2010 MERCEDES-BENZ CL CLASS ECU

Index
....................................................... 4Introduction .........................................
20 At a glance
........................................... 25 Safety and security
.............................35 Control systems ..................................
67 Controls in detail
.............................. 251 Operation ...........................................
365 Practical hints ...................................
411 Technical data ...................................
479 Contents
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Light sensor ...................................
448
Low-beam lamps ............................
448
Night View Assist ........................... 438
Park Assist ..................................... 422
Parking lamps ................................ 447
PRE-SAFE ®
.................................... 416
Radar sensors ................................ 424
Reserve fuel ................................... 445
Reverse lamp ................................. 446
Side marker lamps .........................446
SmartKey ....................................... 440
SmartKey with KEYLESS-GO .......... 440
SRS ................................................ 436
Tele Aid .......................................... 436
Tire inflation pressure ............426, 450
Tire pressure monitor .................... 426
Tires ...................................... 426, 450
Trunk ............................................. 439
Turn signals ................................... 449
Multifunction steering wheel
Adjustment .................................... 270
Buttons .......................................... 202
Cleaning ......................................... 409
Gearshift control ............................ 297
Heating .......................................... 270
Memory function ........................... 273
Music Register ................................... 180N
Navigation ............................................ 83
Alternative route ............................ 125
Compass ........................................

124
Destination memory ......................132
Entering a destination ...................... 93
Entering a stopover ........................ 109
Introduction ..................................... 83
Lane recommendation ...................118
Last destinations ........................... 134
Map software version ......................83
Points of interest (POI) ................... 111
Route guidance .............................. 116
Traffic messages ............................ 125
Zagat ®
Rating Service .................... 115
“Where am I?” function .................. 123
Navi menu .......................................... 206
Nets, parcel ....................................... 348
Night security illumination .............. 191Night View Assist
.............................. 333
Cleaning the

windshield in front of
the camera .................................... 407
Messages in the multifunction
display ........................................... 438
Normal occupant weight .................. 394
Number, vehicle identification
(VIN) ................................................... 481 O
Occupant Classification System see OCS

(Occupant Classification
System)
Occupant distribution ....................... 394
Occupant safety Air bags ........................................... 37
Children and air bags ....................... 37
Children in the vehicle .....................51
Child seat anchors – LATCH-type
(ISOFIX) ........................................... 54
Fastening the seat belts ................... 47
Front passenger front air bag off
indicator lamp .......................... 41, 459
Infant and child restraint systems .... 51
Introduction ..................................... 36
ISOFIX (Child seat anchors –
LATCH-type) ..................................... 54
OCS (Occupant Classification
System) ........................................... 41
PRE-SAFE ®
....................................... 49
Seat belts .................................. 39, 45
OCS (Occupant Classification
System) ................................................ 41
Self-test ........................................... 45
Odometer ........................................... 204
Oil, oil level see Engine oil
On-board computer
see Control system
One-touch gearshifting .....................297
Operating safety .................................. 22
Ornamental moldings, cleaning .......406
Overhead control panel ......................34 Index
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Rear seat head restraints
see Head restraints

Rear side window
Override switch ................................ 55
Rear view camera .............................. 332
Cleaning the camera lens .............. 407
Rear window defroster ..................... 344
Recommended tire inflation
pressure ..................................... 374, 394
Refrigerant, air conditioning ............ 493
Refueling ............................................ 366
Regular checks .................................. 367
Reminder, Seat belt see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door lock (Tele Aid) .............359
Remote door unlock (Tele Aid) .........359
Replacing
Key ................................................ 256
Replacing bulbs ................................. 463
Reporting safety defects .................... 23
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 445
Restraint systems
see Occupant safety
Retaining hook .................................. 348
Rims ........................................... 394, 486
Roadside Assistance ...................21, 356
RON (Research Octane Number) ..... 494
Rubber parts, cleaning ...................... 409 S
Safety Driving safety systems ..................... 56
Occupant safety ............................... 36
Reporting defects

............................23
Safety belts
see Seat belts
Satellite radio .................................... 157
SD card ............................................... 166
Seat belt force limiter ......................... 48
Seat belts ............................................. 45
Automatic comfort-fit feature .......... 49Children in the vehicle
.....................51
Cleaning ......................................... 409
Fastening ......................................... 47
Proper use of ................................... 46
Safety guidelines

