2003 MERCEDES-BENZ SLK CLASS key battery

145 Controls in detail
Useful features
The Tele Aid system
(Tele
matic A
larm I
dentification on
Demand)
The Tele Aid system consists of three
types of response:


automatic and manual emergency


roadside assistance and


information.
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.

To activate, press the SOS button, the
Roadside Assistance button
•
or
the Information button
¡
, depend-
ing on the type of response required.Shortly after the completion of your Tele
Aid acquaintance call, you will receive a
user ID and password via first call mail. By
visiting www.mbusa.com and selecting
“Tele Aid” (USA only), you will have access
to account information, remote door un-
lock and more.
System self-check
Initially, after turning the key in the steer-
ing lock to position2, malfunctions are de-
tected and indicated (the indicator lamps
in the SOS button, the Roadside Assis-
tance button
•
and the Information
button
¡
stay on longer than
10 seconds or do not come on).
iThe SOS button is located in the over-
head control panel. The Roadside
Assistance button
•
and the Infor-
mation button
¡
are located below
the center armrest cover.
!The Tele Aid system utilizes the cellular
network for communication and the
GPS (Global Positioning System) satel-
lites for vehicle location. If either of
these signals are unavailable, the Tele
Aid system may not function and if this
occurs, assistance must be summoned
by other means.
Warning!
G
If the indicator lamps in the SOS button, in
the Roadside Assistance button, and/or in
the Information button do not come on dur-
ing the system self-check or if any of these
indicators remain illuminated constantly in
red after the system self-check, a malfunc-
tion in the system has been detected.
If a malfunction is indicated as outlined
above, the system may not operate as ex-
pected. Have the system checked at the
nearest Mercedes-Benz Center as soon as
possible.

186 OperationMaintenanceService term exceeded
If you have exceeded the suggested
service term:

the
9
or
´
appears in the
display2 for 30 seconds and a signal
sounds after switching on the ignition.


it is preceeded by a “-” (minus symbol)
The Mercedes-Benz Center will reset the
service indicator following a completed
service.
Calling up the service indicator
Within 1 second press knob1
(page 185) twice.
The service symbol and the service
deadline appear in the display2.
Resetting the service indicator
In the event that the service on your vehi-
cle is not carried out by an authorized
Mercedes-Benz Center, you can reset the
service indicator yourself.
Switch ignition on and immediately
press knob1 (
page 185) twice with-
in 1 second.
The present status for days or distance
is displayed.

Within 10 seconds turn key in steering
lock to position0.

Press and hold knob1 while turning
key in steering lock to position2 again.
The present status for days and dis-
tance is displayed once more.
Continue to hold knob1 until you hear
a signal.

Release knob1.
The service indicator now displays the
reset interval.
iIf the service indicator was inadvertent-
ly reset, have a Mercedes-Benz Center
correct it.
Only reset if the proper service has
been performed. Resetting the system
without performing proper service as
called for by the FSS will cause the FSS
to incorrectly determine the next ser-
vice interval which will result in engine
damage not covered by the Mer-
cedes-Benz Limited Warranty.
If the battery is disconnected, the days
of disconnection will not be included in
the count shown by the service indica-
tor. To arrive at the true service dead-
line, you will need to subtract these
days from the days shown in the ser-
vice indicator.
Do not confuse the service indicator
with the engine oil level indicator
:
.

212 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
that 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 213).

245 Practical hints
Battery
Battery
The battery is located in the engine com-
partment on the right-hand side.
1Battery
2Positive terminal
3Negative terminal
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the steering lock. Other-
wise the alternator and other electronic
components could be severely dam-
aged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!
G
With a disconnected battery

y o u w i l l n o l o n g e r b e a b l e t o t u r n t h e k e y
in the steering lock


the selector lever will remain locked in
positionP

251 Practical hints
Towing the vehicle
Towing eye
SLK 230 Kompressor except Sport
Package*, SLK 320 except Sport
Package*
The rear towing eye is located at the right,
below the bumper.
The front towing eye is located on the pas-
senger-side behind the grille in the bumper
panel.
1Grille SLK 320
except Sport Package*
2Grille SLK 230 Kompressor
except Sport Package*Removing grille SLK 320

Hold left and right end of grille1 and
pull out firmly.
Installing grille SLK 320

Position grille1 and press securely.
The grille should audibly snap into
place.
Removing grille SLK 230 Kompressor

Hold grille2, fold it down and pull out
firmly.
Installing grille SLK 230 Kompressor

Position grille2 and press securely.
The grille should audibly snap into
place.
iThe selector lever will remain locked in
positionP and the key will not turn in
the starter switch if the battery is dis-
connected or discharged. See notes on
the battery (
page 245) or on jump
starting (
page 247).
Vehicles with automatic transmission:
Manual unlocking of transmission se-
lector lever (page 214).

