Get Controls in detail -> Locking and unlocking Guide for Mercedes C Class 4 Door First Generation (2000-2006)

Controls in detail

In 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”

(컄 page 32) and (컄 page 54).

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:

앫 the doors

앫 the trunk

앫 the fuel filler flap

SmartKey with remote control

1 ‹ Lock button

2 Š Opening button for the trunk lid

3 Mechanical key locking tab

4 Œ Unlock button

5 Battery check lamp

6 Â Panic button* (

컄 page 76).

Canada only:

Only vehicles equipped with an

anti-theft alarm system* have

SmartKeys with integrated panic

button 6.

Controls in detail

Locking and unlocking

Factory setting

Global unlocking

왘 Press button Œ.

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:

앫 neither door nor trunk is opened

앫 the SmartKey is not inserted in the

starter switch

앫 the central locking switch is not

activated

Global locking

왘 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

pressing Œ only unlocks the driver’s

door and the fuel filler flap.

왘 Press and hold buttons Œ and ‹

simultaneously for about five seconds

until battery check lamp 5 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.

You can also open and close the power

windows (컄 page 225) and power

tilt/sliding sunroof* (컄 page 229) from

outside using the SmartKey.

컄컄

Controls in detail

Locking and unlocking

The SmartKey will then function as

follows:

Unlocking driver’s door and fuel filler

flap

왘 Press button Œ once.

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

왘 Press button Œ twice.

All turn signal lamps flash once. The

locking knobs in the doors move up.

The anti-theft alarm system* is

switched off.

Global locking

왘 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

왘 Press and hold buttons Œ and ‹

simultaneously for about six seconds

until battery check lamp 5 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.

앫 Check the batteries in the

SmartKey (컄 page 91) and replace

them if necessary (컄 page 343).

앫 Use the mechanical key to unlock

the driver’s door (컄 page 337) and

the trunk lid (컄 page 338).

앫 Use the mechanical key to lock the

driver’s door (컄 page 338).

앫 Have the vehicle battery and the

battery connections checked

(컄 page 360).

If the SmartKey is malfunctioning,

contact an authorized Mercedes-Benz

Center.

컄컄

Controls in detail

Locking and unlocking

Checking the batteries

왘 Press button ‹ or Œ.

Battery check lamp 5 comes on

briefly to indicate that the SmartKey

batteries are in order.

Unlocking and opening the trunk lid

You can unlock and open the trunk

separately.

A minimum height clearance of 5.71 ft

(1.74 m) is required to open the trunk lid.

왘 Press button Š until trunk lid

unlocks and begins to open.

Loss of SmartKey or mechanical key

If you lose a SmartKey or mechanical key,

you should do the following:

왘 Have the SmartKey deactivated by an

authorized Mercedes-Benz Center.

왘 Report the loss of the SmartKey or the

mechanical key immediately to your

car insurance company.

왘 If necessary, have the mechanical lock

replaced.

Your authorized Mercedes-Benz Center

will be glad to supply you with a replace-

ment.

If battery check lamp 5 does not

come on briefly during check, then the

SmartKey batteries are discharged.

Replace the batteries (

컄 page 343).

You can obtain the required batteries

at any authorized Mercedes-Benz

Center.

If the batteries are checked within

signal range of the vehicle, pressing

the ‹ or Œ button will lock or

unlock the vehicle accordingly.

The trunk lid swings open upwards

automatically. Always make sure there

is sufficient overhead clearance.

Controls in detail

Locking and unlocking

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.

1 Locking knob

2 Inside door handle

Front doors

왘 Pull on door handle 2 on the

respective front door to open door.

If door was locked, locking knob 1 will

move up.

Rear doors

왘 Pull up locking knob 1 on the

respective rear door to unlock door.

왘 Pull on door handle 2 on the

respective rear door to open door.

Opening the trunk

Opening the trunk from the outside

A minimum height clearance of 5.71 ft

(1.74 m) is required to open the trunk lid.

