2010 MERCEDES-BENZ CL CLASS check engine

!
Excess oil must be siphoned or drained
off. It could cause damage to the engine
and emission control system not covered
by the Mercedes-Benz Limited Warranty.
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 444).
Adding engine oil !
Only use approved engine oils and oil
filters required for vehicles with
Maintenance System. For a listing of
approved engine oils and oil filters, contact
an authorized Mercedes-Benz Center or
visit www.mbusa.com (USA only).
The following will result in engine or
emission control system damage not
covered by the Mercedes-Benz Limited
Warranty:
R Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System.
R Changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System.
R Using any oil additives. Example illustration: CL 550 4MATIC Example illustration: CL 63 AMG
X
Unscrew filler cap : from filler neck.
X Add engine oil as required. Be careful not
to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
! Excess oil must be siphoned or drained
off. It could cause damage to the engine
and emission control system not covered
by the Mercedes-Benz Limited Warranty.
X Screw filler cap : back on filler neck.
For more information on engine oil, see the
“Technical data” section ( Y page 490) and
(Y page 492). Transmission fluid level
The transmission fluid level does not need to
be checked. If you notice transmission fluid
loss or gearshifting malfunctions, have an
authorized Mercedes-Benz Center check the
transmission. Active Body Control (ABC) fluid level
Regular fluid level check is not required. If you
notice fluid leaks or malfunction messages in
the multifunction display, have an authorized
Mercedes-Benz Center check the ABC
system. Engine compartment
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Coolant level
The engine coolant is a mixture of water and
anticorrosion/antifreeze.
When checking the coolant level, the vehicle
must be parked on level ground, and the
coolant temperature must be below 158‡
(70†). G
Warning!
In order to avoid any potentially serious burns:
R Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature gauge indicates
that the coolant is overheated.
R Do not remove the cap on the coolant
expansion tank if the coolant temperature
is above 158‡ (70†). Allow the engine to
cool down before removing the cap. The
coolant expansion tank contains hot fluid
and is under pressure.
R Using a rag, slowly open the cap
approximately 1
/ 2 turn counterclockwise
to relieve excess pressure. If opened
immediately, scalding hot fluid and steam
will be blown out under pressure.
R Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. Example illustration: CL 550 4MATIC X
Using a rag, slowly open cap :
approximately 1
/ 2 turn counterclockwise
to relieve excess pressure.
X Continue turning cap : counterclockwise
and remove it.
The coolant level is correct if the level
R for cold coolant: reaches marking bar
= in coolant expansion tank ;
R for warm coolant: is approximately 0.6 in
(1.5 cm) higher
X Add coolant as required.
X Screw cap : back on and tighten it.
For more information on coolant, see the
“Technical data” section ( Y page 491) and
(Y page 494). Washer system and headlamp
cleaning system
G
Warning!
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
! Always use washer solvent/antifreeze
where temperatures may fall below
freezing point. Failure to do so could result
in damage to the washer system/fluid
reservoir.
! Only use washer fluid which is suitable for
plastic lenses. Improper washer fluid can
damage the plastic lenses of the
headlamps.
! Do not use distilled or deionized water in
the washer fluid reservoir. Otherwise, the
washer fluid level sensor could be
damaged.
Fluid for the washer system and the headlamp
cleaning system is supplied from the washer
fluid reservoir. 372
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Always use winter tires at temperatures
below 45‡ (7†) and whenever wintry road
conditions prevail. Not all M+S rated tires
provide special winter performance. Make
sure the tires you use show the mountain/
snowflakeimarking on the tire sidewall.
These tires meet specific snow traction
performance requirements of the Rubber
Manufacturers Association (RMA) and the
Rubber Association of Canada (RAC) and
have been designed specifically for use in
snow conditions. Use of winter tires is the
only way to achieve the maximum
effectiveness of your vehicle’s driving safety
systems such as the ABS and the ESC in
winter operation.
For safe handling, make sure all mounted
winter tires are of the same make and have
the same tread design.
For information on winter tires for your
vehicle model, see the “Technical data”
section (
Y page 486).
Always observe
the speed rating of the winter
tires installed on your vehicle. Snow chains
! When driving with snow chains, always
select the raised level of the vehicle level
control. Other settings may result in
damage to your vehicle.
! Some tire sizes do not leave adequate
clearance for snow chains. To help avoid
serious damage to your vehicle or tires,
make sure the use of snow chains is
permissible as specified in the “Technical
data” section of this Operator’s Manual.
Snow chains should only be driven on snow-
covered roads at speeds not to exceed
30 mph (50 km/h) . Remove chains as soon
as possible when driving on roads without
snow. Observe the following guidelines when using
snow chains:
R
Use of
snow chains is not permissible with
all wheel/tire combinations ( Y page 486).
R Use snow chains in pairs and on rear
wheels only. Follow the manufacturer’s
mounting instructions.
! If snow chains are mounted to the front
wheels, they may scrape against the body
or axle components. The tires or the vehicle
could be damaged as a result.
R Only use snow chains that are approved by
Mercedes-Benz. Any authorized Mercedes-
Benz Center will be glad to advise you on
this subject.
R Use of snow chains may be prohibited
depending on location. Always check local
and state laws before installing snow
chains.
R Do not use snow chains on the spare wheel.
i When driving with snow chains, you may
wish to switch off the ESC ( Y page 212)
before setting the vehicle in motion. This
will improve the vehicle’s traction. Winter driving instructions
G
Warning!
If the vehicle becomes stuck in snow, make
sure snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon monoxide
(CO) gases may enter vehicle interior
resulting in unconsciousness and death.
To assure

