2006 MERCEDES-BENZ CL500 key

353 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
_
ENTRY POSITION
DO NOT DRIVE
Seat, exterior mirrors and steering wheel
have not yet moved to their preset driving
positions.

Wait until the seat, exterior mirrors and
steering wheel have moved to their driv-
ing positions.
The message will disappear.
Y

HOOD OPEN
You are driving with the hood open.

Close the hood (
page 274).
I
REMOVE KEY
You have forgotten to remove the
SmartKey.

Remove the SmartKey from the starter
switch.
REPLACE KEY
DRIVE TO WORKSHOP
The SmartKey is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
AUTOMATIC LIGHT ON
REMOVE KEY
SmartKey in starter switch position
1or2.

Remove the SmartKey from the starter
switch.
KEY
CHECK BATTERY
The battery in the SmartKey with
KEYLESS-GO* is discharged.

Replace the battery (
page 377).
KEY
NOT RECOGNIZED
SmartKey with KEYLESS-GO* is not rec-
ognized while the engine is running be-
cause

the SmartKey is not in the vehicle


there is strong radio-frequency inter-
ference

Stop the vehicle in a safe location as soon
as it is safe to do so.

Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again
after it has been stopped.

354 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
F
KEY
NOT RECOGNIZED
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.

Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.

Operate the vehicle with the SmartKey in
the starter switch if necessary.
KEY
STILL IN VEHICLE
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.

Take the SmartKey with KEYLESS-GO*
out of the vehicle.
KEYLESS-GO
DRIVE TO WORKSHOP
The KEYLESS-GO* system is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.
.
3RD BRAKE LIGHT
CHECK LIGHT

The high mounted brake lamp is malfunc-
tioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
STOP LAMP
VISIT WORKSHOP
Brake lamp illumination is delayed or
lamp is permanently on.

Visit an authorized Mercedes-Benz
Center as soon as possible.

358 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
.
TURN OFF LIGHTS
You have removed the SmartKey from the
starter switch and opened the driver’s
door or removed the SmartKey with
KEYLESS-GO* from the vehicle and left
the headlamps on.

Turn the exterior lamp switch to M
(page 52).
FRONT TURN SIGNAL, L
CHECK LIGHT

The left front turn signal lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
FRONT TURN SIGNAL, R
CHECK LIGHT

The right front turn signal lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
REAR TURN SIGNAL, L
SUBSTITUTE LAMP ON
The left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.

Replace the bulb as soon as possible.
REAR TURN SIGNAL, R
SUBSTITUTE LAMP ON
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.

Replace the bulb as soon as possible.
MIRROR TURN SIG., L
CHECK LIGHT
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.

Visit an authorized Mercedes-Benz
Center as soon as possible.
MIRROR TURN SIG., R
CHECK LIGHT
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.

Visit an authorized Mercedes-Benz
Center as soon as possible.

359 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
(
SEAT BACKREST, LEFT
LOCK
The driver seat backrest is not engaged.

Fold back and push the seat backrest un-
til the seat cushion and seat backrest au-
dibly engage into the driving position.
SEAT BACKREST, RIGHT
LOCK
The passenger seat backrest is not en-
gaged.

Fold back and push the seat backrest un-
til the seat cushion and seat backrest au-
dibly engage into the driving position.
<
SEAT BELT SYSTEM
DRIVE TO WORKSHOP
The seat belt system is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
K
CLOSE
SUNROOF
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof open.

Close the tilt/sliding sunroof
(page 202).
J
CLOSE
SUNROOF
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof open.

Close the tilt/sliding sunroof
(page 202).
L
TELE AID
DRIVE TO WORKSHOP
One or more main functions of the
Tele Aid system are malfunctioning.

Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
TELE AID BATTERY
DRIVE TO WORKSHOP
The emergency power battery for the
Tele Aid system is malfunctioning. If the
vehicle battery is also discharged,
Tele Aid will not be operational.

Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.

372 Practical hintsUnlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey or KEYLESS-GO*, open the
driver’s door and the trunk using the me-
chanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key

Move locking tab1 in the direction of
arrow.

Slide the mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking

Insert the mechanical key into the driv-
er’s door lock until it stops.

Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking and opening the driver’s
door and/or the trunk with the me-
chanical key will trigger the anti-theft
alarm system.
To cancel the alarm, insert the
SmartKey or SmartKey with
KEYLESS-GO* in the starter switch.

373 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 6.3 ft
(1.90 m) is required to open the trunk lid.
The trunk lid lock is located next to the
handle above the rear license plate recess.
1Unlocking and opening
2Trunk lid lock
Insert the mechanical key into the
trunk lid lock until it stops.

Turn the mechanical key counterclock-
wise to position1.
The trunk opens.

Turn the mechanical key back and re-
move it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or the SmartKey with
KEYLESS-GO*, do the following:
Close the passenger door and the
trunk.

Press the central locking switch in the
center console (
page 111).

Check to see whether the locking knob
on the passenger door has moved
down.

If necessary, push it down manually.
Except for the driver’s door, the vehicle
should now be locked.
1Locking

Remove the mechanical key out of the
SmartKey (
page 372).

Insert the mechanical key into the driv-
er’s door lock until it stops.

Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.

376 Practical hintsReplacing SmartKey batteriesIf the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey (
page 372).1Mechanical key
2Slide
3Battery compartment

Insert mechanical key1 in the direc-
tion of arrow in side opening.

Using mechanical key1, push gray
slide 2 to unlatch battery compart-
ment 3.

Pull battery compartment3 out of the
housing in the direction of arrow.
Warning!
G
Batteries contain poisonous and corrosive
substances. Therefore keep the batteries
out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen inserting the batteries, make
sure they are clean and free of lint.iThe required replacement batteries are
available at any authorized
Mercedes-Benz Center.iWhen changing batteries, always re-
place both batteries.

377 Practical hints
Replacing SmartKey batteries
4Battery
5Contact spring
Remove the batteries4 in the direc-
tion of arrow.

Using a lint-free cloth, insert new
batteries4 under the contact
spring5 with the positive terminal (+)
side facing up.

Return battery compartment3
(page 376) into housing until it locks
into place.

Slide mechanical key1 (
page 372)
back into the SmartKey.

Check the operation of the SmartKey.
SmartKey with KEYLESS-GO*
Replacement battery: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey with KEYLESS-GO
(page 372).

Remove battery compartment3 out
of the housing (
page 376).
1Battery
2Tilt battery up
3Mechanical key

Using mechanical key3, apply pres-
sure to position2.
Battery1 tilts up slightly.

Pull out battery1 in the direction of
arrow.

Using a lint-free cloth, insert new
battery1 with the plus (+) side facing
up.

Return battery compartment3
(page 376) into housing until it locks
into place.

Slide mechanical key1 (
page 376)
back into the SmartKey with
KEYLESS-GO.

Check the operation of KEYLESS-GO.