2003 MERCEDES-BENZ S430 4MATIC mechanical key

326 Practical hintsUnlocking/locking in an emergency
Unlocking/locking in an emergencyUnlocking the vehicle
Unlocking the driver’s door
If you are unable to unlock the driver’s
door with the SmartKey, open the door
with the mechanical key as follows:
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row and slide the mechanical key2 out
of the housing.

Unlock the door with the mechanical
key. To do so, push the mechanical key
into the lock until it stops and turn it
counterclockwise to position1.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button
Œ
or
‹
on the
SmartKey.


Insert the SmartKey in the starter
switch.


If KEYLESS-GO* card present,
press the KEYLESS-GO* start/stop
button (
page 33).

327 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
If you are unable to unlock the trunk with
the SmartKey, open the trunk with the me-
chanical key as follows:Trunk lock
Insert the mechanical key into the
trunk lid lock.

Turn the mechanical key counterclock-
wise to position1.

Press button2.
The trunk lid swings open.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey or the KEYLESS-GO* card,
lock it with the mechanical key as follows:
Close the passenger doors and the
trunk lid.

Press the central locking switch in the
center console (
page 103).

Check to see whether the locking knob
on the passenger door is still visible. If
necessary push it down manually.

Lock the driver’s door with the me-
chanical key.

Lock the trunk lid if necessary with the
mechanical key (
page 326).
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
A minimum height clearance of 6 ft.
(1.85 m) is required to open the trunk
lid.iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button
Œ
or
‹
on the
SmartKey.


Insert the SmartKey in the starter
switch.


If KEYLESS-GO* card present,
press the start/stop button
(page 33).

328 Practical hintsUnlocking/locking in an emergencyChanging batteries
If the batteries in the SmartKey or the
KEYLESS-GO* card are discharged, the ve-
hicle can no longer be locked or unlocked.
It is recommended to have the batteries re-
placed at an authorized 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.SmartKey
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Remove mechanical key1.

Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
SmartKey housing in direction of ar-
row.

Remove the batteries.
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.
The required replacement batteries are
available at any authorized
Mercedes-Benz Center.

329 Practical hints
Unlocking/locking in an emergency
3Battery
4Contact spring
Using a lint-free cloth, insert new bat-
teries under the contact spring with the
plus (+) side facing up.

Return battery compartment into hous-
ing until it locks into place.KEYLESS-GO* card
1Battery cover
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Pry open cover 1 (e.g. by using a nar-
row blade screwdriver).

Remove the batteries.

Install new batteries as indicated by
the “+” and “-” markings in the
KEYLESS-GO card.

Replace battery cover 1.
Fuel filler flap
In an emergency, the fuel filler flap can be
opened from the trunk. The release lever is
located on the right-hand side in the trunk.
1Release knob
Open the trunk with the mechanical
key (
page 326).

Remove the trim inside the trunk on the
right-hand side.

Pull release lever1 in the direction of
the arrow.
The fuel filler flap can be opened.

397 Index
Rolling code programming 246
Interior lighting 124
Activating automatic control 125
Deactivating automatic control 125
Delayed shut-off 153
Manual operation 125
Interior storage spaces 224
Cup holder 229
Glove box 224
Parcel net 232
Storage compartment in front of arm-
rest 225, 226, 227, 228
J
Jump starting 347
K
Key dependency memory
Settings 156
Key see SmartKey 30, 52
Key, mechanical 326
Key, SmartKey
Positions in starter switch 31
KEYLESS-GO* 383
Activating ignition with 33
Closing side windows 93
Closing sliding/pop-up roof 93Closing sliding/pop-up roof with 190,
194
Closing windows with 190, 194
Locking the vehicle 93
Loss of KEYLESS-GO card 94
Messages in display 303
Starting the engine 43
Turning off engine 53
Unlocking with 32
KEYLESS-GO* card 89
Checking the batteries 92
Checking vehicle lock status 93
Factory setting 91
Global locking 91
Global unlocking 92
Loss of 94
Messages in display 303
Reprogramming 91
Unlocking 89
Keys 86
Kickdown 165, 383
Kilometers/miles in speedometer 149
Km/h or mph in speedometer 149L
Lamp bulbs, exterior 331
Lamps, exterior
Front 331
Light sensor 312
Messages in display 314
Rear 332
Lamps, indicator and warning
ABS 291
Airbag Off 61
Battery (SmartKey) 87
Brakes 293
CHECK ENGINE 294
Coolant 304
DTR* 201
Engine diagnostics 294
ESP 290
Fuel reserve 294
Instrument cluster 290–294
Seat belts 294
Service indicator 280
SRS 57
Language
Multifunction display 150
Setting 150
LATCH child seat anchors 72

398 IndexLayout of poly-V-belt drive 361
Leather upholstery
Cleaning 287
Lever
For cruise control 203
License plate lamps
Replacing bulbs 332, 336
Light alloy wheels
Cleaning 286
Light sensor 312
Lighter see Cigarette lighter 233
Lighting 120
Automatic headlamp mode 121
Combination switch 123
Daytime running lamp mode 122
Exterior lamp switch 120
Front fog lamps 122
High beam flasher 123
High beams 123
Instrument cluster illumination 127
Interior 124
Locator lighting 122
Low beam 120
Manual headlamp mode 121
Night security illumination 122
Parking lamps 120Rear fog lamp 123
Settings (control system) 150
Limiting the gear range 162
Limp Home Mode 165
Loading 222
Cargo tie-down hooks 223
Instructions 222
Roof rack 222
Locator lighting 122
Setting 151
Lock button 383
Lock buttons 383
Door handle (KEYLESS-GO*) 53
Locking 50, 86
Fuel filler flap 261
Global (KEYLESS-GO* card) 91, 92
Global, SmartKey 87
The vehicle with KEYLESS-GO* 93
Trunk lid, separately 98
Vehicle in an emergency 327
Loss of keys 89, 94
Low beam headlamps
Messages in display 313, 314
Replacing bulbs 331
Lowering
Vehicle 342Lumbar support adjustment 104
M
Main Dimensions 369
Maintenance 12, 280
Malfunction
Displaying 145
Malfunction memory 145
Calling up 145
Manual headlamp mode 121
Manual operations
Fuel filler flap 329
Interior lighting control 125
Locking the vehicle 327
Sliding/pop-up roof 330
Unlocking the driver’s door 326
Unlocking the trunk lid 327
Manual shift program S 55 AMG 166
Massage function 109
MAXCOOL
Maximum cooling 179
Mechanical key 326
Memory function 117, 383
Recalling positions from memory 118
Storing exterior rear view mirror park-
ing positions 118
Storing key dependent settings 118