sufficient fresh air ventilation, open
a window slightly on the side of the vehicle
not facing the wind. G
Warning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose. 396
Winter driving
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removed without putting other road users
at risk
R maintain a greater distance to the vehicle
ahead and drive with particular care
R carefully apply the brakes at the end of a
trip and immediately after commencing a
new trip,
so that salt residues are removed
from the brake disc
Brake service !
The brake fluid level in the reservoir may
be too

low if the red brake warning lamp in
the instrument cluster comes on while the
engine is running and an acoustic warning
sounds. Observe additional messages in
the multifunction display that may appear.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the
reservoir.
Have the brake system inspected
immediately. Contact an authorized
Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and use brake fluid
recommended by Mercedes-Benz. G
Warning!
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can

be degraded to an extent that safe
braking is substantially impaired. This could
result in an accident.
! Vehicles with 4MATIC:
Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system or the transfer case which is not covered by the Mercedes-Benz Limited
Warranty.
! Vehicles with 4MATIC:
Because the ESC operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position 0 or
1 or KEYLESS-GO start/stop button in
position 0
or 1

) when the electronic parking
brake is being tested on a brake test
dynamometer.
Active braking action through the ESC may
otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
! Vehicles without 4MATIC:
Because the ESC operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position 0 or
1 or KEYLESS-GO start/stop button in
position 0 or 1) when the electronic parking
brake is being tested on a brake test
dynamometer or when the vehicle is being
towed with one axle raised.
Active braking action through the ESC may
otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
If your brake system is only subjected to
moderate loads, you should occasionally test
the effectiveness of the brakes by applying
above-normal braking pressure at higher
speeds. This will also enhance the grip of the
brake pads. G
Warning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Refer to the description of the Brake Assist
System (BAS) ( Y page 57) or BAS PLUS
(Y page 57). Driving instructions
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High-performance brake system
The high-performance brake system is only
available on CL 63 AMG and CL 65 AMG.
G
Warning!
New vehicle brake pads and discs, and
replacement brake pads and discs may take
several hundred miles of driving until they
provide optimum
braking efficiency. Until that
time, you may need to use increased brake
pedal pressure while braking. Please be aware
of this and adjust your driving and braking
accordingly during this break-in period.
Excessive high-demand braking will cause
correspondingly high brake wear. Please be
attentive to the brake warning lamp in the
instrument cluster and brake condition
messages in the multifunction display.
Especially for high performance driving, it is
important to maintain and have the brake
system checked regularly.
The high-performance brake system is
designed to operate under the extremely high
operating demands required to
accommodate the performance capabilities
of the vehicle.
The brakes may produce a squeaking-type
noise depending on the
R vehicle speed
R brake force applied
R ambient conditions, e.g. temperature and
humidity
As with any brake system, the wear of
individual brake system components such as
brake pads or disks strongly depends on your
driving style and the conditions under which
you operate the vehicle. Thus, a driving style
calling for high-demand braking will cause
your vehicle’s brakes to wear more quickly. Driving off
Warm up the engine smoothly. Do not place
full load on the engine until the operating
temperature has been reached.
! When driving

off on a slippery surface, do
not allow a drive wheel to spin for an
extended period with the ESC switched off.
Doing so may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
! Simultaneously depressing the
accelerator pedal and applying the brakes
reduces engine performance and causes
premature brake and drivetrain wear which
is not covered by the Mercedes-Benz
Limited Warranty. Hydroplaning
Depending on

the depth of the water layer on
the road, hydroplaning may occur, even at low
speeds and with new tires. In heavy rain or
when conditions indicate possible
hydroplaning:
X Reduce vehicle speed.
X Avoid track grooves in the road.
X Apply brakes cautiously. Standing water
! Do not drive through flooded areas.
Before driving

through water, determine its
depth.
If you must drive through standing water,
drive slowly to prevent water from entering
the passenger compartment or the engine
compartment. Water in these areas could
cause damage to electrical components or
wiring of the engine or transmission, or
could result in water being ingested by the
engine through the air intake causing
severe internal engine damage. Any such
damage is not covered by the Mercedes-
Benz Limited Warranty. 400
Driving instructions
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X
Switch on the ignition.
The standard
display of the control system
appears ( Y page 204).
X Press button = or ; on the
multifunction steering wheel to select the
Service menu.
X Press button : or 9 to select
ASSYST PLUS.
X Press button a on the multifunction
steering wheel to confirm.
The maintenance service indicator display
with the maintenance service deadline
appears in the multifunction display.
i If the

