Connecting a mobile phone
(general information
)..................... 183
De-authorizing a mobile phone ......186
Ending an active call ......................189
Entering anumbe r......................... 188
External authorization (Bluetooth ®
)1 85
Function restrictions ......................182
General notes ................................ 181
Keypad .......................................... .114
Menu (on-board computer) ............346
Number from the phone book ....... .346
Operating options ..........................182
Overview of functions ....................189
Reception and transmission
volume ........................................... 187
Redialing ........................................ 347
Rejecting/ending acall................. 346
Rejecting acall.............................. 187
Rejecting or accepting a waiting
call ................................................. 189
Safety notes .................................. 181
Sending DTMF tones ..................... .191
Switching hands-free microphone
on/off ............................................ 189
Toggling ......................................... 189
Using the telephone ....................... 187
see Bluetooth ®
see Call lists
Telephone mode
Redialing ........................................ 188
Telephone module with
Bluetooth ®
SIM Access Profile
see separate installation instructions
Temperature
Coolant .......................................... 336
Coolant (on-board computer) ......... 343
Engine oil (on-board computer) ...... 343
Outside temperature ..................... .337
Setting (climate control) ................265
Setting (COMAND) .........................240
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........70
Immobilize r...................................... 70
Tilt/sliding sunroof
see Sliding sunroof Time
Setting ........................................... 131
Setting summer/standard time .....132
Setting the forma t......................... 131
Setting the time ............................. 131
Setting the time/date forma t........ 131
Setting the time zone ..................... 132
Timing (RACETIMER) .........................344
Tiredness assistant see ATTENTION ASSIST
Tire pressure
Calling up (on-board computer) .....461
Checking manually ........................461
Display message ............................ 382
Important safety notes ..................461
Maximum ....................................... 461
Notes ............................................. 459
Recommended ............................... 458
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 463
Function/notes ............................. 461
General notes ................................ 461
Important safety notes ..................462
Restarting ...................................... 464
Warning lamp ................................. 398
Warning message .......................... 463
Tires
Aspect ratio (definition) .................476
Average weight of the vehicle
occupants (definition) ....................474
Bar (definition) ............................... 474
Characteristics .............................. 474
Checking ........................................ 455
Definition of terms .........................474
Directio nofrotation ...................... 477
Display message ............................ 382
Distributio nofthe vehicle
occupants (definition) ....................476
DOT, Tire Identification Number
(TIN) .............................................. .473
DOT (Department of
Transportation) (definition) ............474
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 475
GVW (Gross Vehicle Weight)
(definition) ..................................... 47522
Index
GVWR (Gross Vehicle Weight
Rating) (definition)
.........................475
Important safety notes ..................454
Increased vehicle weight due to
optional equipment (definition) ......474
Kilopascal (kPa) (definition) ...........475
Labeling (overview )........................ 470
Load bearing index (definition) ......476
Load index ..................................... 473
Load index (definition) ...................475
M+S tires ....................................... 456
Maximum loaded vehicle weight
(definition) ..................................... 475
Maximum load on a tire (definition) 475
Maximum permissible tire
pressure (definition) ....................... 475
Maximum tire loa d......................... 468
Maximum tire load (definition) .......475
MOExtended tires ..........................456
Optional equipment weight
(definition) ..................................... 476
PSI (pounds per square inch)
(definition) ..................................... 475
Replacing ....................................... 477
Service life ..................................... 456
Sidewall (definition) .......................476
Speed rating (definition) ................475
Storing ........................................... 477
Structure and characteristics
(definition) ..................................... 474
Temperature .................................. 470
TIN (Tire Identification Number)
(definition) ..................................... 476
Tire bea d(definition) ...................... 476
Tire pressure (definition) ................476
Tire pressures (recommended )...... 474
Tire size (data) ............................... 477
Tire size designation, load-bearing
capacity, speed rating .................... 471
Tire tread ....................................... 455
Tire tread (definition) .....................476
Total load limit (definition) .............476
Traction ......................................... 469
Traction (definition) .......................476
Trea dwear ..................................... 469
Uniform Tire Quality Grading
Standard s...................................... 469Uniform Tire Quality Grading
Standard
s(definition) .................... 474
Unladen weight (definition) ............475
Wea rindicato r(definition) .............476
Whee lrim (definition ).................... 474
see Flat tire
Tonal properties
see Sound settings
Top Tether ............................................ 63
Towing Important safety guidelines ...........446
Installing the towing eye ................447
Removing the towing eye. ..............448
With the rear axle raised ................448
Towing away
With both axles on the ground .......448
Tow-starting
Emergency engine starting ............449
Important safety notes ..................446
Track
Selecting (CD, DVD, MP3) .............. 213
Traffic Announcements (TA)
Switching off .................................. 127
Traffic jam function ........................... 159
Traffic jam message see Dynami croute guidance/TMC
Traffic reports
Real-time traffic report ..................165
Switching on/off ........................... 162
Transfer case ..................................... 286
Transmission see Automatic transmission
Transporting the vehicle ..................448
Treble ,adjusting (sound) ..................128
Trim pieces (cleaning instructions) .433
Trip computer (on-board computer) 340
Trip meter see Trip odometer
Trip odometer
Calling up ....................................... 340
Resetting (on-board computer) ......341
Trunk
Automatic opening ........................... 85
Emergency release ..........................87
Important safety guidelines .............84
Limiting the opening angle ............. 239 Index
23
R
do not lean your head or chest close to the
steering wheel or dashboard.