............................. 39
Safety notes ..................................... 45
Telltale ..................................... 29, 454
Seat heating ....................................... 269
Seating capacity ................................ 382
Seats .................................................. 264
Adjustment .................................... 264
Drive-dynamic ................................ 199
Heating .......................................... 269
Memory function ........................... 273
Messages in the multifunction
display ........................................... 439
Ventilation ..................................... 269
Selective setting
see Key, SmartKey
Selector lever
see Gear selector lever
Self-test
OCS (Occupant Classification
System) ........................................... 45
Tele Aid .......................................... 354
Service
see Maintenance
Service, parts .................................... 480
Service and warranty information .....20
Service intervals see Maintenance System, Service
indicator message
Service life (tires) .............................. 386
Service menu ..................................... 214
Settings Automatic locking .......................... 193
Automatic mirror folding ................ 192
Display settings (COMAND) ............. 79
Easy-entry/exit feature .................. 190
Factory setting (KEYLESS-GO) ....... 255
Factory setting (SmartKey) ............253
Individual (vehicle) ......................... 214
Interior ambient lighting ................ 192
Language ......................................... 81
Locator lighting .............................. 192
Memory function ........................... 273
Night security illumination ............. 191
Rear window sunshade ..................190 Index
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Vehicle equipment ..............................
36
Occupant safety .................................. 36
Panic alarm .......................................... 55
Driving safety systems ....................... 56
Anti-theft systems .............................. 65 35Safety and security
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Vehicle equipment
i This Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual. Occupant safety
Introduction
In this section you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint systems are:
R Seat belts
R Child restraints
R Lower Anchors and Tethers for CHildren
(LATCH) also known as ISOFIX
Additional protection
potential is provided by:
R Supplemental Restraint System (SRS) with
- Air bags
- Air bag control unit (with crash sensors)
- Emergency Tensioning Device (ETD) for
seat belts
- Seat belt force limiter
R Preventive occupant safety (PRE-SAFE
®
)
R Air bag system components with
-Front passenger front air bag off
indicator lamp
- Front passenger seat with Occupant
Classification System (OCS)
Although the systems are independent, their
protective functions

work in conjunction with
each other. G
Warning!
Modifications to or work improperly
conducted on restraint system components or their wiring, as well as tampering with
interconnected electronic systems, can lead
to
the

restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See “Children in the vehicle”
(Y page 51) for information on
R infants and children traveling with you in
the vehicle
R restraint systems for infants and children SRS indicator lamp
The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates detection of system malfunctions.
The SRS indicator lamp 6 in the
instrument cluster comes on when the
ignition is switched on. It goes out no later
than a

few seconds after the engine has been
started.
The SRS components are in operational
readiness when the SRS indicator lamp
6 is not lit while the engine is running. G
Warning!
The SRS self-check has detected a
malfunction when the SRS indicator lamp
6
R does not come on at all
R fails to go out after approximately
4 seconds after the engine was started
R comes on after the engine was started or
while driving 36
Occupant safety
Safety and security
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For your safety, we strongly recommend that
you contact an authorized Mercedes-Benz
Center immediately to have the system
checked. Otherwise the SRS may not be
activated
when
needed in an accident, which
could result in serious or fatal injury. The SRS
might also deploy unexpectedly and
unnecessarily which could also result in injury
as well.
In addition, improper work on the SRS creates
a risk of rendering the SRS inoperative or
causing unintended air bag deployment. Work
on the SRS must therefore only be performed
by qualified technicians. Contact an
authorized Mercedes-Benz Center.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz Center.
USA only: Call our Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) for details. Air bags
G
Warning!
Air bags are designed to reduce the potential
of injury and fatality in certain
R frontal impacts (front air bags and driver’s
side knee bag)
R side impacts (side impact air bags and
window curtain air bags)
R rollovers (window curtain air bags)
However, no system available today can
completely eliminate injuries and fatalities.
Deployment of the air bags temporarily
releases a small amount of dust from the air
bags. This dust, however, is neither harmful
to your

health, nor does it indicate a fire in the
vehicle. The dust might cause some
temporary breathing difficulty for people with
asthma or other breathing trouble. To avoid
this, you may wish to get out of the vehicle as
soon as it is safe to do so. If you have any
breathing difficulty but cannot get out of the vehicle after the air bag inflates, then get fresh
air by opening a window or door.
G
Warning!
To reduce the risk of injury when the front air
bags inflate,

