keyless MERCEDES-BENZ CL-CLASS 2007 Repair Manual

615 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Close doors
to lock themYou wanted to lock the vehicle but the
doors were not closed.Close doors and lock vehicle again.
Do not
forget keyThis display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine turned off and no SmartKey
in the starter switch.
This message is only a reminder.Take the SmartKey or SmartKey with
KEYLESS-GO* with you when leaving the
vehicle.
Please
remove keyYou have forgotten to remove the
SmartKey.Remove the SmartKey from the starter
switch.
Change
key batteriesThe batteries in the SmartKey with
KEYLESS-GO* are discharged.Replace the batteries (page 639).
Key
still in vehicleA SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the ve-
hicle from the outside.Take the SmartKey with KEYLESS-GO* out of
the vehicle.
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616 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Key
not recognizedThe SmartKey with KEYLESS-GO* is
momentarily not recognized.Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
If necessary, operate vehicle using SmartKey
with KEYLESS-GO* in starter switch under
KEYLESS-GO* button (
page 337).
Key being
initialized…
Please waitThe SmartKey with KEYLESS-GO* is being
initialized in the vehicle.Wait until the message disappears from the
multifunction display.
Remove starting
button, then
insert keyThe KEYLESS-GO* system is
malfunctioning.Remove KEYLESS-GO* button from the
starter switch (
page 337).
Operate the vehicle with the SmartKey with
KEYLESS-GO* in the starter switch.
Replace keyThe SmartKey with KEYLESS-GO* must be
replaced.Contact an authorized Mercedes-Benz
Center as soon as possible.
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631 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Shift to 'P'You have attempted to turn off the engine
with the KEYLESS-GO* start/stop button
and opened the driver’s door with the auto-
matic transmission not shift to positionP.Shift the automatic transmission toP
(
page 389).
or
Close the driver’s door.
You are driving with the trunk open.Close the trunk (page 462).
Washer fluid,
please refillThe water level has dropped to approx.
1.1 US qts (1.0 l).Add washer fluid (page 519).
Seat backrest,
Front Left
not lockedThe driver seat backrest is not engaged.
The driver’s seat belt can not secure the
driverFold back and push the seat backrest until
the seat cushion and seat backrest audibly
engage into the driving position.
Seat backrest,
Front Right
not lockedThe passenger seat backrest is not en-
gaged.
The front passenger’s seat belt can not se-
cure the passengerFold back and push the seat backrest until
the seat cushion and seat backrest audibly
engage into the driving position.
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635 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
If you are cannot unlock the vehicle with
the SmartKey or KEYLESS-GO*, unlock 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 mechanical key2 out of the
housing.Unlocking the driver’s door
Insert mechanical key2 into the driv-
er’s door lock until it stops.
Turn mechanical key2 counterclock-
wise to position1 and hold it there.
Pull the door handle until the locking
knob moves up.
The driver’s door is unlocked.
Pull the door handle once more to open
the driver’s door.
iUnlocking the vehicle with the mechanical
key and opening the driver’s door or the trunk
with the mechanical key will trigger the anti-theft
alarm system (
page 77).
To cancel the alarm, insert the SmartKey or
SmartKey with KEYLESS-GO* in the starter
switch.
1Unlocking
2Mechanical key
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636 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.78 ft
(1.76 m) is required to open the trunk lid.
Insert the mechanical key2 into the
trunk lid lock until it stops.
Turn mechanical key2 all the way
counterclockwise to position 1.
The trunk opens.
Turn the mechanical key2 back and
remove it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or KEYLESS-GO*, do the
following:
Open the passenger door.
Close the driver’s door and the trunk.
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 465).
Press down the locking knob of the
driver’s door manually.
Press down the locking knob of the
passenger door.
Exit the vehicle.
Close the passenger door.
The vehicle is locked.
1Unlocking in an emergency
2Mechanical key
!The trunk lid swings open upwards automat-
ically. Always make sure that there is sufficient
overhead clearance.
iIf you cannot close the trunk with the re-
mote 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.
!To prevent inadvertent lockout, make sure
to have the SmartKey or SmartKey with
KEYLESS-GO* with you before proceeding with
the next step. The next step will lock the vehicle.
iThis procedure does not arm the anti-theft
alarm system nor does it lock the fuel filler flap.
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639 Practical hints
Replacing SmartKey batteries
Replacing SmartKey batteries
If the batteries in the SmartKey/SmartKey
with KEYLESS-GO* are discharged, the ve-
hicle can no longer be locked or unlocked.
It is recommended to have the batteries re-
placed at an authorized 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/SmartKey with
KEYLESS-GO*
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey/SmartKey with
KEYLESS-GO* (
page 635).
1Mechanical key
2Battery compartment
Insert mechanical key 1 into opening.
Press mechanical key 1 in direction of
arrow.
The battery compartment is unlatched.
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.
iWhen changing batteries, always replace
both batteries.
The required replacement batteries are available
at any authorized Mercedes-Benz Center.

