2012 MERCEDES-BENZ CL-Class engine coolant

Refrigerant ..................................... 479
Setting the air distribution .............259
Setting the airflow .........................259
Setting the airflow (COMAND) .......238
Setting the air vents ......................261
Setting the footwell temperature
(COMAND) ..................................... 238
Setting the temperature ................259
Switching air-recirculation mode
on/off ............................................ 260
Switching on/off ........................... 257
Switching residual heat on/off ......261
Switching the rear window
heating on/off ............................... 260
Cockpit
Overview .......................................... 32
see Instrument cluster
Color, setting (TV, video) .................. 224
COMAND At a glance (overview) .................... 108
Back button ................................... 109
Basic functions .............................. 123
Components .................................. 108
Display ........................................... 111
Example of operation .....................118
Function buttons ........................... 109
Menu overview .............................. 111
Remote control .............................. 115
Switching on/off ........................... 123
System settings ............................. 127
COMAND controller ........................... 108
COMAND display Cleaning instructions .....................114
Folding in and swiveling .................114
Setting ........................................... 127
COMAND operating system .............. 108
Combination switch .......................... 246
Compass function ............................. 172
Conference connection ..................... 185
Consumption statistics (on-board
computer) .......................................... 334
Contrast, setting (TV, video) ............ 224
Convenience closing feature .............. 87
Convenience opening feature ............ 87
Convenience telephone Importing contacts ........................188Convenience telephony .................... 177
Introduction ................................... 177
Coolant (engine)
Checking the level .........................411
Display message ............................ 362
Notes ............................................. 479
Temperature (on-board computer) . 337
Temperature gauge ........................ 330
Cooling
see Climate control
Copy protection (CD/DVD) ............... 213
Cornering light function Display message ............................ 359
Function/notes ............................. 248
Cruise control
Cruise control lever .......................291
Deactivating ................................... 292
Display message ............................ 372
Driving system ............................... 290
Function/notes ............................. 290
Important safety notes ..................290
LIM indicator lamp .........................291
Setting a speed .............................. 292
Storing and maintaining current
speed ............................................. 291
Cup holder
Center console .............................. 391
Important safety notes ..................391
Rear compartment .........................392
Customer Assistance Center (CAC) ... 29
Customer Relations Department ....... 29
D
Dashboard see Cockpit
Data
see Technical data
Data carrier
MUSIC REGISTER ........................... 214
Data medium
Audio DVD ..................................... 212
CD/DVD ........................................ 213
MP3 ............................................... 212
Date format, setting .......................... 128
Day design, setting ........................... 127
Daytime running lamp mode see Daytime running lamps
8Index

Destination reached ......................154
Lane recommendations .................152
Off-road ......................................... 157
Traffic reports ................................ 158
Route guidance (navigation) ............ 335
Route guidance (on-board
computer) .......................................... 335
Route information see Dynamic route guidance/TMC
S
Safety Children in the vehicle .....................55
Child restraint systems ....................55
Occupant Classification System
(OCS) ............................................... 46
Overview of occupant safety
systems ........................................... 40
Safety notes
Audio CD/DVD and MP3 mode .....204
Operating safety ............................ 106
Video DVD mode ........................... 224
Safety systems
see Driving safety systems
SatRadio ............................................. 200
Displaying information ...................204
Registering .................................... 201
Selecting a category ......................202
Screen
see Display
SD memory card
Loading .......................................... 205
Seat belts
Automatic comfort-fit feature ..........55
Belt force limiters ............................ 55
Cleaning ......................................... 421
Correct usage .................................. 52
Emergency Tensioning Devices ........ 55
Fastening ......................................... 53
Important safety guidelines .............51
Releasing ......................................... 54
Safety guidelines ............................. 41
Special seat belt retractor ...............57
Warning lamp ................................. 378
Warning lamp (function) ................... 54
Seats
Active multicontour seat .......... 97, 241
Adjusting (electrically) .....................94
Adjusting lumbar support ................97
Adjusting the head restraint ............95
Cleaning the cover .........................420
Correct driver's seat position ........... 92
Folding the backrests forward/
back ................................................. 96
Important safety notes ....................93
Multicontour seat ............................ 97
Seat backrest display message .....375
Seat heating problem ......................98
Seat ventilation problem ..................98
Selecting (COMAND) .....................239
Storing settings (memory
function) ........................................ 102
Switching seat heating on/off .........97
Switching seat ventilation on/off ....98
Selecting stations (radio)
Using station presets .....................196
Using station search ......................196
Sending DTMF tones ......................... 187
Sensors (cleaning instructions) ....... 418
Service see ASSYST PLUS service interval
display
Service interval display
Displaying service messages .........414
Hiding service messages ...............414
Notes ............................................. 414
Service messages ..........................413
Service menu (on-board computer) . 343
Service products Brake fluid ..................................... 479
Capacities ...................................... 476
Coolant (engine) ............................ 479
Engine oil ....................................... 478
Fuel ................................................ 477
Important safety notes ..................475
Refrigerant (air-conditioning
system) .......................................... 479
Washer fluid ................................... 480
Setting a station (radio)
Via manual frequency entry ...........196
Settings
Display ........................................... 127
Menu overview .............................. 111Index19

