2010 MERCEDES-BENZ CL CLASS engine

Treadwear indicators .............
386, 395
Vehicle maximum load on .............. 395
Wear pattern
.................................. 388
Winter tires ............................ 395, 486
Tire speed rating .......................390, 395
Top tether see Children in the vehicle
Total load limit ................................... 395
Towing
Towing eye bolt .............................. 474
Vehicle ........................................... 473
Towing eye bolt ................................. 474
Traction ...................................... 387, 395
Traffic messages ............................... 125
Transfer case ..................................... 299
Transmission see Automatic transmission
Transmission fluid level .................... 371
Transmission gear selector lever see Gear selector lever
Transmission positions ....................294
Traveling abroad ............................... 401
Tread (tires) ....................................... 395
Tread depth (tires) ....................386, 395
Treadwear .......................................... 387
Treadwear indicators (tires) .... 386, 395
Trip menu ........................................... 204
Trunk
Closing ........................................... 258
Messages in the multifunction
display ........................................... 439
Opening ......................................... 258
Opening/closing system ............... 259
Opening-height restriction ............. 193
Trunk lid emergency release .......... 260
Unlocking manually .......................461
Valet locking .................................. 261
Turning off the engine ......................290
Turn signals ....................................... 277
Cleaning lenses ............................. 406
Indicator lamps ................................ 29
Messages in the multifunction
display ........................................... 449 U
Uniform Tire Quality Grading
Standards .................................. 387, 395
Units Selecting speedometer display
mode ............................................. 215
Unleaded gasoline, premium ........... 493
Unlocking the vehicle
KEYLESS-GO .................................. 253
Manually
........................................ 460
SmartKey ....................................... 252
Upholstery, cleaning .........................409
USB devices (media interface) .........183
USB socket ........................................... 72
Useful features .................................. 350 V
Valet locking ...................................... 261
Vehicle
Battery ........................................... 469
Care ............................................... 403
Control system .............................. 201
Identification Number (VIN) ........... 480
Individual settings ..........................214
Locking/unlocking ........................ 252
Lowering (wheel change)

............... 469
Modifications and alterations,
Operating safety .............................. 22
Towing ........................................... 473
Unlocking/locking manually .......... 460
Vehicle dimensions
see Vehicle specification
Vehicle Identification Number
(VIN) ................................................... 480
Vehicle jack see Jack
Vehicle level control
see AIRMATIC
Vehicle lighting .................................. 274
Vehicle loading
Instructions .................................... 347
Load limit ....................................... 382
Terminology ................................... 393
Vehicle maximum load on the tire ... 395 18
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contacting you in a timely manner should the
need arise.
If you sell your Mercedes, please leave all
literature
with
the vehicle to make it available
to the next operator.
If you bought this vehicle used, be sure to
send in the “Notice of Purchase of Used Car”
found in the Service and Warranty
Information Booklet, or call the Mercedes-
Benz Customer Assistance Center (in the
USA) at 1-800-FOR-MERCedes, or Customer
Service (in Canada) at 1-800-387-0100. Operating your vehicle outside the
USA or Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R Service facilities

or replacement parts may
not be readily available.
R Unleaded gasoline for vehicles with
catalytic converters may not be available;
the use of leaded fuels will damage the
catalysts.
R Gasoline may have a considerably lower
octane rating, and improper fuel can cause
engine damage.
Certain Mercedes-Benz models are available
for delivery in Europe under our European
Delivery Program. For details, consult an
authorized Mercedes-Benz Center or write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9 Operating safety
G
Warning!
Work improperly carried out on electronic
components and associated software could
cause them

to cease functioning. Because the
vehicle’s electronic components are
interconnected, any modifications made may
produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
Contact an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore never
turn off the engine while driving. G
Warning!
Heavy blows against the vehicle underbody or
tires/wheels may cause serious damage and
impair the operating safety of your vehicle.
Such blows can be caused, for example, by
running over an obstacle, road debris or a
pothole. If you feel a sudden significant
vibration or ride disturbance, or you suspect
that damage to your vehicle as occurred:
R turn on your hazard warning flashers
R slow down carefully
R drive with

