keyless MERCEDES-BENZ CLS 2010 Workshop Manual

SmartKey with KEYLESS-GO
X
Insert mechanical key : into opening.
X Press mechanical key : in direction of
arrow.
Battery compartment ; is unlatched.
X Pull battery compartment ; out of the
SmartKey housing. X
Pull out batteries =.
X Insert new batteries = under contact
springs ? with the positive terminal (+)
side facing up.
X Return battery compartment ; into
SmartKey housing until it locks into place.
X Slide mechanical key : back into the
SmartKey.
X Check the operation of the SmartKey as
well as the KEYLESS-GO function. Replacing bulbs
Safety notes
Safe vehicle operation depends on proper
exterior lighting and signaling to a large
degree.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. Contact an
authorized Mercedes-Benz Center for
headlamp adjustment. G
Warning!
Bulbs and bulb sockets can be very hot. Allow
the lamp to cool down before changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you
R touch or move it when hot
R drop the bulb
R scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician. G
Warning!
The bulbs in the tail lamps cannot be replaced
individually. The tail lamp bulbs are under
pressure and could explode during an attempt
to replace them.
If the tail lamps are malfunctioning, have them
replaced at an authorized Mercedes-Benz
Center.
i Since replacing bulbs is a technically
highly demanding process, we recommend
to have them replaced at an authorized
Mercedes-Benz Center.
i If the headlamps or front fog lamps are
fogged up on the inside as a result of high 266
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Replacing wiper blades
Safety notes
G
Warning!
For safety reasons, switch off the wipers and
remove the SmartKey from the starter switch
(vehicles with KEYLESS-GO: Make sure the
vehicle’s on-board electronics have status 0)
before replacing a wiper blade. Otherwise, the
wiper motor could suddenly turn on and cause
injury. G
Warning!
Wiper blades are components that are subject
to wear and tear. Replace the wiper blades
twice a year, preferably in the spring and fall.
Otherwise the windshield will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! To avoid damage to the hood, the wiper
arms should only be folded forward when
in the vertical position.
! Never open the hood when a wiper arm is
folded forward.
Hold on to the wiper when folding a wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield.
Do not allow a wiper arm to contact the
windshield glass without a wiper blade
inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center. Placing wiper arms in vertical position
Wiper arms in vertical position
X
Make sure the hood is fully closed.
Vehicles with SmartKey X
Turn the SmartKey in the starter switch to
position 1.
X Turn the combination switch to wiper
setting °.
X With wiper arms in vertical position, turn
the SmartKey in the starter switch to
position 0.
X Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO X
Turn off the engine.
With the driver’s door closed, the starter
switch is now in position 1.
X Turn the combination switch to wiper
setting °.
X With wiper arms in vertical position, open
the driver’s door.
The starter switch is set to position 0, same
as the SmartKey removed from the starter
switch.
X Turn the combination switch to wiper
setting $. 270
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Removing wiper blades
! Do not pull on the wiper blade inserts.
They could tear.
X Fold the wiper arm forward until it snaps
into place. X
Turn the wiper blade at a right angle to
wiper arm.
X Slide the wiper blade sideways out of the
retainer. Installing wiper blades
X Slide the wiper blade onto the wiper arm
until it locks in place.
X Rotate the wiper blade into a position
parallel to the wiper arm.
X Fold the wiper arm backward to rest on the
windshield.
Make sure you hold on to the wiper when
folding the wiper arm back.
! Make sure the wiper blades are installed
properly. Improperly installed wiper blades
may cause windshield damage. Flat tire
Safety notes
Your vehicle may be equipped with a
Minispare wheel or a spare wheel with
collapsible tire. For information on your vehicle’s equipment,
see “Rims and tires” (
Y page 291). G
Warning!
The dimensions of the spare wheel are
different from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Contact the nearest authorized Mercedes-
Benz Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than one
spare wheel mounted.
Do not switch off the ESP ®
when a spare
wheel is mounted. Preparing the vehicle
X Whenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.
X Turn on the hazard warning flasher.
X Turn the steering wheel so that the front
wheels are in a straight-ahead position.
X Engage the parking brake.
X Shift the automatic transmission into park
position P.
X Turn off the engine.
X Remove the SmartKey from the starter
switch.
or
X Vehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door can then be closed again. Flat tire
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X
Turn the SmartKey in the starter switch to
position 1.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button once. Do
not depress the brake pedal.
X Press I on electric air pump switch ;.
The electric air pump switches on and
inflates the collapsible tire.
X Inflate the collapsible tire to the
recommended tire inflation pressure as
specified for your vehicle ( Y page 296).
This should take approximately 5 minutes. G
Warning!
The air hose and the union nut can become
hot during inflation. Exercise proper caution
to avoid burning yourself when using the
equipment.
! Do not operate the electric air pump
longer than 8 minutes without interruption.
Otherwise it may overheat.
You may operate the air pump again after
it has cooled off.