MB info call button ........................398
Remote vehicle locking ..................401
Roadside Assistance button ..........397
Search & Send ............................... 400
Self-test ......................................... 396
System .......................................... 395
Vehicle remote unlocking ..............401
Telephone
Accepting/ending a call ................183
Accepting a call ............................. 340
Adjusting the volume for calls .......124
Basic menu (Bluetooth ®
interface) ....................................... 182
Calling (outgoing call) ....................184
Calling voicemail ............................ 185
Conference connection .................. 185
Connecting a mobile phone
(general information) .....................179
De-authorizing a mobile phone ......182
Ending an active call ......................185
Entering a number .........................184
External authorization
(Bluetooth ®
) ................................... 181
Function restrictions ......................178
General notes ................................ 177
Keypad ........................................... 110
Menu (on-board computer) ............340
Number from the phone book ........ 341
Operating options ..........................178
Overview of functions ....................185
Reception and transmission
volume ........................................... 183
Redialing ................................ 184, 341
Rejecting/ending a call .................340
Rejecting a call .............................. 183
Rejecting or accepting a waiting
call ................................................. 185
Safety notes .................................. 177
Sending DTMF tones ...................... 187
Switching hands-free microphone
on/off ............................................ 185
Toggling ......................................... 185
Using the telephone ....................... 183
see Bluetooth ®

see Call lists
Television
see TV Temperature
Coolant .......................................... 330
Coolant (on-board computer) ......... 337
Engine oil (on-board computer) ...... 337
Outside temperature ...................... 331
Setting (climate control) ................259
Setting (COMAND) .........................235
Theft deterrent locking system
Immobilizer ...................................... 68
Tilt/sliding sunroof
see Sliding sunroof
Time
Setting summer/standard time .....129
Setting the format .........................128
Setting the time ............................. 128
Setting the time/date format ........128
Setting the time zone ..................... 129
Timing (RACETIMER) ......................... 338
Tiredness assistant see ATTENTION ASSIST
Tire pressure
Calling up (on-board computer) .....449
Checking manually ........................449
Display message ............................ 372
Maximum ....................................... 448
Notes ............................................. 447
Recommended ............................... 445
Tire pressure monitoring system
Function/notes ............................. 449
Restarting ...................................... 451
Warning lamp ................................. 385
Tires
Aspect ratio (definition) .................464
Average weight of the vehicle
occupants (definition) ....................463
Bar (definition) ............................... 462
Characteristics .............................. 462
Checking ........................................ 443
Definition of terms .........................462
Direction of rotation ......................466
Display message ............................ 372
Distribution of the vehicle
occupants (definition) ....................465
DOT, Tire Identification Number
(TIN) ............................................... 461
DOT (Department of
Transportation) (definition) ............46222Index

