2007 MERCEDES-BENZ C280 unlocking

Contents
Introduction.......................................... 9
Product information ................................ 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees
of Mercedes-Benz automobiles ...... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership.... 12
Operating your vehicle
outside the USA or Canada ............ 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16
Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects...................... 18
Reporting Safety Defects ............... 18
Vehicle data recording ......................... 19
Information regarding
electronic recording devices .......... 19At a glance.......................................... 21
Cockpit ................................................. 22
Instrument cluster ................................ 24
Multifunction steering wheel ................ 26
Center console ..................................... 27
Upper part ...................................... 27
Lower part ...................................... 28
Overhead control panel ........................ 29
Door control panel................................ 30Getting started................................... 31
Unlocking ............................................. 32
Unlocking with the SmartKey ......... 32
Starter switch positions .................. 32
Adjusting .............................................. 34
Seats .............................................. 34
Steering wheel ................................ 38
Mirrors ............................................ 41
Driving .................................................. 43
Fastening the seat belt ................... 43
Starting the engine ......................... 46
Parking brake ................................. 48
Driving ............................................ 48
Switching on headlamps ................. 50
Turn signals .................................... 50
Windshield wipers ........................... 51
Problems while driving.................... 53
Parking and locking .............................. 54
Parking brake ................................. 54
Switching off headlamps................. 55
Turning off engine ........................... 55
Releasing seat belts........................ 56
Locking ........................................... 56

Contents
Safety and Security........................... 57
Occupant safety................................... 58
Air bags .......................................... 59
Occupant Classification System ..... 64
Seat belts ....................................... 69
Active head restraint ...................... 73
Children in the vehicle .................... 74
Blocking of
rear door window operation ........... 80
Panic alarm* ........................................ 81
Activating ....................................... 81
Deactivating ................................... 81
Driving safety systems ......................... 82
ABS ................................................ 82
BAS ................................................ 84
ESP
®............................................... 85
Four wheel electronic traction
system (4MATIC) with the ESP
®..... 88
Anti-theft systems................................ 89
Immobilizer..................................... 89
Anti-theft alarm system* ................ 89
Controls in detail............................... 91
Locking and unlocking ......................... 92
SmartKey ....................................... 92
Checking the batteries ................... 95
Loss of SmartKey
or mechanical key .......................... 95
Opening the doors from the inside . 96
Opening the trunk .......................... 96
Closing the trunk............................ 97
Trunk emergency release ............... 98
Valet locking .................................. 99
Automatic central locking .............. 99
Locking and unlocking
from the inside ............................. 100
Seats ................................................. 101
Front seat active head restraints . 101
Rear seat head restraints ............. 101
Lumbar support............................ 105
Multicontour seats*
(Canada only) ............................... 105
Seat heating* ............................... 106
Memory function* ............................. 107
Storing positions into memory ..... 108
Recalling positions from memory . 108Lighting ............................................. 109
Exterior lamp switch .................... 109
Combination switch ..................... 113
Corner-illuminating front
fog lamps* (C 230 (Canada only),
C 280, C 350 and models
with 4MATIC: with
Bi-Xenon* headlamps)................. 113
Hazard warning flasher ................ 115
Interior lighting ............................ 116
Door entry lamps ......................... 117
Trunk lamp ................................... 117
Instrument cluster ............................. 118
Adjusting
instrument cluster illumination .... 118
Coolant temperature gauge ......... 119
Resetting trip odometer ............... 119
Tachometer.................................. 120
Outside temperature indicator ..... 120
Control system .................................. 121
Multifunction display.................... 121
Multifunction steering wheel........ 122
Menus .......................................... 124
Standard display menu ................ 126
AUDIO menu ................................ 127
NAV* menu .................................. 129

