2005 MERCEDES-BENZ C WAGON lock

90 Controls in detailIn the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.Locking and unlocking
For more information on locking and
unlocking, see “Getting started”
(page 32) and (
page 55).
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys are a
different color to help distinguish each
SmartKey unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:

the doors


the tailgate


the fuel filler flap
SmartKey with remote control1‹ Lock button
2Mechanical key locking tab
3ΠUnlock button
4Battery check lamp
5Â Panic button* (
page 78)
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button5.

91 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system* is
switched off.
The vehicle will lock again automatically
and reactivate the anti-theft alarm
system* within approximately 40 seconds
of unlocking if:


neither door nor tailgate is opened


the SmartKey is not inserted in the
starter switch


the central locking switch is not
activatedGlobal locking

Press button‹.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system* is
activated.
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp4 flashes
twice.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. It is possible for children to
open a locked door from the inside, which
could result in an accident and/or serious
injury.!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.iYou can also open and close the power
windows (
page 217) and power
tilt/sliding sunroof* (
page 221) from
outside using the SmartKey.


92 Controls in detailLocking and unlocking
The SmartKey will then function as
follows:
Unlocking driver’s door and fuel filler
flap

Press buttonΠonce.
All turn signal lamps flash once. The
locking knob in the driver's door moves
up. The anti-theft alarm system* is
switched off.
Global unlocking

Press buttonΠtwice.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system* is
switched off.Global locking

Press button‹.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system* is
activated.
Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until battery check lamp4 flashes
twice.
!If you can no longer lock or unlock the
vehicle with the SmartKey, then either
the batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing, or the vehicle battery is drained.

Check the batteries in the
SmartKey (
page 93) and replace
them if necessary (
page 331).


Use the mechanical key to unlock
the driver’s door (
page 326).


Use the mechanical key to lock the
driver’s door (
page 327).


Have the vehicle battery and the
battery connections checked
(page 347).
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.


93 Controls in detail
Locking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp4 comes on
briefly to indicate that the SmartKey
batteries are in order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:

Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
Opening the doors from the inside
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.
1Locking knob
2Inside door handle
Front doors
Pull on door handle2 on the
respective front door to open door.
If door was locked, locking knob1 will
move up.
iIf battery check lamp4 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 331).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within
signal range of the vehicle, pressing
the‹ orŒ button will lock or
unlock the vehicle accordingly.

94 Controls in detailLocking and unlockingRear doors
Pull up locking knob1 on the
respective rear door to unlock door.

Pull on door handle2 on the
respective rear door to open door.
Opening the tailgate
A minimum height clearance of 6.40 ft
(1.95 m) is required to open the tailgate.
The handle is located above the rear
license plate recess.
1Handle
The vehicle must be unlocked.
Pull on handle1.

Lift the tailgate.
Closing the tailgate
1Handle
Lower tailgate by pulling firmly on
handle1.

Close tailgate with hands placed flat on
it.
iIf the vehicle has previously been
locked from the outside with the
SmartKey, opening a door from the
inside will trigger the anti-theft alarm
system*.
To cancel the alarm, do one of the
following:

Press buttonŒ or‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.
!Always make sure there is sufficient
overhead clearance.

95 Controls in detail
Locking and unlocking
Automatic central locking
The doors and the tailgate automatically
lock when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.
You can deactivate the automatic locking
using the control system, see “Setting au-
tomatic locking” (
page 143).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the tail-
gate opening when closing the tailgate. Be
especially careful when small children are
around.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you and lock your vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.Warning!
G
Only drive with the tailgate closed as
exhaust fumes may enter the vehicle
interior.
iDo not place the SmartKey in the open
cargo compartment. You may lock
yourself out.iIf the vehicle was previously centrally
locked, the tailgate lid will lock auto-
matically when closed. The turn signals
will flash three times to confirm lock-
ing.
iThe doors unlock automatically after an
accident if the force of the impact
exceeds a preset threshold.
To prevent the vehicle door locks from
locking, deactivate the automatic
central locking when the vehicle

is pushed or towed


is on a test stand

96 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the doors and the
tailgate from inside using the central lock-
ing or unlocking switch. This can be useful,
for example, if you want to lock the vehicle
before starting to drive.
You cannot lock or unlock the fuel filler flap
with the central locking or unlocking
switch.The switches are located in the center
console.
1Central locking switch
2Central unlocking switchLocking

Press central locking switch1.
If all doors are closed, the vehicle
locks.
Unlocking

Press central unlocking switch2.
The vehicle unlocks.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
If the vehicle was previously centrally
locked using the SmartKey, it will not
unlock using the central unlocking
switch2.
If the vehicle was previously locked
with the central locking switch1

while in the selective remote con-
trol mode, only the door opened
from the inside is unlocked.


while in the global remote control
mode, the vehicle is unlocked
completely when a door is opened
from the inside.

97 Controls in detail
Seats
Seats
For information on seat adjustment, see
“Adjusting” (
page 35).
Easy-entry/exit feature*
This feature allows for easier entry into and
exit from the vehicle.
The easy-entry/exit feature can be
activated or deactivated in the Convenience
submenu of the control
system (
page 144).When exiting the vehicle, with the
easy-entry/exit feature activated and
depending on your selection, the steering
wheel tilts upwards and/or the driver’s
seat moves a few inches to the rear when
you:


remove the SmartKey from the starter
switch,
or


open the driver’s door with the
SmartKey in starter switch position0
or1.
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel and driver’s seat when the
easy-entry/exit feature is activated.
To cancel seat/steering wheel movement,
do one of the following:

Press seat adjustment switch*
(page 30).


Move steering column stalk*
(page 40).


Press memory position switch*
(page 106).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.