2006 MERCEDES-BENZ SL600 keyless

373 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
F
Key
not detected
The SmartKey with KEYLESS-GO* is
not recognized while the engine is
running because:

The SmartKey with
KEYLESS-GO* is not in the vehi-
cle.


There is strong radio-frequency
interference.

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

Search for the SmartKey with KEYLESS-GO*
or continue to operate the vehicle with the
SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again af-
ter the engine is stopped.
Key
not detected
The SmartKey with KEYLESS-GO* is
not recognized when attempting to
start the engine with the
KEYLESS-GO start/stop button* on
the gear selector lever because:

The SmartKey with
KEYLESS-GO* is not in the vehi-
cle.


The battery in the SmartKey
with KEYLESS-GO* is not insert-
ed properly or completely dis-
charged.

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

Make sure the battery in the SmartKey with
KEYLESS-GO* is properly inserted
(page 390) and is not discharged
(page 106).

Operate the vehicle with the SmartKey if
necessary.

374 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
F
Key
still
in vehicle
A SmartKey with KEYLESS-GO* left
in the vehicle was recognized while
locking the vehicle from the out-
side.

Take the SmartKey with KEYLESS-GO* out of
the vehicle.
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as
soon as possible.
Brake lamp
Left
Substitute
bulb on
The left brake lamp is malfunction-
ing. A substitute bulb has been
brought into use.

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

378 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
.
Right turn signal
Mirror
The right turn signal in the side mir-
ror is malfunctioning. This message
will only appear if all light emitting
diodes have stopped working.

Have the LEDs replaced as soon as possible.
Tail lamp
Left
Substitute
bulb on
The left tail lamp is malfunctioning.
A substitute bulb has been brought
into use.

Visit an authorized Mercedes-Benz Center as
soon as possible.
Tail lamp
Right
Substitute
bulb on
The right tail lamp is malfunction-
ing. A substitute bulb has been
brought into use.

Visit an authorized Mercedes-Benz Center as
soon as possible.
Turn off
lamps
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 toM.
Turn signal
Rear left
Substitute
bulb on
The left rear turn signal lamp is mal-
functioning. A substitute bulb has
been brought into use.

Replace the bulb as soon as possible.

385 Practical hints
Locking/unlocking in an emergency
Locking/unlocking in an emergency
Unlocking the vehicle
If you cannot unlock the driver’s door using
the SmartKey, open the door using the me-
chanical key.
1Mechanical key locking tab
2Mechanical key

Move locking tab 1 direction of arrow
and slide the mechanical key 2 out of
the housing.Unlocking the driver’s door
1Unlocking

Unlock the door with the mechanical
key. To do so, push the mechanical key
in the lock until it stops and turn it
counterclockwise.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button Œ or ‹on the
SmartKey.


Insert the SmartKey in the starter
switch.


Press the KEYLESS-GO* start/stop
button (
page 37).


Grasp the outside door handle (ve-
hicles with KEYLESS-GO* only).

386 Practical hintsLocking/unlocking in an emergencyUnlocking the trunk
A minimum height clearance of
6.2 ft (1.89 m) is required to open the
trunk lid.
If you are unable to unlock the trunk with
the SmartKey, open the trunk with the me-
chanical key.
The handle is located above the rear li-
cense plate recess.Trunk lid lock1Unlocking
2Handle

Insert the mechanical key into the
trunk lid lock.

Turn the mechanical key counterclock-
wise to position 1 and hold it in this
position.

Pull the trunk lid handle 2 and lift lid.Unlocking the glove box
Lockable storage areas in the passenger
compartment include:


the glove box


the storage compartment under the
armrest


the rear storage compartments
If these cannot be unlocked by means of
the SmartKey or the SmartKey with
KEYLESS-GO*, use the mechanical key to
unlock the glove box.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button Œ or ‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.


Press the KEYLESS-GO* start/stop
button (
page 37).


Grasp the outside door handle (ve-
hicles with KEYLESS-GO* only).
iTo unlock the remaining storage com-
partments, the cause for the malfunc-
tion of the SmartKey or the SmartKey
with KEYLESS-GO* must be deter-
mined and corrected, see (
page 99)
and (
page 104).

387 Practical hints
Locking/unlocking in an emergency
1Separately unlocking the glove box
Slide mechanical key out of SmartKey
housing (
page 385).

Insert the mechanical key into the
glove box lock and turn it to
position1.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey, lock it with the mechanical key
as follows:
Close the passenger door and the
trunk.

Press the central locking switch in the
center console (
page 113).

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

If necessary push it down manually.

Remove the mechanical key from of
the SmartKey (
page 385).

Check whether the trunk is locked.

If necessary, lock the trunk with the
mechanical key (
page 110).
Except for the driver’s door, the vehicle
should now be locked.
iUnlocking the glove box with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button Œ or ‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.


Press the KEYLESS-GO* start/stop
button (
page 37).


Grasp the outside door handle (ve-
hicles with KEYLESS-GO* only).


389 Practical hints
Replacing SmartKey batteries
Replacing SmartKey batteries
If 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 mechanical key1
(page 385).
1Mechanical key
2Slide
3Battery compartment

Insert mechanical key1in direction
of arrow into side opening.

Using mechanical key1, push gray
slide2to unlatch battery compart-
ment 3.

Pull battery compartment3out of the
housing in direction of arrow.

Remove the batteries in direction of ar-
row.
4Battery
5Contact spring

Using a lint-free cloth, insert new bat-
teries 4 under contact spring 5 with
the positive terminal (+) facing up.

Return battery compartment 3 into
housing until it locks into place.

Slide mechanical key 1 back into the
SmartKey.

Check the operation of the SmartKey.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.iWhen inserting batteries, make sure
they are clean and free of lint.

390 Practical hintsReplacing SmartKey batteriesSmartKey with KEYLESS-GO*
Replacement battery: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key
(page 385).

Take the battery compartment out of
the SmartKey housing (
page 389).1Battery
2Tilt battery up
3Mechanical key

Using mechanical key3, apply pres-
sure to position 2.
Battery 1 tilts up slightly.

Pull out battery 1 in direction of ar-
row.

Using a lint-free cloth, insert the new
battery under the contact spring with
the plus (+) side facing up.

Return the battery compartment into
the housing until it locks into place.

Slide mechanical key 1 back into the
SmartKey, see “SmartKey”
(page 389).

Check the operation of the SmartKey
with KEYLESS-GO.
iWhen replacing batteries, always re-
place both batteries. The required re-
placement batteries are available at
any authorized Mercedes-Benz Center.