2004 MERCEDES-BENZ SLK230 child lock

130 Controls in detailRetractable hardtop
Retractable hardtopOpening and closing the retractable hardtop
For safety reasons, the retractable hardtop
can only be opened and closed when the
vehicle is standing still.
Warning!
G
Before operating the switch for the retract-
able hardtop make sure no persons are in-
jured by the moving parts (retractable
hardtop, roof frame, and trunk lid) due to in-
attention.
Hands must never be placed near the roof
frame, upper windshield area, retractable
hardtop, shelf behind roll bars, or trunk lid
while the retractable hardtop is being raised
or lowered. Serious personal injury may oc-
cur.
If potential danger exists, release the re-
tractable hardtop switch. This immediately
interrupts the raising or lowering procedure.
You then can operate the retractable hard-
top switch to raise or lower the retractable
hardtop away from the danger zone.
!Never sit or place heavy objects on the
rear shelf. Doing so could cause dam-
age to the retractable hardtop and the
rear shelf.Warning!
G
When leaving the vehicle, always remove the
key from the steering lock and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Unsupervised use of vehicle equipment
may cause an accident and/or serious per-
sonal injury.

143 Controls in detail
Useful features
Cigarette lighter
1Cigarette lighter
2Cover
Turn key in the steering lock to
position1 or2 (
page 29).

Slide cover2 rearward.

Push in cigarette lighter1.
The cigarette lighter will pop out auto-
matically when hot.
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.
Warning!
G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
When leaving the vehicle, always remove the
key from the steering lock, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.iThe cigarette lighter socket can be
used to accommodate electrical acces-
sories up to a maximum 85 W.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.

218 Practical hintsUnlocking/locking in an emergencyChanging batteries in remote control
If the batteries in the remote control are
discharged, 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.1Release button for key
2Battery cover
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Press release button1 on the remote
control.
The key folds out.

Pull off battery cover2 in direction of
arrow.

Remove the batteries.

Insert new batteries with the plus (+)
side facing up.

Press battery cover onto housing until
it engages.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.iWhen changing batteries, always re-
place both batteries.
When changing batteries, make sure
new batteries are clean and free of lint.
The required replacement batteries are
available at any Mercedes-Benz
Center.
iAfterwards, test the remote control to
see if it is functioning properly. If you
still cannot lock or unlock the vehicle,
synchronize the remote control
(page 219).

287 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
BabySmart
TM airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the passenger seat. The sys-
tem will automatically deactivate the
passenger front airbag when such a
seat is properly installed (indicator
lamp7 in the center console lights
up). See your authorized
Mercedes-Benz Center for availability.BabySmart
TM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.

289 Technical terms
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


drive shaft


axle shafts/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between standard operation S and
winter operation W.
Remote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.

293 Index
A
ABS 22, 66, 287
Malfunction indicator lamp 201
Warning lamp 201
Accelerator position, automatic
transmission 98
Accident
In case of 46
Activating
Air conditioning 107
Air recirculation mode 106
Anti-theft alarm system 71
Climate control 103
ESP 70
Exterior headlamps 43
Hazard warning flasher 86
Headlamps 43
High beams 85
Ignition 29
Immobilizer 71
Rear window defroster 101
Residual heat 107
Seat heater* 82
Tow-away alarm 72
Windshield wipers 44Activating automatic central locking 80
Adding
Coolant 181
Engine oil 179
Additional turn signals 226
Adjusting 30
Air distribution 105
Air volume 105
Backrest tilt 32, 33
Exterior rear view mirror 35
Head restraint height 32
Inside rear view mirror 35
Instrument cluster illumination 89
Manual seat 31
Mirrors 35
Seat cushion tilt 33
Seat fore and aft adjustment 31, 33
Seat height 31, 33
Seats 30
Telescoping steering column* 34
Adjusting headlamp aim
Horizontal headlamp aim 232
Vertical headlamp aim 231
Air conditioning 106Activating 107
Deactivating 107
Air conditioning refrigerant 279
Air distribution
Adjusting 105
Air pressure see Tire inflation
pressure 186
Air recirculation mode 106
Activating 106
Deactivating 106
Air volume
Adjusting 105
AIRBAG OFF indicator lamp 211
Airbags 53
BabySmart
TM airbag deactivation
system 287
BabySmartTM deactivation
system 62
Children 54
Front 56
Passenger 56
Safety guidelines 55
Side impact 57

294 IndexAlarm
Audible 65, 71, 72
Canceling 71, 72
Visual 71
Alarm system
Anti-theft 71
Alignment bolt 246
Alignment bolt (vehicle tool kit) 287
Anticorrosion/antifreeze 282
Antiglare
Automatic 99
Antilock brake system (ABS) 287
Anti-theft alarm system
Arming 71
Canceling alarm 71, 72
Disarming 71
Anti-theft systems 71
Anti-theft alarm system 71
Immobilizer 71
Tow-away alarm 72
Armrest
Storage compartment 141
Ashtray 142
ATF (automatic transmission fluid)* 180
Audio system 121Audio and telephone, operation 111
Button and soft key operation 115
Cassette mode 118
Operating and display elements 112
Operating safety 111
Operation 115
Radio mode 116
Switching off 115
Switching on 115
Telephone operation 125
Audio systems 111
Automatic antiglare for rear view
mirror 99
Automatic central locking
Activating 80
Deactivating 80
Automatic lighting control
Deactivating 87
Automatic locking when driving 79
Automatic transmission 93
Accelerator position 98
Emergency operation (Limp Home
Mode) 98
Gear ranges 95Gear selector lever position 95
Gear shifting malfunctions 98
Kickdown 98
Manual shifting 94
One-touch gearshifting 94
Program mode selector switch 97
Selector lever position 93
Winter program mode 97
Automatic transmission*
Fluid level 180
Starting with 41
Transmission fluid 180
B
BabySmart
TM
Airbag deactivation system 62
Compatible child seats 62, 287
Self-test 63
BabySmart
TM airbag deactivation
system 287
Backrest tilt 31
Backup lamps 227, 230
Bulbs 227
BAS 67, 287

296 IndexCentral locking
From inside 80
Unlocking from inside 80
Certification label 266
Changing CDs
CD mode 121
Charging
Vehicle battery 252
CHECK ENGINE malfunction indicator
lamp 205
Checking
Coolant level 173, 180
Oil level 172, 175
Tire inflation pressure 173
Vehicle lighting 173
Child safety 60
Airbags 54
Infant and child restraint systems 57,
60
Cigarette lighter 143
Cleaning
Cloth upholstery 197Cup holder 196
Gear selector lever 196
Hard plastic trim items 196
Headliner 197
Instrument cluster 196
Leather upholstery 197
Light alloy wheels 196
Plastic and rubber parts 197
Rear window 195
Seat belts 197
Steering wheel 196
Windows 195
Windshield 45
Wiper blades 195
Cleaning*
Headlamps 99
Climate control 102
Adjusting air distribution 105
Adjusting air volume 105
Air conditioning 106
Air recirculation mode 106
Deactivating the climate control
system 110
Defogging windshield 110
Defrosting 109Reactivating the climate control
system 110
Rear window defroster 101
Residual heat utilization 107
Residual ventilation 107
Setting the temperature 104
Clock 21
Setting 91
Closing
Glove box 139
Hood 175
Retractable hardtop 221
Side windows 128
Trunk lid 78
Windows 128
Closing hardtop
In an emergency 221
Cloth upholstery
Cleaning 197
Cockpit 18, 287
Coin holder 142
Collapsible tire 287