenter as soon as possible. G
WARNING
Malfunction and warning messages are only
indicated for certain systems and are
intentionally not very detailed. The
malfunction and warning messages are
simply a reminder with respect to the
operation of certain systems. They do not
replace the owner's and/or driver's
responsibility to maintain the vehicle's
operating safety. Have all required
maintenance and safety checks performed on
the vehicle. Bring the vehicle to an authorized
Mercedes-Benz Center to address the
malfunction and warning messages. Displays and operation
Coolant temperature display
G
WARNING
Driving when your engine is overheated can
cause some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). 336
Displays and operationOn-board computer and displays

X
Press the =or; button on the
steering wheel to select the DriveAssistmenu.
X Press 9or: to select Blind Spot
Assist .
X Press the abutton.
The curren tselection is displayed.
X To activate/deactivate: press thea
button again.
Activating/deactivating Active Lane
Keeping Assist You can use the
Lane Keeping Assist function to activat
eor deactivate Active Lane
Keeping Assist (Y page 330).
X Press the =or; button on the
steering wheel to select the DriveAssistmenu.
X Press 9or: to select Lane Keeping Assist .
X Press the abutton.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When Active Lane Keeping Assist is activated,
the à symbol appears in the multifunction
display when the ignitio nis on. Maintenance menu
In the Service menu, you have the following
options:
R calling up display messages (Y page 352)
R checking the tire pressure electronically
(Y page 461)
R calling up a service due date
(Y page 426)
R checking the oil level (Y page 421) Settings menu
Introduction The
Settings menu can be used for:
R Switching the daytime running lamps on/
off
R switching Adaptive Highbeam Assist on/
off
R showing or hiding the additional
speedometer
R selecting the units for speed and distance
R activating/deactivating the radar sensor
system
Switching the daytime running lamps
on/off This function is not available in Canada.
If you have activated the
Daytime running
lights function and the light switch is in the
$ orc position, the daytime running
lamps are automatically switched on when
the engine is running.
Depending on the ambient light, the following
will additionally light up:
R parking lamps
R tail lamps
R license plate lamp
R side marker lamps
If you turn the light switch to a different
position, the corresponding lights are
switched on. If you switch off the daytime
running lamps at night, make sure that the
light switch is set to Lorc.
The factory setting is On .
X Press the =or; button on the
steering wheel to select the Settings menu.
X Press the 9or: button to select
daytime running lamps .
X Press the abutton to confirm.
X To activate/deactivate: pressa
again. Menus and submenus
349On-board computer and displays Z

maintenance information to the Mercedes-
Benz Customer Assistance Center. The
Mercedes-Benz Customer Assistance Center
then informs youra
uthorized Mercedes-Benz
Service Cente rofthe work required. This
happens automatically and does not require
any action from the driver. This function
allows the Mercedes-Ben zCenter to improve
appointment planning significantly and
ensures that your vehicle receives the best
service possible.
i The "Automatic retrieval of vehicle data
for the service due date" function is only
available if the relevant mobile phone
network is available and adata connection
is possible.
Stolen vehicle recovery service If your vehicle has been stolen:
X Notify the police.
The police will issue a numbere dincident
report.
X This numbe rwill be forwarded to the
Mercedes-Ben zCustome rAssistance
Center together with your PIN.
The Mercedes-Benz Customer Assistance
Center then attempts to locate the mbrace
system. The Mercedes-Benz Customer
Assistance Center contacts you and the
local law enforcementa gency if the vehicle
is located. However, only the law
enforcement agency is informed of the
location of the vehicle.
i If the anti-theft alarm system is active for
longer than 30 seconds, mbrace
automatically informs the Mercedes-Benz
Customer Assistance Center. Garage door opener
Important safety notes G
WARNING
When you operate or program the garage door
with the integrated garage door opener, persons in the range of movement of the
garage door can become trapped or struck by
the garage door. There is
arisk of injury.
When using the integrated garage door
opener, always make sure that nobody is
within the range of movement of the garage
door. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbo nmonoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
The HomeLink ®
garage door opener
integrated in the rear-view mirror allows you
to operate up to three different door and gate
systems.
Use the integrated garage door opener only
on garage doors that:
R have safety stop and reverse features and
R meet current U.S. federal safety standards
When programming a garage door opener,
park the vehicle outside the garage.
i Certain garage door drives are
incompatible with the integrated garage
door opener. If you have difficulty
programming the integrated garage door
opener, contact an authorized Mercedes-
Benz Center.
Alternatively, you can call the following
telephone assistance services:
R USA: Mercedes-Benz Customer
Assistance Center at
1-800-FOR-MERCedes
R Canada: Customer Service at
1-800-387-0100
R HomeLink ®
hotline 1-800-355-3515
(free of charge)
More information on HomeLink ®
and/or
compatible products is also available
online at http://www.homelink.com. 414
FeaturesStowage and features

Useful information
............................420
Engine compartment ........................420
Maintenance ...................................... 426
Care .................................................... 427 419Maintenance and care