Contents
Maximum tire inflation pressure .. 301
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 302
Tire ply material ........................... 304
Tire and loading terminology ........ 304
Rotating tires ............................... 307
Winter driving .................................... 308
Winter tires .................................. 308
Block heater (Canada only) .......... 309
Snow chains................................. 309
Maintenance ...................................... 310
Maintenance service indicator
message....................................... 310
Calling up the maintenance
service indicator display............... 312
Resetting the
maintenance service indicator ..... 312
Vehicle care ....................................... 313
Cleaning and care of the vehicle .. 313
Practical hints.................................. 321
What to do if … ................................... 322
Lamps in instrument cluster ......... 322
Lamp in center console................. 331
Vehicle status messages
in the multifunction display........... 333
Where will I find ...? ............................ 356
First aid kit .................................... 356
Vehicle tool kit .............................. 356
Minispare wheel............................ 359
Spare wheel bolts ......................... 360
Unlocking/locking in an emergency... 361
Unlocking the vehicle.................... 361
Locking the vehicle ....................... 362
Manually unlocking the
transmission gear selector lever ... 363
Opening/closing in an emergency ..... 364
Power tilt/sliding sunroof* ........... 364
Resetting activated head restraints .... 365
Resetting
activated head restraints .............. 365
Replacing SmartKey batteries ............ 366
SmartKey ...................................... 366Replacing bulbs .................................. 367
Bulbs............................................. 368
Replacing bulbs for front lamps .... 370
Replacing bulbs for rear lamps ..... 373
Replacing wiper blades ...................... 375
Removing and installing
wiper blades ................................. 375
Flat tire............................................... 377
Preparing the vehicle .................... 377
Mounting the Minispare wheel...... 377
MOExtended system* ................... 382
Battery ............................................... 383
Disconnecting the battery ............ 384
Removing the battery ................... 384
Charging and
reinstalling the battery.................. 385
Reconnecting the battery ............. 385
Jump starting...................................... 386
Towing the vehicle.............................. 388
Installing towing eye bolt .............. 390
Fuses.................................................. 391
Main fuse box
in passenger compartment ........... 392
Fuse box
in engine compartment................. 392
Fuse box in trunk .......................... 394

27 At a glance
Center console
Center console
Upper partItemPage
1Seat heating*, driver’s side106
2Rear window sunshade
switch*162
3ESP® control switch85
4Hazard warning flasher
switch – switching on/off115
5Central locking switch100
Central unlocking switch100
6Switch for folding back rear
seat head restraints103
7Anti-theft alarm system
indicator lamp*90
ItemPage
8Seat heating*, passenger
side106
9Front passenger front
air bag off indicator lamp68,
332,
339
aAudio system,187
or
COMAND* (see separate
operating instructions)
bAutomatic climate control*174
Climate control164
Rear window defroster163

31 Getting started
Unlocking
Adjusting
Driving
Parking and locking

32 Getting started
The “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section (
page 92) will provide you
with further information. The correspond-
ing page references are located at the end
of each segment.
Unlocking
Unlocking with the SmartKey
SmartKey with remote control
1‹Lock button
2ŠOpening button for trunk
3ŒUnlock button
4ÂPanic button* (
page 81)
Press unlock buttonΠon the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system* is
disarmed.
Get in the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 92).
Starter switch positions
iCanada only:
Only vehicles equipped with an anti-theft alarm
system* have SmartKeys with integrated panic
button*4.
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. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.

33 Getting started
Unlocking
SmartKey
Starter switch
0For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical
consumers, such as seat adjustment2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except low beam headlamp
indicator lamp, high beam headlamp in-
dicator lamp, and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (page 322).
3Starting position
iWhen you switch on ignition, the indicator
and warning lamps (except low beam headlamp
indicator lamp, high beam headlamp indicator
lamp, and turn signal indicator lamps unless ac-
tivated) in the instrument cluster come on. The
indicator and warning lamps (except low beam
headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps if
activated) will go out when the engine is running.
This indicates that the respective systems are
operational.
iVehicles with automatic transmission*:
The SmartKey can only be removed from the
starter switch with the gear selector lever in
positionP.
iIf the SmartKey is left in starter switch
position0 for an extended period of time, it can
no longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
SmartKey from starter switch and reinsert.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.

Check the battery and charge it if necessary
(
page 383).

Get a jump start (page 386).
To prevent accelerated vehicle battery discharge
or a completely discharged battery, always re-
move the SmartKey from the starter switch when
the engine is not in operation.

56 Getting started
Parking and locking
Releasing seat belts
Press the seat belt release button
(
page 44).
Allow the retractor to completely
rewind the seat belt by guiding the
latch plate.
Locking
Exit the vehicle and close all doors and
the trunk.
Press lock button‹ on the
SmartKey (
page 32).

All turn signal lamps flash three
times.

An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
page 93).

The locking knobs in the doors
move down.

The anti-theft alarm system* is
armed.
For more information, see “Locking and
unlocking” (
page 92).
!Make sure the seat belt retracts fully so that
the seat belt and/or latch plate cannot get
caught or pinched in the door or in the seat
mechanism. This can damage the seat belt and
impair the effectiveness of the seat belt, and/or
cause damage to the door and/or door trim pan-
el. Such damage is not covered by the
Mercedes-Benz Limited Warranty.
Damaged seat belts must be replaced. Contact
an authorized Mercedes-Benz Center.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
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. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
iIf you hear a warning signal you have
forgotten to switch off the headlamps before
opening the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.