Activating/deactivatingXTurn the SmartKey to position 2 in the
ignition lock.XTo activate: press the ^ rocker switch
up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.XTo deactivate: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.
Activating/deactivating the cooling
with air dehumidification function
Important information
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
GWARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
You can activate or deactivate the cooling
with air dehumidification function via
COMAND ( Y page 237).
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Problems with the cooling with air
dehumidification function
If you can no longer switch on the cooling with
air dehumidification function via COMAND,
the cooling with air dehumidification function
is switched off due to a malfunction.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
XTurn the SmartKey to position 2 in the
ignition lock.XSet the desired temperature.X To switch on: press the à rocker
switch up or down.
The indicator lamp in the à rocker
switch lights up.XTo deactivate: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
XSet the air distribution using COMAND
( Y page 236).
The indicator lamp in the à rocker
switch goes out.258Operating the climate control systemClimate control

from outside. The air already inside the
vehicle will then be recirculated.GWARNING
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the ¬
button.
XTurn the SmartKey to position 2 in the
ignition lock.XTo activate: press the g rocker switch
up or down.
The indicator lamp in the g rocker
switch lights up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. The indicator lamp in the
g rocker switch is not lit when
automatic air-recirculation mode is
activated.
Outside air is added after about 30
minutes.
X To deactivate: press the g rocker
switch up or down.
The indicator lamp in the g rocker
switch goes out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes if
outside temperatures are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †)
Activating/deactivating the residual
heat function
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.XTurn the SmartKey to position 0 in the
ignition lock or remove it.XTo activate: press the Ì rocker switch
up or down.
The indicator lamp in the Ì rocker
switch lights up.XTo deactivate: press the Ì rocker
switch up or down.
The indicator lamp in the Ì rocker
switch goes out.
i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low
Setting the air vents
Important safety notes
GWARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Setting the air vents261Climate controlZ

ProblemPossible causes/consequences and M SolutionsThe engine is not
running smoothly and
is misfiring.There is a malfunction in the engine electronics or a mechanical
component of the engine management system.XOnly depress the accelerator pedal slightly.XHave the cause rectified immediately at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.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 ( Y page 411). Observe the warning
notes as you do so and add coolant if necessary.Automatic transmission
Important safety notes
GWARNING
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
GWARNING
Keep in mind that turning off the engine alone
only will shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
DIRECT SELECT lever
Overview of transmission positions
The DIRECT SELECT lever is on the right of the
steering column.
PPark position with parking lockRReverse gearNNeutralDDrive
i The DIRECT SELECT lever always returns
to its original position. The current
transmission position P, R , N or D appears
in the transmission position display
( Y page 275) in the multifunction display.
Automatic transmission273Driving and parkingZ

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 33).
GWARNING
A driver's attention to the road and traffic
conditions must always be his/her primary
focus when driving.
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 just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
GWARNING
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/indicator lamps
Rmalfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible.GWARNING
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
GWARNING
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 †).
330Displays and operationOn-board computer and displays

! If the coolant temperature is too high a
display message is shown.
If the coolant temperature rises above
248 ‡(120 †), do not drive any further as
this could damage the engine.
Tachometer
The red band in the tachometer indicates the
engine's overrevving range.
! Do not drive in the overrevving range, as
this could damage the engine.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
The outside temperature display is in the
multifunction display ( Y page 332).
GWARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Changes in the outside temperature are
displayed after a short delay.
Operating the on-board computer
The on-board computer is activated as soon
as you turn the SmartKey to position 2 in 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.
:Multifunction display;~
Rejects or ends a call
Exits phone book/redial memory
6
Makes or accepts a call
Switches to the redial memory
WX
Adjusts the volume or operates the
RACETIMER in AMG vehicles
8
Mute=?
Switches on the Voice Control
System; see the separate operating
instructions?% Press briefly:
Back
Switches off the Voice Control
System
Hides display messages or calls up
the last Trip menu function used% Press and hold:
Calls up the standard display in the
Trip menuDisplays and operation331On-board computer and displaysZ