battery was disconnected, the days
of disconnection will not be included in the
count shown by the maintenance service
indicator. To arrive at the true maintenance
service deadline, you will need to subtract
these days from the days shown in the
maintenance service indicator message or
maintenance service indicator display. Resetting the maintenance service
indicator
In the

event that the maintenance service on
your vehicle is not carried out at an authorized
Mercedes-Benz Center, you can have the
maintenance service indicator reset.
The automotive maintenance facility carrying
out the maintenance service will find the
information for resetting the maintenance
service indicator in the maintenance-relevant
literature for your vehicle.
Such literature is available at any authorized
Mercedes-Benz Center or directly from
Mercedes-Benz.
! If the maintenance service indicator was
reset inadvertently, have an authorized
Mercedes-Benz Center correct it.
Only reset the maintenance service
indicator if the proper maintenance service
has been performed. Not following the
proper maintenance service as described
in the Maintenance Booklet will result in engine damage and/or other vehicle
damage
not

covered by the Mercedes-Benz
Limited Warranty. Vehicle care
Cleaning and care of the vehicle
Notes Regular and proper care will help to maintain
the value of your vehicle.
G
Warning!
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the
particular container. Always open your
vehicle’s doors

or windows when cleaning the
inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.
Always lock away cleaning products and keep
them out of reach of children.
! When cleaning the vehicle, do not use
scouring agents. Never apply strong force
and only use a soft, wet cloth or sponge.
Otherwise you may scratch or damage the
surface to be cleaned.
While in operation, even while parked, your
vehicle is subjected to varying external
influences which, if gone unchecked, can
attack the paintwork as well as the vehicle
underbody and cause lasting damage.
Such damage is caused not only by extreme
and varying climatic conditions, but also by:
R Air pollution
R Road salt
R Tar
R Gravel and stone chipping Vehicle care
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Display messages
Possible causes/consequences and
X SolutionsParking
Guidance Canceled The Advanced Parking Guidance has been canceled because:
R
the vehicle is sliding
R the bumper became dirty in the area of the sensors
R there has been a malfunction
X Use the Advanced Parking Guidance again later.
If the parking space symbol is not shown in the multifunction
display at a speed below 10 mph (16 km/h):
X Clean the bumpers
(Y page 406).
or
X Restart the engine.
or
X Contact an authorized Mercedes-Benz Center. Parking
Guidance Finished Advanced Parking Guidance: The vehicle is in the end
position.
The display message disappears automatically.
Radar
Sensors Deactivate
d See
Oper.
Manual You have attempted to activate the DISTRONIC PLUS, the
Park Assist or the PRE-SAFE
®
Brake even though you have
switched off the radar sensors on the vehicle.
X Check if switching on the radar sensors is permitted
(Y page 216).
X Switch on the radar sensors using the instrument cluster
control system. Vehicle
Display messages
Possible causes/consequences and
X SolutionsApply
Brake to Shift
from 'P' You have attempted to shift the automatic transmission into
drive
position D

, reverse gear R or neutral position N without
depressing the brake pedal.
X Depress the brake pedal. Door Open Vehicle
Not in
Park You have opened the driver’s door and the automatic
transmission is still in drive position
D, reverse gear R or
neutral position N.
X Before you leave the vehicle, make sure the automatic
transmission is

in park position P and the electronic parking
brake is engaged. 424
Vehicle status messages in the multifunction display
Practical hints
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Display messages
Possible causes/consequences and
X SolutionsF
(USA only)
!
(Canada
only) Parking
Brake
Inoperativ
e When you engage or release the electronic parking brake, the
red indicator lamp for the electronic parking brake flashes
and goes out after approx. 10 seconds. The yellow warning
lamp for the electronic parking brake comes on.
The electronic parking brake is malfunctioning.
X
Switch ignition off and back on again, and engage or release
electronic parking brake.
If the electronic parking brake cannot be engaged:
X Shift the automatic transmission to park position P
(Y page 291).
X Protect vehicle from rolling away while parked by using a
chock from the vehicle tool kit (Y
page 412).
X Contact an authorized Mercedes-Benz Center as soon as
possible. $
(USA only)
J
(Canada
only) Service
See Oper.
Manual CL 600 and CL 65 AMG only:
The brake system sensors are malfunctioning. The brake
system continues to function normally with full brake force
boost.
X
Continue driving with added caution.
X Have the system checked at an authorized Mercedes-Benz
Center as soon as possible. $
(USA only)
J
(Canada
only) Check
Brake
Fluid
Level There is insufficient brake fluid in the reservoir.
Risk of accident!
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Engage the parking brake.
X Do not drive any further.
X Contact an authorized Mercedes-Benz Center or call
Roadside Assistance.
Do not add brake fluid! This will not solve the problem. G
Warning!
Driving with the message Check
Brake
Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned.
! If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum mark
or below, have the brake system checked for brake pad thickness and leaks. 434
Vehicle status messages in the multifunction display
Practical hints
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