282 Technical termsRetractable hardtop
Hardtop that can be opened and closed
at the push of a button and stored in
the trunk.
Roll bar
Occupant protection system which
consists of tubular steel sheathed in
plastic.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line 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.Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being moved out of positionP
without key turned and brake pedal de-
pressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.The Tele Aid system is operational pro-
viding that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIREFIT
Accessory for emergency and tempo-
rary tire repair. The TIREFIT kit consists
of a container with sealant material, a
filler hose, a valve stem tool, a valve in-
sert, and an air compressor.

293 Index
Lamps, exterior
Front 221
Rear 222
Lamps, indicator and warning
ABS 196
Airbag Off 56
Battery (Remote control) 75
Brakes 198
CHECK ENGINE 199
Engine diagnostics 199
ESP 194
Fuel reserve 201
Instrument cluster 201
Seat belts 199
Service indicator 185
SRS 52
Turn signals 21
Lamps, malfunction indicator
BAS/ESP 194
Layout of poly-V-belt drive 259
Leather upholstery
Cleaning 192
License plate lamps
Replacing bulbs 222, 226
Light alloy wheels
Cleaning 191Technical data 262
Lighter see Cigarette lighter 143
Lighting 83
Combination switch 85
Daytime running lamp mode 83
Exterior lamp switch 83
Front fog lamps 84
High beam flasher 85
High beams 85
Instrument cluster illumination 88
Interior 86
Low beam 83
Parking lamps 83
Rear fog lamp 84
Trunk 87
Limiting the gear range 95
Limp Home Mode 98
Lock buttons 281
Locking 47, 74
Centrally from inside 80
Driver’s door and trunk in an
emergency 211
Fuel filler flap 169
Global, Remote control 75
Loss of keys 77
Loss of Service and Warranty Information Booklet 257
Low beam headlamps
Replacing bulbs 221, 223
Lowering
Vehicle 242
Lubricants
Technical data 269
M
Main dimensions 267
Maintenance 10, 185
Manual operations
Fuel filler flap 213
Hardtop 215
Interior lighting control 87
Locking the driver’s door and
trunk 211
Unlocking the driver’s door 210
Unlocking the trunk 210
Unlocking transmission selector
lever 214
Manual seat
Adjusting 31
Adjusting backrest tilt 32
Adjusting head restraint height 32
Adjusting seat height 31
Seat fore and aft adjustment 31

296 IndexRemote control
Battery check lamp 75
Changing batteries 212
Checking the batteries 76
Global locking 75
Key 74
Restoring to factory setting 75
Selective setting 75
Unlocking with 28
Remote control with folding key
Locking and unlocking 74
Remote control, key
Factory setting 75
Global unlocking 75
Remote controls
Integrated 153
Remote door unlock
With Tele Aid 151
Remote Vehicle Diagnostics 281
Removing
Vehicle battery 246
Wheel 240
Wiper blade insert 228
Wiper blades 228
Replacing
Backup lamp bulbs 225Brake lamp bulbs 225
Bulbs 221
Front lamp bulbs 223
Front turn signal bulbs 223
Fuses 253
High beam bulbs 223
License plate lamp bulbs 226
Low beam bulbs 223
Parking lamp bulbs 224
Rear fog lamp bulbs 225
Rear lamp bulbs 222, 225
Rear turn signal bulbs 225
Side marker lamp bulbs 225
Standing lamp bulbs 224
Wiper blades 228
Replacing, Bulbs
Xenon* headlamps 223
Reporting
Safety defects 16
Resetting
Service indicator (FSS) 186
Trip odometer 89
Residual heat utilization 107, 281
Residual ventilation 107
REST (Residual engine heat
utilization) 281Restraint system 281
Restraint system see Infant and child re-
straint systems 60
Retractable hardtop 129, 282
Closing 132, 215
Locking after raising/lowering 133
Opening 131, 215
Problems when operating 133
Reverse (manual transmission)
Shifting into 92
Rims 261
Roadside assistance 10
Tele Aid 148
Roll bar 282
Rolling code programming 154
RON 169
RON (Research Octane Number) 282
Rotating wheels 182
Rubber parts
Cleaning 192
S
Safety
Occupant 52
Safety belts see Seat belts 37
Safety defects
Reporting 16