2012 MERCEDES-BENZ CL-Class weight

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

GAWR (Gross Axle Weight Rating)
(definition) ..................................... 463
GVW (Gross Vehicle Weight)
(definition) ..................................... 463
GVWR (Gross Vehicle Weight
Rating) (definition) .........................463
Important safety notes ..................442
Increased vehicle weight due to
optional equipment (definition) ......463
Kilopascal (kPa) (definition) ...........464
Labeling (overview) ........................458
Load bearing index (definition) ......465
Load index ..................................... 461
Load index (definition) ...................464
Maximum loaded vehicle weight
(definition) ..................................... 463
Maximum load on a tire
(definition) ..................................... 464
Maximum permissible tire
pressure (definition) ....................... 464
Maximum tire load .........................456
Maximum tire load (definition) .......464
Optional equipment weight
(definition) ..................................... 464
PSI (pounds per square inch)
(definition) ..................................... 464
Replacing ....................................... 465
Service life ..................................... 443
Sidewall (definition) .......................464
Speed rating (definition) ................463
Storing ........................................... 466
Structure and characteristics
(definition) ..................................... 462
Temperature .................................. 458
TIN (Tire Identification Number)
(definition) ..................................... 465
Tire bead (definition) ......................464
Tire pressure (definition) ................464
Tire pressures (recommended) ......463
Tire size (data) ............................... 466
Tire size designation, load-bearing
capacity, speed rating .................... 459
Tire tread ....................................... 443
Tire tread (definition) .....................464
Total load limit (definition) .............465
Traction ......................................... 457
Traction (definition) .......................465
Tread wear ..................................... 457Uniform Tire Quality Grading
Standards ...................................... 457
Uniform Tire Quality Grading
Standards (definition) ....................463
Unladen weight (definition) ............464
Wear indicator (definition) .............465
Wheel rim (definition) ....................463
see Flat tire
Tonal properties
see Sound settings
Top Tether ............................................ 59
Towing Important safety guidelines ...........435
Installing the towing eye ................435
Removing the towing eye ...............436
With the rear axle raised ................436
Towing away
With both axles on the ground .......436
Tow-starting
Emergency engine starting ............437
Important safety notes ..................435
Track
Selecting (CD, DVD, MP3) .............. 208
Traffic Announcements (TA)
Switching off .................................. 124
Traffic jam function ........................... 155
Traffic jam message see Dynamic route guidance/TMC
Traffic reports
Real-time traffic report ..................161
Switching on/off ........................... 158
Transmission
see Automatic transmission
Transporting the vehicle .................. 437
Treble, adjusting (sound) .................. 125
Trim pieces (cleaning instructions) . 420
Trip computer (on-board
computer) .......................................... 334
Trip meter see Trip odometer
Trip odometer
Calling up ....................................... 334
Resetting (on-board computer) ......335
Trunk
Emergency release ..........................85
Important safety guidelines .............82
Limiting the opening angle ............. 235Index23