R only hold the steering wheel on the outside.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury if 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 or fatal
injuries should the side impact air bag be
deployed. Always sit as upright as possible,
wear the seat belt properly and use an
appropriately sized infan trestraint, toddler
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. G
WARNING
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 nextt o 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 should the 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 extentp ossible by a properly fastened
seat belt. Aproperly fastened seat belti s 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 safety
47Safety Z
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 fron
tair 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 at the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction
R if the system determines that air bag
deploymen tcan offer additional protection
to that provided by the seat belt
R depending on whether the seat belt is being
used
R independently of other air bags in the
vehicle If the vehicle rolls over, the fron
tair bags are
generally not deployed. If the system detects
high vehicle deceleration in alongitudinal
direction, the front air bags are deployed.
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 50).
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.
Front-passenger front air bag ;will only be
deployed if:
R the system, based on the OCS weight
sensor readings, detects that the front-
passenger seat is occupied
R the PASSENGER AIR BAG OFF indicator
lamp on the center console is not lit
(Y page 50)
R the air bag control unit predicts a high
impact severity
Driver's knee bag Driver's knee bag
=(Ypage 48) provides
additional protection for the driver against: 48
Occupant safetySafety
The side impact air bag on the front-
passenger side will not deploy under the
following conditions:
R
the OCS detects that the front-passenger
seat is not occupied.
R the front-passenger seat belt is not
fastened.
The side impact air bag on the front-
passenger side will deploy if the front-
passenger seat belt is fastened, regardless of
whether the front-passenger seat is occupied
or not.
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 aside 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 deploymen
tcan offer additional protection
to that provided by the seat belt
R independently of the fron tair bags
Window curtain air bags :will not deploy in
impacts with deceleration rates which do not
exceed the system's prese tdeployment
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 fron tair 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 impac tair 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 cushio nare damaged, have the
necessary repair work carried out at an
authorized Mercedes-Benz Center. 50
Occupant safetySafety
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories that have bee napproved 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. G
WARNING
If the 42 indicator lamp lights up
when an adult or someone larger than a small
individual is in the front-passenger seat, have
the fron tpassenger 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 no tallow front-passenge rfront air
bag deployment when the OCS has classified
the front-passenge rseat 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 fron tair 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, indicatin gthat 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 astandard child
restraint or as being a small individual (such
as a young teenager or asmall adult), the
42 indicator lamp will illuminate
for approximately 6seconds 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 fron tair 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 lamp
will illuminate for approximately 6seconds
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 fron tair bag
is deactivated and will not be deployed.
If the 42 indicator lamp is not
illuminated, the front-passenge rfront 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 deceleratio nas 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 364). G
WARNING
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 Occupant safety
51Safety
Z
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, weart
he seat belt
properly and use an appropriate sized infant
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 Ac hild 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 42indicator
lamp goes out or remains out, do not
transport a child on the front-passenger
seat until the system has been repaired.
Ac hild 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.
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
will also deploy.
The OCS may have detected that the seat:
R is either empty or occupied by a person
with a weight up to that of a typical twelve-
month-old child seated in astandard child
restraint
R is occupied by a small individual, such as a
young teenager or a small adult
R is occupied by a child in a child restraint
system, whose weight is greate rthan that
of a typical twelve-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. 52
Occupant safetySafety
If the SmartKey has been removed from the
ignition lock or is in position 0,
42 indicator lamp:does not
lightu p. G
WARNING
If the red SRS 6indicator 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 fron tair 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-Ben zCenter.
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 1or 2in the
ignition lock
R press the KEYLESS-GO Start/Stop button
once or twice
If an adult occupant is sitting properly on the
front-passenger seat and the OCS classifies
the occupant as an adult, the
42 indicator lamp will illuminate
and go out again after approximately six
seconds.
If the seat is not occupied and the OCS
classifies the fron tpassenger seat as being
unoccupied, the 42indicator
lamp will illuminate and no tgo out. G
WARNING
If the 42indicator lamp does
not illuminate, the system is not functioning.
You must contac tanauthorized Mercedes-
Benz Center before seating any child on the
fron tpassenger seat.
For more information, see "Problems with the
Occupan tClassification System"
(Y page 54). G
WARNING
Neve rplace anything betwee nseat 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 safety
53Safety Z