it is very important for the driver
and front passenger to always be in a properly
seated position and to wear their respective
seat belt.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the seat backrest.
Fasten your seat belt and make sure it is
properly positioned on your body.
Since the air bag inflates with considerable
speed and force, a proper seating position
and correct positioning of the hands on the
steering wheel will help to keep you at a safe
distance from the air bag. Occupants who are
not wearing their seat belt, are not seated
properly or are too close to the air bag can be
seriously injured or killed by an air bag as it
inflates with great force instantaneously:
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 Move the driver’s seat as far back as
possible, still permitting proper operation
of vehicle controls. The distance from the
center of the driver’s chest to the center of
the air bag cover on the steering wheel
must be at least 10 inches (25 cm) or more.
You should be able to accomplish this by
adjusting the seat and steering wheel. If
you have any difficulties, please contact an
authorized Mercedes-Benz Center.
R Do not lean your head or chest close to the
steering wheel or dashboard.
R Keep hands on the outside of the steering
wheel 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. Occupant safety
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R
Adjust the front passenger seat as far as
possible rearward 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 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
infant restraint, 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 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 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.
Air bags are designed to deploy only in certain
R frontal impacts (front air bags and driver’s
side knee bag)
R side impacts (side impact and window
curtain air bags) if the system determines
the need for air bag deployment
R rollovers (window curtain air bags)
Only in the event of such a situation will they
provide their supplemental protection.
The driver and passengers should always
wear their seat belts. Otherwise it is not
possible for the air bags to provide their
supplemental protection.
In case of other types of impacts and impacts
below air bag deployment thresholds, 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 are not a substitute for seat belts.
Always wear your seat belt, regardless of
whether or not your vehicle is equipped with
air bags. 38
Occupant safety
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It is important to your safety and that of your
passengers to have deployed air bags
replaced and to have any malfunctioning air
bags
repaired.
This will help to make sure the
air bags will continue to provide supplemental
crash protection for occupants.
Safety guidelines for the seat belt,
Emergency Tensioning Device (ETD)
and air bag G
Warning!
R Damaged seat

belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or supplied by an authorized
Mercedes-Benz Center.
R Air bags and pyrotechnic Emergency
Tensioning Devices (ETDs) contain
perchlorate material, which may require
special handling and regard for the
environment. Check with your local
government’s disposal guidelines.
California residents, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
R Air bags and ETDs are designed to function
on a one-time-only basis. An air bag or ETD
that has deployed must be replaced.
R Do not pass seat belts over sharp edges.
They could tear.
R Do not make any modification that could
change the effectiveness of the seat belts.
R Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
R No modifications of any kind may be made
to any components or wiring of the SRS.
R Do no change or remove any component or
part of the SRS.
R Do not install additional trim material, seat
covers, badges, etc. over the steering
wheel hub, front passenger front air bag cover, outboard sides of the seat
backrests, door trim panels, or door frame
trims.
R Do not install additional electrical/
electronic equipment on or near SRS
components and wiring.
R Keep area

between air bags and occupants
free of objects (e.g. packages, purses,
umbrellas, etc.).
R Do not hang items such as coat hangers
from the coat hooks or handles over the
door. These items may be thrown around in
the vehicle and cause head and other
injuries when the window curtain air bag is
deployed.
R Air bag system components will be hot after
an air bag has inflated. Do not touch them.
R Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
R Improper repair work on the SRS creates a
risk of rendering the SRS inoperative or
causing unintended air bag deployment.
Work on the SRS must therefore only be
performed by qualified technicians.
Contact an authorized Mercedes-Benz
Center.
R For your protection and the protection of
others, when scrapping the air bag unit or
ETD, our safety instructions must be
followed. These instructions are available
from any authorized Mercedes-Benz
Center.
R Given the considerable deployment speed,
required inflation volume, and the material
of the air bags, there is the possibility of
abrasions or other, potentially more serious
injuries resulting from air bag deployment.
If you sell your vehicle, we strongly
recommend that you inform the subsequent
owner that the vehicle is equipped with SRS.
Also refer them to the applicable section in
the Operator’s Manual. Occupant safety
39
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