ROnly hold the steering wheel by the rim.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury when the driver front air
bag inflates.
R Adjust the front-passenger seat as far back
as possible from the dashboard when the
seat is occupied.
R Occupants, especially children, should
never place their bodies or lean their heads
in the area of the door or the rear side trim
panel where the side impact air bag
inflates. This could result in serious injuries
or death should the side impact air bag be
deployed. Always sit as upright as possible,
wear the seat belt properly and use an
appropriately sized child restraint, infant
restraint or booster seat recommended for
the size and weight of the child.
Failure to follow these instructions can result
in severe injuries to you or other occupants.
If you sell your vehicle, it is important that you
make the buyer aware of this safety
information. Be sure to give the buyer this
Operator's Manual.GWARNING
Accident research shows that the safest place
for children in an automobile is in a rear seat.
There is a possibility for a side impact air bag-
related injury if occupants, especially
children, are not properly seated or restrained
when next to a side impact air bag which
needs to deploy rapidly in a side impact in
order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1)Occupants, especially children,
should never place their bodies or
lean their heads in the area of the
door where the side impact air bag
inflates. This could result in
serious injuries or death shouldthe side impact air bag be
deployed.(2)Always sit as upright as possible,
wear the seat belt properly and use
an appropriately sized infant
restraint, toddler restraint, or
booster seat recommended for the
size and weight of the child. and
for children 12 years old and
under, use an appropriately sized
infant restraint, toddler restraint,
or booster seat recommended for
the size and weight of the child.(3)Always wear seat belts properly.
If you believe that, even with the use of these
guidelines, it would be safer for your rear seat
occupants to have the rear mounted side
impact air bags deactivated, then
deactivation can be carried out upon your
written request at an authorized Mercedes-
Benz Center at an additional cost.
Please contact an authorized Mercedes-Benz
Center or call the Customer Assistance
Center (in the USA) at 1-800-FOR-MERCedes
(1-800-367-6372), or Customer Service (in
Canada) at 1-800-387-0100 for details.
The air bags are only deployed if the air bag
control unit detects the need for deployment.
Only in the event of such a situation will they
provide their supplemental protection.
The driver and passenger should always wear
their seat belts. Otherwise, it is not possible
for the air bags to provide their supplemental
protection.
In the event of other types of impacts and
impacts below air bag deployment
thresholds, the air bags will not deploy. The
driver and passengers will then be protected
to the extent possible by a properly fastened
seat belt. A properly fastened seat belt is also
needed to provide the best possible
protection in a rollover.
Air bags provide additional protection; they
are not, however, a substitute for seat belts.
All vehicle occupants must fasten their seat
Occupant safety43SafetyZ

belts regardless of whether your vehicle is
equipped with air bags or not.
It is important for your safety and that of your
passenger to have deployed air bags replaced
and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
function for the vehicle occupants in the
event of a crash.
Front air bags
The front air bags increase protection for the
driver's and front-passenger's head and
chest.
:Driver's air bag;Front-passenger front air bag=Knee bag
Driver's air bag : deploys in front of the
steering wheel; front-passenger front air
bag ; deploys in front of and above the glove
box.
They are deployed:
R in the event of certain frontal impacts
R if the system determines that air bag
deployment can offer additional protection
to that provided by the seat belt
R if the seat belt is fastened
R independently of other air bags in the
vehicle
If the vehicle overturns, the front air bags are
generally not deployed unless the system
detects high vehicle deceleration in a
longitudinal direction.
Your vehicle has adaptive, two-stage front air
bags. In the event of a collision, the air bag
control unit evaluates the vehicle
deceleration. In the first deployment stage,
the front air bag is filled with enough
propellant gas to reduce the risk of injuries.
The front air bag is fully deployed if a second
deployment threshold is exceeded within a
few milliseconds.
The deployment of the front-passenger front
air bag is also influenced by the weight
category of the front passenger, which is
determined by the Occupant Classification
System (OCS) ( Y page 46).
The lighter the passenger side occupant, the
higher the vehicle deceleration rate required
(predicted at the start of the impact) for
second stage inflation of the front-passenger
front air bag. In the second stage, the front
air bags are inflated with the maximum
amount of propellant gas available.
The front air bags are not deployed in
situations where a low impact severity is
predicted. You will then be protected by the
fastened seat belt.
The front-passenger front air bag will only
deploy if:
R the system, based on the OCS weight
sensor readings, detects that the front-
passenger seat is occupied.
R the 42 indicator lamp in the
center console is not lit, ( Y page 46).
R the air bag control unit predicts a high
impact severity.
Driver's knee bag
Driver's knee bag =(Y page 44) provides
additional protection for the driver against:
R knee injuries
R thigh injuries
R lower leg injuries
Driver's knee bag =(Y page 44) deploys
below the steering wheel. During a frontal
impact, if the system determines that air bag
deployment can offer additional protection to
44Occupant safetySafety

