ECU MERCEDES-BENZ CLS 2010 Owners Manual

Index
....................................................... 4Introduction .........................................
19 At a glance
........................................... 25 Safety and security
.............................35 Controls in detail
................................. 65 Operation ...........................................
175 Practical hints ...................................
223 Technical data ...................................
287 Contents
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Memory function .............................. 85
Vanity mirror ..................................
162
MOExtended system ......................... 277
MOExtended tires ..................... 277, 292
MON (Motor Octane Number) ..........299
Motor Octane Number see MON

Multicontour seat ................................ 80
Multifunction display ........................ 111
Symbol messages .......................... 238
Text messages ............................... 229
Vehicle status messages ............... 228
Multifunction display messages
ABS ....................................... 229, 239
Active headlamps .......................... 247
Advanced TPMS ..................... 236, 250
Air bags ......................................... 230
Air filter .......................................... 246
AIRMATIC DC (Dual Control) .......... 240
Alternator ...................................... 245
Automatic transmission ................. 235
Battery ........................................... 245
Brake fluid ..................................... 239
Brake pads ..................................... 238
Check engine ................................. 243
Coolant .......................................... 243
Corner-illuminating front fog
lamps ............................................. 249
Cruise control ................................ 233
Distronic ........................................ 233
Doors ............................................. 241
EBP ................................................ 239
Engine oil ....................................... 246
Engine service ............................... 243
ESP ®
...................................... 229, 239
Fog lamps .............................. 247, 249
Front passenger front air bag ........230
Gas cap .......................................... 246
Gear selector lever ........................235
High-beam lamps ........................... 248
Hood .............................................. 241
License plate lamps ....................... 248
Light sensor ................................... 248
Low-beam lamps ............................ 249
Parking brake ................................ 239
Parking lamps ................................ 248
PRE-SAFE ®
.................................... 229Reserve fuel ...................................
246
Reverse lamp ................................. 247
Side marker lamps .........................248
SmartKey ....................................... 241
SmartKey with KEYLESS-GO ..........241
SRS ................................................ 240
Tail lamps ...................................... 249
Tele Aid .......................................... 240
Tire inflation pressure ............235, 250
Tire pressure monitor .................... 236
Tires ...................................... 235, 250
TPMS ..................................... 236, 250
Trunk ............................................. 241
Turn signals ................................... 250
Washer fluid ................................... 242
Multifunction steering wheel
Adjustment ...................................... 82
Buttons .......................................... 110
Cleaning ......................................... 220
Easy-entry/exit feature ...........83, 124
Gearshift control ............................ 106
Heating ............................................ 83
Memory function .............................. 85
Overview .......................................... 29 N
Navigation menu ............................... 117
Navigation system see Separate operating instructions


NECK-PRO active front head
restraints ............................................. 50
Resetting ....................................... 264
Net, parcel ......................................... 157
Night security illumination .............. 122
Normal occupant weight .................. 207
Number, vehicle identification
(VIN) ................................................... 289 O
Occupant Classification System see

OCS (Occupant Classification
System)
Occupant distribution ....................... 207
Occupant safety Air bags ........................................... 37
Children and air bags ....................... 3712
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R
RACETIMER ........................................ 114
Radio Selecting stations
..........................116
Radio transmitters ............................213
Rain sensor see Intermittent wiping
Rear axle oil ....................................... 297
Rear door ashtray see Ashtrays
Rear doors
Child safety locks ............................ 56
Rear door window
Override switch ................................ 56
Rear fog lamp
see Fog lamps
Rear lamps
see Tail lamps
Rear seat head restraints
see Head restraints
Rear window defroster ..................... 151
Recommended tire inflation
pressure ..................................... 183, 207
Refrigerant, air conditioning ............ 298
Refueling ............................................ 176
Regular checks .................................. 177
Reminder, Seat belt see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door unlock (Tele Aid) .........168
Replacing
Key .................................................. 70
Replacing bulbs ................................. 266
Reporting safety defects .................... 22
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 246
Reset button ................................ 29, 109
Reset tool (NECK-PRO active front
head restraints) ................................. 264
Restraint systems see Occupant safety
Retaining hook .................................. 157
Rims ........................................... 207, 291Roadside Assistance
...................20, 166
RON (Research Octane Number) ..... 299
Roof rack ............................................ 155
Rubber parts, cleaning ......................
220
Run-flat tires see MOExtended tires S
Safety Driving safety systems ..................... 57
Occupant safety ...............................