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640 Practical hints
Replacing SmartKey batteries
Pull battery compartment 2 out of the
housing.
3Batteries
4Contact springs
Pull out batteries3.
Using a line-free cloth, insert new bat-
teries 3 under contact springs 4 with
the positive terminal (+) side facing up.
Return battery compartment 2
(
page 639) into housing until it locks
into place.
Slide the mechanical key back into the
SmartKey/SmartKey with
KEYLESS-GO*.
Check the operation of the SmartKey/
SmartKey with KEYLESS-GO*.

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647 Practical hints
Replacing wiper blades
Replacing wiper blades
Placing wiper arms in vertical position
Wiper blades in vertical position
Make sure the hood is fully closed.
Vehicles with SmartKey
Turn SmartKey in starter switch
position1.
Turn combination switch to wiper
settingu (
page 372).
With wiper arm in vertical position, turn
the SmartKey in starter switch to
position0.
Warning!G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before replacing a wiper blade.
Otherwise, the wiper motor could suddenly
turn on and cause injury.
Warning!G
Wiper blades are components that are sub-
ject to wear and tear. Replace the wiper
blades twice a year, preferably in the spring
and fall. Otherwise the windows will not be
properly wiped. As a result, you may not be
able to observe surrounding traffic condi-
tions and could cause an accident.
!To avoid damage to the hood:

The wiper arms should only be folded for-
ward when in the vertical position.

Never open the hood when the wiper arm is
folded forward.
!Hold on to the wiper when folding the wiper
arm back. If released, the force of the impact
from the tensioning spring could crack the wind-
shield.
Do not allow the wiper arms to contact the wind-
shield glass without a wiper blade inserted.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Center.
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648 Practical hints
Replacing wiper blades
Vehicles with KEYLESS-GO*
Make sure the vehicle’s on-board elec-
tronics have status 1 (
page 337).
Turn combination switch to wiper
settingu (
page 372).
Press KEYLESS-GO start/stop button
repeatedly until windshield wipers
start.
Press KEYLESS-GO start/stop button
when the wiper arms are in a vertical
position.
Removing wiper blades
Fold the wiper arm forward until it
snaps into place.
Turn the wiper blade at a right angle to
wiper arm (arrow 1).
Slide the wiper blade sideways out of
the retainer in the direction of
arrow2.
Installing wiper blades
Slide the wiper blade onto wiper arm
until it locks in place.
Rotate the wiper blade into position
parallel to wiper arm.
Fold the wiper arm backward to rest on
the windshield. Make sure you hold
onto the wiper when folding the wiper
arm back.
!Do not pull on the wiper blade inserts. They
could tear.
!Make certain that the wiper blades are prop-
erly installed. Improperly installed wiper blades
may cause windshield damage.
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649 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
Turn on the hazard warning flashers.
Turn the steering wheel so that the
front wheels are in a straight ahead
position.
Shift the automatic transmission toP
(
page 389).
Turn off the engine (page 387).
Remove the SmartKey from the starter
switch.
Vehicles with SmartKey with
KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* button once
(
page 388).
Open the driver’s door (this puts
the starter switch in position0,
same as with the SmartKey re-
moved from the starter switch). The
driver’s door then can be closed
again.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the Minispare wheel
iOpen the door only when conditions are safe
to do so.
Warning!G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted. Adapt your driving style accord-
ingly.
The Minispare wheel is for temporary use
only. When driving with Minispare wheel
mounted, ensure proper tire inflation
pressure and do not exceed a vehicle speed
of 50 mph (80 km/h).
Contact the nearest Mercedes-Benz Center
as soon as possible to have the Minispare
wheel replaced with a regular road wheel.
Never operate the vehicle with more than
one Minispare wheel mounted.
Do not switch off the ESP
® when a Minis-
pare wheel is mounted.
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