caution to an area which is a safe
distance from the road
Inspect the vehicle underbody and tires/
wheels for possible damage. If the vehicle
appears unsafe, have it towed to the nearest
authorized Mercedes-Benz Center or other
qualified maintenance or repair facility for
further inspection or repairs. 22
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Instrument cluster
Function Page
:
Coolant temperature gauge 300
;
Fuel gauge with:
Fuel tank reserve warning
lamp
457
K High-beam headlamp
indicator lamp
277
! Antilock Brake
System (ABS) indicator
lamp
451
6 Supplemental
Restraint System (SRS)
indicator lamp
455
=
Parktronic/Park Assist
warning indicator for left
front area
323,
326 ?
Multifunction display with:
Speedometer
F Electronic parking
brake warning or indicator
lamps, USA only
453 Function Page
! Electronic parking
brake warning or indicator
lamps, Canada only
453
$ Brake warning lamp,
USA only
453,
451 J Brake warning lamp,
Canada only
453,
451 7 Seat belt telltale
454
h Combination low tire
pressure/TPMS
malfunction telltale, USA
only
377,
458 h Low tire pressure
telltale, Canada only
377,
458 # Left turn signal
indicator lamp
! Right turn signal
indicator lamp
÷ ESC warning lamp
435
· Distance warning
lamp
1 457
1
Vehicles without DISTRONIC PLUS: Warning lamp without function. It illuminates when the ignition is on. It
should go out when the engine is running. Instrument cluster
29At a glance
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Function Page
å ESC OFF warning
lamp
435
j Parking space indicator
lamp
327
A
Parktronic/Park Assist
warning indicator for right
front area
323,
326 B
Transmission position/
range indicator
295
C
Tachometer with:
; Engine malfunction
indicator lamp
457 Function Page
D
Program mode indicator 296
E
Main menus for instrument
cluster control system
203
F
Outside temperature 301
G
Display with:
Additional speedometer 215
Ä PRE-SAFE
®
Brake
indicator lamp 213
or
HOLD function indicator
lamp
31630
Instrument clusterAt a glance
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Center console
Function Page
:
Thumbwheel for air volume
control for left center air
vent
342
;
Thumbwheel for air volume
control for right center air
vent
342
=
Air distribution and air
volume, driver’s side
(automatic mode)
341
?
Temperature control,
driver’s side
341
A
Manual fan speed
adjustment, driver’s side
342
B
Front defroster 343
C
Air recirculation 343
D
Climate control on/off 340
E
Residual engine heat and
ventilation (REST)
344
F
Rear window defroster
344 Function Page
G
Manual fan speed
adjustment, passenger side
342
H
Temperature control,
passenger side
341
I
Air distribution and air
volume, passenger side
(automatic mode)
341
J
Alarm system indicator
lamp
65
K
Cup holder 350
L
Ashtray 352
Cigarette lighter 353
M
CD/DVD changer 165
SD card slot 166Center console
33At a glance
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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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The system does not deactivate
R
the front passenger side impact air bag
R the window curtain air bag
R the Emergency Tensioning Devices (ETDs)
To be
classified correctly, the front passenger
must sit
R with the seat belt properly fastened
R in a position that is as upright as possible
with the back against the seat backrest
R with the feet on the floor
If the occupant’s weight is transferred to
another object in the vehicle (e.g. by leaning
on armrests), the OCS may not be able to
properly approximate the occupant’s weight
category.
If your seat, including the trim cover and
cushion, needs to be serviced in any way, take
the vehicle to an authorized Mercedes-Benz
Center.
Only seat accessories approved by
Mercedes-Benz may be used.
Both the driver and the front passenger
should always use the 42
indicator lamp as an indication of whether or
not the front passenger is properly
positioned. G
Warning!
If the 42 indicator lamp
illuminates when an adult or someone larger
than a small 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 weighting
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 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 lamp
will 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. 42
Occupant safety
Safety and security
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To release the seat belt with seat belt release
button
?, see ( Y page 48).
Releasing the seat belts X
Press seat belt release button ?
(Y page 47).
Allow the retractor to completely rewind
the seat belt by guiding latch plate ;
(Y page 47).
! Make sure the seat belt retracts
completely. Otherwise
the seat belt and/or
latch plate could get caught or pinched in
the door or in the seat mechanism. This can
damage the seat belt and impair its
effectiveness, and/or cause damage to the
door and/or door trim panel. Such damage
is not covered by the Mercedes-Benz
Limited Warranty.
Damaged seat belts must be replaced.
Contact an authorized Mercedes-Benz
Center.
Enhanced seat belt reminder system When the engine is started, the seat belt
telltale
7 will always illuminate for
6 seconds

to remind you and your passengers
to fasten your seat belts.
If the driver’s seat belt is not fastened when
the engine is started, an additional warning
chime will sound. The warning chime goes out
after approximately 6 seconds or once the
driver’s seat belt is fastened.
If after these 6 seconds the driver’s or the
front passenger’s seat belt (with the front
passenger seat occupied) is not fastened with
both doors closed,
R the seat belt telltale 7 remains
illuminated for as long as either the driver’s
or front passenger’s seat belt is not
fastened.
R and if the vehicle speed once exceeds
15 mph (25 km/h), the seat belt telltale
7 starts flashing and a warning chime
sounds with increasing intensity for a maximum of 60 seconds or until the
driver’s
and

front passenger’s seat belt are
fastened.
If you and/or your passenger release the
seat belt during driving, the seat belt
telltale 7 starts flashing and the
warning chime sounds as described before.
If the driver’s or the front passenger’s seat
belt remains unfastened after 60 seconds,
the warning chime stops sounding, the seat
belt telltale 7 stops flashing but
continues to be illuminated.
After a vehicle standstill, the warning chime
is reactivated and the seat belt telltale
7 is flashing again if the vehicle speed
once exceeds 15 mph (25 km/h).
The seat belt telltale 7 will only go out if
both the driver’s and the front passenger’s
seat belt (with the front passenger seat
occupied) are fastened, or the vehicle is
standing still and a door is opened.
For more information, see “Practical hints”
(Y page 454).
Emergency Tensioning Device (ETD),
seat belt force limiter The seat belts are equipped with ETDs and
seat belt force limiters.
The ETDs are designed to activate in the
following cases:
R
in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
R in side impacts exceeding the system’s
preset deployment threshold on the far
side of the impact
R in certain vehicle rollovers
R if the

restraint systems are operational and
functioning correctly, see “SRS indicator
lamp” (Y page 36)
The ETDs for the front seats will only activate
if the front seat belts are fastened (latch plate
properly inserted into buckle). 48
Occupant safety
Safety and security
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