clock MERCEDES-BENZ CL CLASS 2010 User Guide

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
Engine compartmentOperation
216_AKB; 3; 90, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 372

X
Take the collapsible wheel chock from the
vehicle tool kit (Y page 412). X
Setting up: Tilt both plates upward :.
X Fold the lower plate outward ;.
X Guide the tabs of the lower plate all the way
into the openings of base plate =.
For information on where to place wheel
chocks when changing a wheel, see “Lifting
the vehicle” ( Y page 466).
Jack G
Warning!
Only use the jack supplied with your vehicle
to lift the vehicle briefly for wheel changes. If
you use the jack for any other purpose, you or
others could be injured, as the jack is
designed only for the purpose of changing a
wheel.
When using the jack, observe the safety notes
in the “Mounting the spare wheel” section and
the notes on the jack.
X Take the jack from the vehicle tool kit
(Y page 412). Storage position
X
Turn the crank handle in the direction of
arrow as far as it will go. Operational position
X
Turn the crank handle clockwise.
Before placing the jack back into the vehicle
tool kit:
X Fully collapse the jack.
X Fold in the crank handle (storage position). Spare wheel
G
Observe Safety notes, see page 465.
The spare wheel is located in the space
underneath the trunk floor.
X Removing: Open the trunk (Y page 257).
X Lift the trunk floor using the floor handle.
X Engage the trunk floor handle on the upper
trunk lip.
! To prevent damage, always disengage the
floor handle from the upper trunk lip and Where will I find ...?
413Practical hints
216_AKB; 3; 90, en-US
d2ureepe, Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 413 Z

lower the trunk floor before closing the
trunk.
X
Remove spare wheel mounting = by
turning it counterclockwise.
i Vehicle tool kit box ; can only be
removed together with spare wheel
mounting =.
After removing spare wheel mounting =,
you can disengage vehicle tool kit box ;
from spare wheel mounting =.
X Remove spare wheel :.
The spare wheel bolts are located in a
container on the spare wheel rim.
X Take off the spare wheel bolts.
For information on mounting the spare wheel,
see “Flat tire” ( Y page 465).
Storing the spare wheel after use X
Place spare wheel : into the spare wheel
well (Y page 414).
X Secure spare wheel : by turning spare
wheel mounting = clockwise
(Y page 414). Vehicle status messages in the
multifunction display
Notes
Warning and malfunction messages appear in
the multifunction display located in the
instrument cluster. Certain warning and malfunction messages
are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in this
Operator’s Manual.
High-priority messages are shown in red in
the multifunction display. Messages of lower
priority are shown in yellow or white.
Certain messages of high priority cannot be
cleared from the multifunction display using
a or % on the multifunction steering
wheel (Y page 202).
Other messages of high priority and
messages of less immediate priority can be
cleared from the multifunction display using
a or %. They are then stored in the
vehicle status message memory
(Y page 214). Remember that clearing a
message will only make the message
disappear. Clearing a message will not
correct the condition that caused the
message to appear.
G
Warning!
All categories of messages contain important
information which should be taken note of
and, where a malfunction is indicated,
addressed as soon as possible at an
authorized Mercedes-Benz Center.
Failure to repair the condition noted may
cause damage not covered by the Mercedes-
Benz Limited Warranty, or result in property
damage or personal injury. G
Warning!
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicator lamps 414
Vehicle status messages in the multifunction displayPractical hints
216_AKB; 3; 90, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 414