The handle is located above the rear

license plate recess.

1 Handle

If 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:

앫 Press button Œ or ‹ on the

SmartKey.

앫 Insert the SmartKey in the starter

switch.

Controls in detail

Locking and unlocking

The vehicle must be unlocked.

왘 Pull on handle 1.

The trunk lid unlocks and begins to

open.

The trunk can also be opened using

button Š on the SmartKey or from its

inside in an emergency, see “Trunk lid

emergency release” (

컄 page 95).

Opening the trunk from the inside

You can open the trunk from the inside if

the vehicle is stationary.

A minimum height clearance of 5.71 ft

(1.74 m) is required to open the trunk lid.

The remote trunk lid switch is located on

the driver’s door.

1 Remote trunk lid switch with indicator

lamp

왘 Press remote trunk lid switch 1 until

the trunk begins to open.

The indicator lamp in the switch

remains lit as long as the trunk is open.

The trunk can also be opened using

button Š on the SmartKey or from its

inside in an emergency, see “Trunk lid

emergency release” (

컄 page 95).

The trunk lid swings open upwards

automatically. Always make sure there

is sufficient overhead clearance.

The trunk lid swings open upwards

automatically. Always make sure there

is sufficient overhead clearance.

Controls in detail

Locking and unlocking

Closing the trunk

1 Handle

왘 Lower trunk lid using handle 1.

왘 Close trunk lid with hands placed flat

on it.

Warning! G

To prevent possible personal injury, always

keep hands and fingers away from the trunk

opening when closing the trunk. Be espe-

cially 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 trunk closed as, among

other dangers such as visibility blockage,

exhaust fumes may enter the vehicle

interior.

Do not place the SmartKey in the open

trunk. You may lock yourself out.

If the vehicle was previously centrally

locked, the trunk lid will lock automati-

cally after closing it. The turn signals

will flash three times to confirm lock-

ing.

Controls in detail

Locking and unlocking

Trunk lid emergency release

The emergency release button is located

on the inside of the trunk lid.

1 Emergency release button

왘 Briefly press emergency release

button 1.

The trunk lid unlocks and the trunk lid

opens.

Illumination of the emergency release

button:

앫 The button will flash for 30 minutes

after opening the trunk.

앫 The button will flash for 60 minutes

after closing the trunk.

The trunk lid swings open upwards

automatically.

The emergency release button unlocks

and opens the trunk while the vehicle is

standing still or in motion.

The emergency release button does

not open the trunk lid if the vehicle

battery is discharged or disconnected.

If the vehicle has previously been

locked from the outside with the

SmartKey, opening the trunk from the

inside using the emergency release

button will trigger the anti-theft alarm

system*.

To cancel the alarm, do one of the

following:

앫 Press button Œ or ‹ on the

SmartKey.

앫 Insert the SmartKey in the starter

switch.

Controls in detail

Locking and unlocking

Automatic central locking

The doors and the trunk 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

mode using the control system, see “Set-

ting automatic locking” (

컄 page 145).

Locking and unlocking from the inside

You can lock or unlock the doors and the

trunk from inside using the central locking

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 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

앫 is pushed or towed

앫 is on a test stand

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.

Controls in detail

Locking and unlocking

The switches are located in the center

console.

1 Central locking switch

2 Central unlocking switch

Locking

왘 Press central locking switch 1.

If all doors are closed, the vehicle

locks.

Unlocking

왘 Press central unlocking switch 2.

The vehicle unlocks.

You 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

switch 2.

If the vehicle was previously locked

with the central locking switch 1

앫 while in the selective remote con-

trol mode, only the door opened

from the inside is unlocked.

앫 while in the global remote control

mode, the complete vehicle is

unlocked when a door is opened

from the inside.

Controls in detail -> Locking and unlocking for Your Mercedes C Class 4 Door First Generation (2000-2006)

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