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 29).Engine compartment
Hood
Opening the hood G
WARNING
Do not pull the release lever while the vehicle
is in motion. Otherwise, the hood could be
forced open by passing air flow.
This could cause the hood to come loose and
injure you and/o rothers. G
WARNING
Do not open the hood when the engine is
overheated. You could be seriously injured.
Observe the coolant temperature gauge to
determine whether the engine may be
overheated. If you see flames or smoke
coming from the engine compartment, move
away fro mthe vehicle. Wait until the engine
has cooled. If necessary, call the fire
department. G
WARNING
There is a risk of injury if the hood is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the risk of burns, only touch those
components described in the Operator's
Manual and observe the relevant safety notes. G
WARNING
To avoid injury, stay clear of moving parts
when the hood is open and the engine is
running.
The radiator fan may continue to run for
approximately 30seconds or may even restart
after the engine has been switched off. For
this reason, you must not reach into the fan
rotation area. G
WARNING
The engine is equipped with a transistorized
ignition system. Because of the high voltage,
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system:
R with the engine running
R while starting the engine
R when the ignition is switched on and the
engine is turned manually
X Make sure that the windshield wipers are
switched off. G
WARNING
The windshield wipers and wiper linkage
could be set in motion.
When the hood is open, you or others could
be injured by the wiper linkage.
Make sure that the windshield wipers are
switched off. Remove the SmartKey or make
sure that no ignition position has been
selected with KEYLESS-GO. All indicator
lamps must be off in the instrument panel. 420
Engine compartmentMaintenance and care

X
Pull release lever :for the hood.
The hood is released.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield
wipers or the hood. X
Reach into the gap, pull hood catch
handle ;up and lift the hood.
Once you have lifted the hood about
15 inches (40cm), it is automatically
opened the rest of the way and held open
by the gas-filled struts.
Closing the hood G
WARNING
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
X Lower the hood and let it fall from a height
of approximately 8inche s(20cm).
X Check that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close
it with a little more force. Engine oil
Notes on the oil level Depending on the driving style, the vehicle
consumes up to 0.9 US qts
(0.8 l) of oil over
a distance of 600 miles (1,000 km). The oil
consumption may be highe rthan this when
the vehicle is new or if you frequently drive at
high engine speeds.
On vehicles with a 12-cylinder engine, the oil
level can be checked using the on-board
computer. On all other models, the oil
dipstick must be used to check the engine oil
level.
Depending on the engine, the oil dipstick may
be in a different location.
When checking the oil level:
R park the vehicle on a level surface.
R the engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
R if the engine is not at normal operating
temperature, e.g. if the engine was only
started briefly: wait about 30 minutes
before carrying out the measurement.
Checking the oil level using the oil
dipstick X
Pull oil dipstick :out of the dipstick guide
tube.
X Wipe off oil dipstick :. Engine compartment
421Maintenance and care Z

X
Slowly slide oil dipstick :into the guide
tube to the stop, and take it ou tagain.
If the level is between MIN mark =and
MAX mark ;, the oil level is correct.
X If the oil level has dropped to MIN mark
= or below, add 1.1 US qt (1.0 liter) of
engine oil.
Checking the oil level using the on-
board computer Measurement
X
Make sure that the SmartKey is in position
2in the ignition lock.
X Press the ;or= button to select the
Service menu.
X Press the :or9 button to select
Engine Oil Level .
X Press the abutton.
The multifunction display shows the
following message: Measuring EngineOil Level Accurate Only When
Vehicle Is Level
i
If you wish to cancel the measurement,
press the %button on the multifunction
steering wheel. 422
Engine compartmentMaintenance and care

Display messages
The measuremen
ttakes a few seconds. You will see one of the following messages in the
multifunction display: Problem Possible causes/consequences and
M Solutions
Engine Oil Level OK The oil level is correct.
Add 1.0 l Engine
Oil At Next
Refueling . The oil level is too low.
X
add 1. 0lof engine oil. Add 1.5 l Engine
Oil At Next
Refueling . The oil level is too low.
X
add 1.5 l of engine oil. Add 2.0 l Engine
Oil At Next
Refueling . The oil level is too low.
X
add 2.0 l of engine oil. Engine Oil Level
Reduce Oil Level The engine oil level is too high.
X
Have excess engine oil siphoned off. For Engine Oil
Level Ignition
Must be On The ignition is switched off.
X
Turn the SmartKey to position 2in the ignition lock. Need More Time to
Check Engine Oil
Level The required waiting period was not observed.
X
If the engine is at normal operating temperature: repeat the
measurement after about five minutes.
If the engine is not at normal operating temperature (e.g. if the
engine was only started briefly): repeat the measurement after
about 30 minutes. Engine Oil Level
Not When Engine On The engine is running; oil level measurement is not possible.
X
Switch off the engine.
X If the engine is at normal operating temperature: wait about five
minutes before carrying out the measurement.
If the engine is not at normal operating temperature, e.g. if the
engine was only started briefly: wait approximately
30 minutes before carrying out the measurement. Adding engine oil
G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a Engine compartment
423Maintenance and care Z