Unlocking the driver’s door
X
Insert mechanical key ; into the driver’s
door lock.
X Turn mechanical key ; counterclockwise
to position 1.
X Pull the door handle past the resistance
point until the locking knob moves up.
The driver’s door is unlocked.
X Pull the door handle once more to open the
driver’s door.
X Turn mechanical key ; back and remove
it from the driver’s door lock.
Unlocking the trunk A minimum height clearance of 5.9 ft (1.8 m)
is required to open the trunk lid.
X
Insert mechanical key ; into the trunk lid
lock.
X Turn mechanical key ; counterclockwise
to position 1. !
When you open the trunk, the trunk lid
swings open upwards. Always make sure
there is sufficient overhead clearance.
X Turn mechanical key ; back and remove
it from the trunk lid lock. Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
X Open the passenger door.
X Close the driver’s door and the trunk.
i If you cannot close the trunk with the
remote trunk opening/closing switch,
lower the trunk lid manually and close it
with hands placed flat on the trunk lid until
it is engaged in its lock.
X Press down the locking knob of the driver’s
door.
X Press down the locking knob of the
passenger door.
! To prevent inadvertent lockout, make
sure to have the SmartKey with you before
proceeding with the next step. The next
step will lock the vehicle.
X Exit the vehicle.
X Lock the trunk with the mechanical key
(Y page 261).
X Close the passenger door.
i This procedure does not arm the anti-
theft alarm system, nor does it lock the fuel
filler flap. Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an authorized
Mercedes-Benz Center. Replacing SmartKey batteries
461Practical hints
216_AKB; 3; 90, en-US
d2ureepe, Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 461 Z

Always try lifting the vehicle using the jack on
a level surface. However, should
circumstances require you to do so on a hill:
X
Place wheel chocks or other sizeable
objects on the downhill side in front of both
wheels on the side opposite to the side on
which the wheel is to be changed. G
Warning!
Only jack up the vehicle on level ground or on
slight inclines/declines. Otherwise, the
vehicle could fall off the jack and injure you or
others. X
On the wheel to be changed, loosen but do
not yet remove the wheel bolts
(approximately one full turn with wheel
wrench :).
The jack take-up brackets are located directly
behind the front wheel housings and in front
of the rear wheel housings. G
Warning!
The jack is designed exclusively for jacking up
the vehicle at the jack take-up brackets. Make
sure the jack arm is fully seated in the jack
take-up bracket.
If you do not position the jack correctly in the
jack take-up bracket, the vehicle can fall off
the jack and seriously or fatally injure you or
others.
! Do not position the jack on the body of
the vehicle, as this may cause damage to
the vehicle. X
Place jack = on firm ground.
X Position jack = under take-up
bracket ; so that it is always vertical as
seen from the side, even if the vehicle is
parked on an incline. X
Turn crank ? clockwise until jack = is
fully seated in take-up bracket ; and the
jack base evenly meets the ground.
X Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the ground.
Removing the wheel Flat tire
467Practical hints
216_AKB; 3; 90, en-US
d2ureepe, Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 467 Z

Lowering the vehicle
X
Lower the vehicle by turning the crank
counterclockwise until the vehicle is
resting fully on its own weight.
X Remove the jack. X
Tighten the five wheel bolts evenly,
following the diagonal sequence illustrated
(: to A), until all bolts are tight. Observe
a tightening torque of 110 lb-ft (150 Nm). G
Warning!
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).
X Fully collapse the jack, with handle folded
in (storage position), see ( Y page 413).
X Store the jack and the other vehicle tools
in the designated storage space.
For information on storing the spare wheel
after it has been replaced by a regular road
wheel, see ( Y page 413).
i Do not restart the tire inflation pressure
monitor until a full size wheel/tire with
functioning sensor has been placed back
into service on the vehicle. Battery
Safety notes
A battery should always be sufficiently
charged in order to achieve its rated service life. Refer to Maintenance Booklet for battery
maintenance intervals.
If you use your vehicle mostly for short-
distance trips, you will need to have the
battery charge checked more frequently.
When replacing a battery, always use a
battery approved by Mercedes-Benz.
If you do not intend to operate your vehicle
for an extended period of time, contact an
authorized Mercedes-Benz Center about
steps you need to observe.
G
Warning!
Observe all safety instructions and
precautions when handling automotive
batteries. Risk of explosion.
Fire, open flames and
smoking are prohibited
when handling batteries.
Avoid creating sparks.
Battery acid is caustic. Do
not allow it to come into
contact with skin, eyes or
clothing.
Wear suitable protective
clothing, especially gloves,
apron and faceguard.
Wear eye protection.
Rinse any acid spills
immediately with clear
water. Contact a physician
if necessary.
Keep children away.
Follow the instructions in
this Operator’s Manual.
A battery contains materials that can harm
the environment if disposed of improperly. A
large 12 V storage battery contains lead. Battery
469Practical hints
216_AKB; 3; 90, en-US
d2ureepe, Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 469 Z

