2000 MERCEDES-BENZ SLK320 door lock

30 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Central locking switch
1Locking
2Unl ock ing
The central locking switch is located in the center
console.The doors and trunk can only be locked with the central
locking switch, if both doors are closed.
If the vehicle was previously locked with the remote
control or key, the doors and trunk cannot be unlocked
with the central locking switch.
If the vehicle was previously locked with the central
locking switch, while in the selective remote control
mode, only the door opened from the inside is unlocked.
If the vehicle was previously locked with the central
locking switch , wh il e in th e global remote control mode,
the complete vehicle is unlocked when a door is opened
from the inside.
Note:
The storage compartment in the armrest as well as the
fuel filler f lap cannot be locked or unlocked with the
central locking switch.
P54.25-2225-26
12

31 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Automatic central locking
The central locking switch also operates the automatic
central locking.
Wit h th e automa tic central locking system activated, t he
doors and trunk are locked at vehicle speeds of
approximately 9 mph (15 km / h) or more. The fuel filler
f l ap and th e stora ge compartment in th e arm rest rema in
unlocked.
To a ctiva te:
With key in steering lock position 2 hold upper portion
of switch (1) for a minimum of 5 seconds.
To dea cti vate :
With key in steering lock position 2 hold lower portion
of switch (2) for a minimum of 5 seconds.Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approximately 9 mph
(15 km / h) or more.
If a door is opened from the inside at speeds of
approximately 9 mph (15 km / h) or less with the
automatic central locking activated, the door will again
be automatically locked at speeds of approximately
9 mph (15 km / h) or more.
Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:
With the automatic central locking activated and the
key in steering lock position 2, the vehicle doors will
lock if the left front wheel as well as the right rear
wheel spin at vehicle speeds of approximately 9 mph
(15 km / h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking.

32 Central locking system
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and controlsOperationDrivingInstrument
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Emergency unlocking in case of accident
The doors unlock automatically a short time after a
strong deceleration is detected, such as in a collision
(this is intended to aid rescue and exit). However, the
key must still be in the steering lock.
D riving on roug h roads may c ause t he ve hicle to unlock .
If necessary, the vehicle can be locked again with the
central locking switch, see page 30.

36 Antitheft alarm system
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The antitheft alarm is automatically armed or disarmed
with the remote control or any of your vehicle’s keys by
locking or unlocking the vehicle.
The antitheft alarm is armed within approximately
10 seconds after locking the vehicle.
A blinking lamp (1) indicates that the alarm is armed.
Operation:
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone:
•opens a door,
•opens the trunk,
•opens the hood,
•opens the glove box,
•attempts to raise the vehicle.The alarm will last approximately 3 minutes in form of
flashing exterior lamps. At the same time an alarm will
sound for 30 seconds. The alarm will stay on even if the
activating element (a door, for example) is immediately
closed. If the alarm stays on for more than 20 seconds,
an emergency call is initiated automatically. See Tele
Aid on page 130.
Note:
We recommend that you carry the flat key with you and
keep it in a safe place (e.g. your wallet) so that it is
always handy. Never leave the f lat key in the vehicle.
When you unlock the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the key in the steering lock
or press transmit buttonŒ or‹ on the key.

38 Seats
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Power seats
To operate th e power seat a dju stment sw itche s, turn key
in steering lock to position 1 or 2 (with the driver’s or
passenger’s door open, the power seats can also be
operated with the key removed or in steering lock
position 0).
Wa r n i n g !
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause the
driver to lose control of the vehicle.Never place hands under seat or near any moving
parts while a seat is being adjusted.For your protection, drive only with properly
positioned head restraints.Adjust head restraint to support the back of the
head approximately at ear level.
Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.When leaving the vehicle always remove the key
from the steering lock, and lock your vehicle.The power seats can also be operated with driver’s
or passenger door open. Do not leave children
unattended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehicle
equipment may cause serious personal injury.

48 Restraint systems
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Unfastening of seat belts
Push the release button (3) in the belt buckle (2).
Allow the retractor to completely rewind the seat belt by
guiding the latch plate (1).
Operation
The inertia reel stops the belt from unwinding during
sudden vehicle stops or when quickly pulling on the
belt.The locking function of the reel may be checked by
quickly pulling out the belt.
Wa r n i n g !
USE SEAT BELTS PROPERLY.• Seat belts can only work when used properly.
Never wear seat belts in any other way than as
described in this section, as that could result
in serious injuries in case of an accident.• Each occupant should wear their seat belt at all
times, because seat belts help reduce the
likelihood of and potential severity of injuries
in accidents, including rollovers. The
integrated restraint system includes “SRS”
(driver airbag, passenger airbag, door mounted
side impact airbags), “ETR” (seat belt
emergency tensioning retractors), and driver
knee bolster. The system is designed to
enhance the protection offered to properly
belted occupants in certain frontal (front
airbags) and side (side impact airbags) impacts
which exceed preset deployment thresholds.

51 Restraint systems
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index BabySmart
TM airbag deactivation system
Special BabySmart
TM compatible child seats, designed
for use with the Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are required for
use with the BabySmart
TM airbag deactivation system.
With the special child seat properly installed, the
passenger front airbag will not deploy. The 7
indicator lamp located on the center console will be
illuminated, except with key removed or in steering lock
position 0. The system does not deactivate the door
mounted side impact airbag.Self-test BabySmart
TM
without special child seat installed
After turning key in steering lock to position 1 or 2, the
7 indicator lamp located on the center console
comes on for approximately 6 seconds and then
extinguishes.
If the indicator lamp should not come on or is
continuously lit, the system is not functioning. You must
see an authorized Mercedes-Benz Center before seating
any child on the passenger seat.BabySmart
TM is a trademark of Siemens Automotive Corp.
Wa r n i n g !
The BabySmart
TM airbag deactivation system will
ONLY work with a special child seat designed to
operate with it. It will not work with child seats
which are not BabySmart
TM compatible.
Never place anything between seat cushion and
child seat (e.g. pillow), since it reduces the
effectiveness of the deactivation system.Follow the manufacturer’s instructions for
installation of special child seats.The passenger front airbag will not deploy only if
the 7 indicator lamp remains illuminated.
Please be sure to check the indicator every time
you use the special system child seat. Should the
light go out while the restraint is installed, please
check installation. If the light remains out, do not
use the BabySmart
TM restraint to transport children
on the passenger seat until the system has been
repaired.

54 Restraint systems
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cluster displayPractical hints Car care Index
3Side impact airbag
The side impact airbags are located in the doors.
The most effective occupant restraint system yet
developed for use in production vehicles is the seat belt.
In some cases, however, the protective effect of a seat
belt can be further enhanced by an airbag.In conjunction with wearing the seat belts, the driver
and passenger airbags can provide increased protection
for the driver and passenger in certain frontal impacts
exceeding preset thresholds.
Door mounted side impact airbags can provide
increased protection to belted occupants on the
impacted side of the vehicle in side impacts exceeding
its preset thresholds.
The operational readiness of the airbag system is
verified by the indicator lamp “SRS” in the instrument
cluster when turning the key in steering lock to
position 2. If no fault is detected, the lamp will go out
after approximately 4 seconds: after the lamp goes out,
the system continues to monitor the components and
circuitry of the airbag system and will indicate a
malfunction by coming on again. If the lamp does not
come on at all or if it fails to extinguish after
approximately 4 seconds or if it comes on thereafter, a
malfunction in the system has been detected.