36
Reporting defects ............................ 22
Safety belts
see Seat belts
Seat belt force limiter ......................... 49
Seat belts ............................................. 45
Automatic comfort-fit feature .......... 49
Children in the vehicle .....................52
Cleaning ......................................... 221
Fastening ......................................... 47
Height adjustment ...........................48
Proper use of ................................... 46
Safety guidelines ............................. 39
Safety notes ..................................... 45
Telltale ..................................... 28, 253
Seat heating ......................................... 81
Seating capacity ................................ 194
Seats ..................................................... 77 Adjustment ...................................... 77
Easy-entry/exit feature ....................83
Heating ............................................ 81
Memory function .............................. 85
Multicontour seat ............................ 80
Ventilation ....................................... 81
Securing cargo
Cargo tie-down hooks .................... 157
Selective setting
see Key, SmartKey
Selector lever
see Gear selector lever
Self-test
OCS (Occupant Classification
System) ........................................... 45
Tele Aid .......................................... 165
Service
see Maintenance
Service, parts .................................... 28814
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Vehicle equipment ..............................
36
Occupant safety .................................. 36
Panic alarm .......................................... 57
Driving safety systems ....................... 57
Anti-theft systems .............................. 62 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 NECK-PRO active front head restraints
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 52) 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 + 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
+ is not lit while the engine is running. 36
Occupant safety
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G
Warning!
The SRS self-check has detected a
malfunction when the SRS indicator lamp
+
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
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 Occupant safety
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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.
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. 38
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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.
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 Occupant safety
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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.
Front air bags G
Observe Safety notes, see page 37. Driver’s front air bag
: and front passenger
front air bag ; are designed to provide
increased protection for the driver and front
passenger against the risk of injuries to the
head and thorax.
Driver and front passenger front air bag and
driver’s side knee bag 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 depending on whether the respective seat
belt is in use
R independently of the side impact air bags
and/or the window curtain air bags The front air bags in this vehicle have been
designed to inflate in two stages. This allows
the air bags to have different rates of inflation.
The rate of inflation is based on the vehicle
deceleration rate as assessed by the air bag
control unit.
The front passenger front air bag deployment
is additionally influenced by the passenger’s
weight category as identified by the Occupant
Classification System (OCS) (
Y page 41).
The lighter the front passenger-side
occupant, the higher the vehicle deceleration
rate required for second stage inflation of the
front passenger front air bag.
The air bags will not deploy in impacts which
do not exceed the system’s preset
deployment thresholds. You will then be
protected by the fastened seat belts.
The front air bags will not deploy in the event
of a rollover unless the vehicle’s rate of
longitudinal deceleration or acceleration
exceeds the preset deployment threshold for
the front air bags.
The front passenger front air bag will only be
deployed if
R the system, based on OCS weight sensor
readings, detects that the front passenger
seat is occupied
R the 04 indicator lamp in the
center console is not lit (Y page 41)
R the impact exceeds a preset deployment
threshold
Knee bag
Knee bag = is designed to provide increased
protection for the driver against the risk of
injuries to the knees, thighs and lower legs.
Knee bag = is located on the driver side
lower instrument panel. It is designed to
operate together with the driver front air bag
in certain frontal impacts if the system
determines that air bag deployment can offer
additional protection to that provided by the
seat belt. Knee bag = operates best in 40
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conjunction with a properly positioned and
fastened seat belt.
Side impact air bags
G
Observe Safety notes, see page 37. Front side impact air bags
: and rear side
impact air bags ; are designed to provide
increased protection for the thorax but not
the head, neck and arms.
The side impact air bags are deployed
R on the impacted side of the vehicle
R in instances with a high rate of lateral
vehicle deceleration or acceleration
R regardless of whether the seat belts on the
impacted side of the vehicle are in use
R independently of the front air bags
R independently of the ETDs
The side impact air bags are not deployed in
side impacts which do not exceed the
system’s deployment threshold.
The side impact air bags will not deploy in the
event of a rollover unless the vehicle’s rate of
lateral deceleration or acceleration exceeds
the preset deployment threshold for the side
impact air bags. G
Warning!
Only use seat covers which have been tested
and approved by Mercedes-Benz for your
vehicle model. Using other seat covers may
interfere with or prevent the deployment of
the front side impact air bags. Contact an authorized Mercedes-Benz Center for
availability.
Window curtain air bags G
Observe Safety notes, see page 37. Window curtain air bags
: are designed to
provide increased protection for the head but
not the chest or arms.
Window curtain air bags : are deployed
R on the impacted side of the vehicle
R in instances with a high rate of lateral
vehicle deceleration or acceleration
R independently of the front air bags
R regardless of whether the front passenger
seat is occupied
R in certain vehicle rollovers, if the system
determines that air bag deployment can
offer additional protection to that provided
by the seat belt
Window curtain air bags : are not deployed
in impacts which do not exceed the system’s
deployment threshold.
Window curtain air bags : deploy in the area
indicated by the arrows. Occupant Classification System
The Occupant Classification System (OCS)
activates or deactivates the front passenger
front air bag automatically. The respective
status is based on the classified occupant Occupant safety
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