For more information see “Battery”
(Y page 469) or “Jump starting”
(Y page 471).
Installing towing eye bolt
Depending on whether you are towing a
vehicle or you are being towed, the towing eye
bolt can be screwed into threaded holes
which are located behind covers on each
bumper.
The towing eye bolt is supplied with the
vehicle tool kit, located underneath the trunk
floor ( Y page 412).
X Take the vehicle tool kit out of the trunk.
Removing cover in front bumper X
Press mark on cover : as indicated by the
arrow.
X Lift cover : off to reveal the threaded hole
for the towing eye bolt.
Removing cover in rear bumper G
Warning!
In order to avoid possible serious burns or
injury, use extreme caution when removing
the rear cover, because the rear exhaust pipe
is extremely hot. X
Press mark on cover : as indicated by the
arrow.
X Lift cover : off to reveal the threaded hole
for the towing eye bolt.
Fixing towing eye bolt Example illustration front bumper
X
Take the towing eye bolt and, if so
equipped, the wheel wrench from the
vehicle tool kit (Y page 412).
X Screw towing eye bolt ; clockwise into
threaded hole to its stop.
X Insert wheel wrench into towing eye and
tighten towing eye bolt ; by turning it
clockwise.
or
X If your vehicle is not equipped with a wheel
wrench, use a suitable object to turn the
towing eye bolt. 474
Towing the vehiclePractical hints
216_AKB; 3; 90, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 474

Removing towing eye bolt
X
Loosen towing eye bolt ; by turning it
counterclockwise.
X Unscrew towing eye bolt ;.
X Reinstalling cover: Fit cover :
(Y page 474) and snap it into place.
X Store the towing eye bolt ; and wheel
wrench back into the vehicle tool kit. Towing with all wheels on the ground
G
Warning!
If circumstances require towing the vehicle
with all
wheels on the ground, always tow with
a tow bar if:
R the engine will not run
R there is a malfunction in the brake system
R there is a malfunction in the power supply
or in the vehicle’s electrical system
This is necessary to adequately control the
towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey is in
starter switch position 2.G
Warning!
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
X Make sure the ignition is switched on.
X With the vehicle at a standstill, depress the
brake pedal and keep it pressed.
X Shift the automatic transmission into
neutral position N.
X Release the brake pedal. X
If engaged, release the electronic parking
brake.
X Switch on the hazard warning flasher
(Y page 278).
! Keep in mind that it is important to have
the ignition switched on. Removing the
SmartKey from the starter switch or
opening a front door with the ignition
switched off will automatically shift the
automatic transmission into park position
P.
! The vehicle may be towed only for
distances up to 30 miles (50 km) and at a
speed not to exceed 30 mph (50 km/h).
i While being towed with the hazard
warning flasher

in use, use the combination
switch in the usual manner to signal turns.
Only the selected turn signal will operate.
Upon canceling the turn signal, the hazard
warning flasher will operate again. Towing with front axle raised
! The vehicle may be towed only for
distances up to 30 miles (50 km) and at a
speed not to exceed 30 mph (50 km/h).
! Vehicles with 4MATIC: Do not tow with
one axle

raised. Doing so could damage the
transfer case, which is not covered by the
Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground.
Observe instructions for towing the vehicle
with all wheels on the ground.
X Switch off the automatic central locking
(Y page 193).
X Switch on the hazard warning flasher
(Y page 278).
X Make sure the automatic transmission
remains in neutral position N. Observe
instructions, see “Remaining in neutral
position N” (Y page 292). Towing the vehicle
475
Practical hints
216_AKB; 3; 90, en-US
d2ureepe, Version: 2.11.8.1 2009-05-15T11:47:50+02:00 - Seite 475 Z