Window curtain air bags
The window curtain air bags enhance the level
of protection for the head, but not chest or
arms, of the vehicle occupants on the side of
the vehicle on which the impact occurs.
The window curtain air bags are integrated
into the side of the roof frame and deploy in
the area extending from the front door (A-
pillar) to the rear sidewall (C-pillar).
Window curtain air bags : are deployed:
R on the side on which an impact occurs
R at the start of an accident with a high rate
of lateral vehicle deceleration or
acceleration, e.g. in a side impact
R regardless of whether the front-passenger
seat is occupied
R independently of seat belt use
R if the vehicle overturns and the system
determines that window curtain air bag
deployment can offer additional protection
to that provided by the seat belt
R independently of the front air bags
Window curtain air bags : will not deploy in
impacts with deceleration rates which do not
exceed the system's preset deployment
thresholds for vehicle deceleration or
acceleration. You will then be protected by
the fastened seat belt.
Occupant Classification System
(OCS)
How the occupant classification
system works
The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat by means of a weight sensor.
The front-passenger front air bag is
deactivated automatically for certain weight
categories. The 42 indicator
lamp shows you the current status. If the
42 indicator lamp is illuminated,
the front-passenger front air bag is
deactivated.
The system does not deactivate:
R the side impact air bag
R the window curtain air bag
R the Emergency Tensioning Devices
To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in a position that is as upright as possible
with their back against the seat backrest
R with their feet on the floor
If the front-passenger's weight is transferred
to another object in the vehicle (e.g. by
leaning on armrests), OCS may not be able to
approximate the occupant's weight category.
If the front-passenger seat, the seat cover or
the seat cushion are damaged, have the
necessary repair work carried out at an
authorized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories which have been approved by
Mercedes-Benz.
Both the driver and the passenger should
always use the 42 indicator
lamp as an indication of whether or not the
passenger is properly positioned.
GWARNING
If the 42 indicator lamp lights up
when an adult or someone larger than a small
46Occupant safetySafety

individual is in the front-passenger seat, have
the front passenger reposition himself or
herself in the seat until the 42
indicator lamp goes out.
In the event of a collision, the air bag control
unit will not allow front-passenger front air
bag deployment when the OCS has classified
the front-passenger seat occupant as
weighing as much as or less than a typical 12-
month-old child in a standard child restraint
or if the front-passenger seat is classified as
being empty.
When the OCS senses that the front-
passenger seat occupant is classified as
being up to or less than the weight of a typical
12-month-old child in a standard child
restraint, the 42 indicator lamp
will illuminate when the engine is started and
remain illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat is classified as being empty,
the 42 indicator lamp will
illuminate when the engine is started and
remain illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat occupant is classified as
being heavier than the weight of a typical 12-
month-old child seated in a standard child
restraint or as being a small individual (such
as a young teenager or a small adult), the
42 indicator lamp will illuminate
for approximately 6 seconds when the engine
is started and then, depending on occupant
weight sensor readings from the front-
passenger seat, remain illuminated or go out.
With the 42 indicator lamp
illuminated, the front-passenger front air bag
is deactivated. With the 42
indicator lamp out, the front-passenger front
air bag is activated.
When the OCS senses that the front-
passenger seat occupant is classified as an
adult or someone larger than a small
individual, the 42 indicator lampwill illuminate for approximately 6 seconds
when the engine is started and then go out,
indicating that the front-passenger front air
bag is activated.
If the 42 indicator lamp is
illuminated, the front-passenger front air bag
is deactivated and will not be deployed.
If the 42 indicator lamp is not
illuminated, the front-passenger front air bag
is activated and will be deployed:
R in the event of certain frontal impacts
R if impact exceeds a preset deployment
threshold
R independently of the side impact air bags
If the front-passenger front air bag is
deployed, the rate of inflation will be
influenced by:
R the rate of vehicle deceleration as assessed
by the air bag control unit
R the front passenger's weight category as
identified by OCS
For further information, see "Air bag display
messages" ( Y page 357).GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seats whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child.
The infant or child restraint system must be
properly secured with the vehicle's seat belt,
the seat belt and Top Tether strap, or lower
anchors and Top Tether strap, fully in
accordance with the child seat
manufacturer's instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriate sized infant
Occupant safety47SafetyZ

restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front-
passenger seat:
R Your vehicle is equipped with air bag
technology designed to deactivate the
front-passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate
child restraint on the front-passenger seat.
R A child in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology installed
in your vehicle. The only means to eliminate
this risk completely is never to place a child
in a rear-facing child restraint in the front-
passenger seat. We therefore strongly
recommend that you always place a child
in a rear-facing child restraint on the rear
seat.
R If you install a rear-facing child restraint on
the front-passenger seat, make sure the
42 indicator lamp is
illuminated, indicating that the front-
passenger front air bag is deactivated.
Should the 42 indicator lamp
not illuminate or go out while the restraint
is installed, please check installation.
Periodically check the 42
indicator lamp while driving to make sure
the 42 indicator lamp is
illuminated. If the 42 indicator
lamp goes out or remains out, do not
transport a child on the front-passenger
seat until the system has been repaired.
A child in a rear-facing child restraint on the
front-passenger seat will be seriouslyinjured or even killed if the front-passenger
front air bag inflates.
R If you place a child in a forward-facing child
restraint on the front-passenger seat:
- move the seat as far back as possible
- use the proper child restraint
recommended for the age, size and
weight of the child
- secure child restraint with the vehicle's
seat belt according to the child seat
manufacturer's instructions
R For children larger than a typical 12-month-
old child, the front-passenger front air bag
can be activated or deactivated.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
also has to deploy.
The OCS may have detected that the seat:
R was empty or occupied by a person with a
weight of up to or less than that of a typical
12-month-old child seated in a standard
child restraint
R was occupied by a small individual, such as
a young teenager or a small adult
R was occupied by a child in a child restraint
system, whose weight is greater than that
of a typical 12-month-old child.
These are examples of when the OCS
deactivates the front-passenger front air bag.
Deactivation takes place although the
collision fulfills the criteria for deploying the
driver's air bag.48Occupant safetySafety

If the SmartKey has been removed from the
ignition lock or is in position 0, indicator lamp
42 : does not light up.GWARNING
If the red SRS 6 indicator lamp in the
instrument cluster and the 42
indicator lamp are lit at the same time, there
is a malfunction in the OCS. The front
passenger front air bag will be deactivated in
this case. Have the system checked by
qualified technicians as soon as possible.
Contact an authorized Mercedes-Benz
Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
R Sit with the seat belt properly fastened in a
position that is as upright as possible with
your back against the seat backrest.
R When seated, a passenger should not
position him/herself in such a way as to
cause the passenger's weight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly
approximate the passenger's weight
category.
R Read and observe all warnings in this
chapter.
System self-test
The 42 indicator lamp
illuminates when you:
R turn the SmartKey to position 1 or 2 in the
ignition lock
R press the KEYLESS-GO Start/Stop button
once or twice
If an adult occupant is properly sitting on the
passenger seat and the OCS classifies the
occupant as an adult, the 42
indicator lamp illuminates and goes out again
after approximately 6 seconds.
If the seat is not occupied and the OCS
classifies the front passenger seat as being
unoccupied, the 42 indicator
lamp will illuminate and not go out.GWARNING
If the 4 2 indicator lamp does
not illuminate, the system is not functioning.
You must contact an authorized Mercedes-
Benz Center before seating any child on the
front passenger seat.
For more information, see "Problems with the
Occupant Classification System"
( Y page 50).
GWARNING
Never place anything between seat cushion
and child seat (e.g. a pillow), since it reduces
the effectiveness of the OCS. The underside
and rear side child restraint system must be
placed entirely on the seat cushion and the
backrest of the front-passenger seat
backrest.
If necessary, adjust the tilt of the passenger
seat backrest.
An incorrectly mounted child seat could cause
injuries to the child in case of an accident,
instead of increasing protection for the child.
Follow the manufacturer's instructions for
installation of child restraint systems.
Occupant safety49SafetyZ