! Compare the recommended tire inflation
pressure for your vehicle with the tire
inflation pressure on the yellow label
located on the spare wheel rim.
If the tire inflation pressure on the yellow
label on the spare wheel rim differs from
the values given in this Operator’s Manual,
inflate the tire to the recommended tire
inflation pressure given on the yellow label
on the spare wheel rim.
X Press 0 on electric air pump switch ;.
X Turn the SmartKey in the starter switch to
position 0.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button twice. Do
not depress the brake pedal.
X Version 1 only: If the tire inflation pressure
is above the recommended tire inflation pressure as specified for your vehicle
(Y page 296), decrease tire pressure using
the vent screw on air hose ?.
X Version 2 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 296), decrease tire pressure using
deflate button B. G
Observe Safety notes, see page 185.
X Detach the electric air pump.
X Reinstall collapsible tire valve cap.
X Version 1 only: Store electrical plug =
and air hose ? behind flap :.
X Version 2 only: Store electrical plug =
and the air hose back into the pump
housing bottom.
X Place the electric air pump back in its
designated storage space.
X Lower the vehicle.
Lowering the vehicle G
Warning!
Vehicles with spare wheel with collapsible tire
only: Inflate collapsible tire only after the
wheel is properly attached.
Inflate the collapsible tire using the electric
air pump before 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. 276
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Do not rub the battery with rags or cloths. The
battery could explode if touched due to
electrostatic charge or due to spark
formation.
! The battery is a Valve- Regulated Lead
Acid (VRLA) battery, also referred to as
“fleece” battery.
Such
batteries do not require topping-up of
the electrolyte level. VRLA batteries
therefore do not have cell caps and the
battery cover is non-removable. Do not
attempt to open the battery as otherwise
the battery will be damaged.
VRLA batteries do not require topping-up of
the electrolyte level. They cannot be
opened to check the electrolyte level.
However, the battery condition must be
checked periodically by performing a
battery conductance test. Refer to
Maintenance Booklet for battery condition
testing intervals.
The factory-equipped battery may only be
replaced with a battery that
R has the same security features
R is of identical size
R is of identical voltage
R is of identical capacity
! As any other battery, the battery may
discharge if you do not operate the vehicle
for an extended period of time. Have the
battery disconnected at a qualified
workshop or an authorized Mercedes-Benz
Center in such a case. You may also
connect an accessory battery charge unit
expressly approved by Mercedes-Benz for
your vehicle model to maintain the battery
charge. Contact an authorized Mercedes-
Benz Center for further information.
The battery, the battery ventilation hose
and the lateral plug must always be
securely installed when the vehicle is in
operation. !
Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch or
KEYLESS-GO button is in position 1.
Otherwise the alternator and other
electronic components could be severely
damaged.
Have the battery checked regularly at an
authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for
maintenance intervals or contact an
authorized Mercedes-Benz Center for
further information.
i After battery power was interrupted, do
the following:
R Synchronize the power windows
(Y page 95).
R Synchronize the tilt/sliding sunroof
(Y page 154). Charging the battery
G
Warning!
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during
charging and could cause an explosion that
may

result in personal injury, paint damage or
corrosion.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for
information and availability.
Charge battery in accordance with the
separate instructions for the accessory
battery charger.
Have the battery charged at an authorized
Mercedes-Benz Center. If you charge the Battery
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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 on cover : as indicated by the
arrow.
X Fold cover : down 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 224).
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.
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 282) and snap it into place.
X Store the towing eye bolt ; and wheel
wrench back into the vehicle tool kit. 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).
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 parking brake.
X Switch off the automatic central locking
(Y page 123).
X Switch off the ignition and leave the
SmartKey in the starter switch.
X Switch on the hazard warning flasher
(Y page 90).
! Because the ESP ®
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 vehicle
is being towed with the front axle raised. Towing the vehicle
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explains the fuse allocation and fuse
amperages.
Before replacing fuses
X Engage the parking brake.
X Make sure the automatic transmission is in
park position P.
X Switch off all electrical consumers.
X Turn off the engine.
X Remove the SmartKey from the starter
switch.
X Vehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door then can be closed again. Fuse box in passenger compartment
! Do not use sharp objects such as a
screwdriver to open the fuse box cover in
the dashboard. You could damage the fuse
box cover or the dashboard. X
Open the driver’s door.
X Opening: Insert flat, blunt object as a lever
in-between the edge of fuse box cover :
and the dashboard at the position indicated
by the arrow.
X Loosen fuse box cover : from the
dashboard using the lever.
X Using your hands, pull cover : in direction
of arrow and remove it. X
Closing: Hook fuse box cover : into the
opening at the front.
X Press fuse box cover : back on until it
engages.
! The fuse box cover must be properly
positioned as described. Otherwise,
moisture or dirt could enter the fuse box
and possibly impair fuse operation. Fuse box in trunk
X
Open the trunk.
X Opening: Insert flat, blunt object as a lever
into the edge of cover : and remove
cover :.
X Closing: Install cover :. Fuses
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