2004 MERCEDES-BENZ C320 4MATIC WAGON airbag off

104 Controls in detailLightingSwitching on high beams
Turn exterior lamp switch to
positionB or toU
(page 100).

Push combination switch in direction of
arrow1.
The high beam indicatorA on the
instrument cluster comes on.
High beam flasher

Pull combination switch briefly in
direction of arrow2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition switched on or off. It is
activated automatically when an airbag is
deployed.
The switch is located on the center con-
sole.
1Hazard warning flasher switchSwitching on the hazard warning
flasher

Press hazard warning flasher switch.
All turn signals will flash.
Switching off the hazard warning
flasher

Press hazard warning flasher switch
again.iWith the hazard warning flasher acti-
vated and the combination switch set
for either left or right turn, only the re-
spective left or right turn signals will
operate when the SmartKey in the
starter switch is in position1 or2.iIf the hazard warning flasher was
activated automatically, also press
switch1 to switch off the hazard
warning flasher.

279 Practical hints
What to do if …
Lamp in center consoleProblem
Possible cause
Suggested solution
PASS. AIRBAG OFF
The indicator lamp comes on.
A BabySmart
TM1
child seat is installed
on the front passenger seat. There-
fore the passenger front airbag is
switched off.
1BabySmart
TM is a trademark of Siemens Automotive Corp.
The system is malfunctioning when
there is no BabySmart
TM child seat
installed on the front passenger seat.

Have the system checked as soon
as possible by an authorized
Mercedes-Benz Center.
The indicator lamp does not
come on with a BabySmart
TM
child seat properly installed
on the front passenger seat.The system is malfunctioning.

Make sure there is nothing
between seat cushion and child
seat and check installation of the
child seat.

If the lamp remains out, have the
system checked as soon as
possible by an authorized
Mercedes-Benz Center.
Do not use the BabySmart
TM
restraint to transport children on
the front passenger seat until the
system has been repaired.

357 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
TM1
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is
installed on the front passenger seat.
The system will automatically deacti-
vate the passenger front airbag when
such a seat is properly installed
(PASS. AIRBAG OFF indicator lamp
located in the center console comes
on). 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
passenger front airbag if a
BabySmartTM compatible child seat is
installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking
situations. The system is activated
when it senses an emergency based on
how fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more
intense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service
center, which can help you with any
questions about your vehicle and
provide assistance in the event of a
breakdown.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping depending on
vehicle settings and/or ambient
conditions.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the
passenger compartment needed for
vehicle operation and monitoring.
1BabySmart
TM is a trademark of Siemens
Automotive Corp.

360 Technical termsPower train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Program mode selector switch
Used to switch the automatic trans-
mission between standard operationS
and comfort operationC.Remote Vehicle Diagnostics
Transmission of vehicle data and
current location to the Mercedes-Benz
Customer Assistance Center for
subscribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the
vehicle interior for a short time after
the engine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As inde-
pendent systems, their protective
functions complement one another.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 deto-
nation (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 gear
selector lever from being moved out of
positionP without SmartKey turned
and brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning
device and airbags. Though indepen-
dent systems, they are closely inter-
faced to provide effective occupant
protection.

364 Index
Seats 32, 33
Steering column height 38
Steering column length 38
Steering wheel 36
Air conditioning (cooling)
Turning off 156, 166
Turning on 156, 166
Air conditioning refrigerant 348
Air distribution
Adjusting 153, 162
Air pressure see Tire inflation pressure
Air recirculation mode 154, 163
Activating 154, 163
Deactivating 155, 164
Air vents, rear passenger compartment
Adjustable 157, 168
Air volume
Adjusting 153, 162Airbags 57
BabySmart
TM deactivation
system 68
Children 58
Front 61
Passenger 61
Side impact 62
Window curtain 62
Alarm
Audible 73, 81
Canceling 81
Visual 80
Alarm system
Anti-theft 80
Alignment bolt 357
Alignment bolt (vehicle tool kit) 320
Anticorrosion/antifreeze 353
Antiglare
Automatic 146
Manual 146
Antilock brake system (ABS) 357Anti-theft alarm system
Arming 80
Canceling alarm 81
Disarming 81
Anti-theft systems 80
Anti-theft alarm system* 80
Immobilizer 80
Tow-away alarm 81
Aquaplaning see Hydroplaning
Armrest
Storage compartment in front of 217
Storage spaces 218
Ashtray 219
ATF (automatic transmission fluid) 256
AUDIO menu 116
Selecting radio station 117
Audio system 169
Audio and telephone, operation 169
Button and soft key operation 172
Cassette operation 182
CD operation 185
Operating and display elements 170

365 Index
Operating safety 169
Operation 172
Radio operation 175
Switching off 172
Switching on 172
Telephone operation 189
Automatic antiglare
for rear view mirror 146
Automatic central locking
Activating/deactivating
(control system) 131
Automatic climate control* 158
Activating 159
Adjusting air distribution 162
Adjusting air volume 162
Air recirculation mode 163
Deactivating 159
Defrosting 163
Rear window defroster 149
Residual heat utilization 167
Residual ventilation 167
Setting the temperature 161Automatic headlamp mode 101
Automatic lighting control
Activating 105
Deactivating 105
Automatic locking when driving 88
Automatic transmission 139
Accelerator position 144
Comfort program mode 143
Emergency operation
(Limp Home Mode) 144
Fluid level 256
Gear ranges 141
Gear selector lever position 139, 142
Gear shifting malfunctions 144
Kickdown 144
Manual shifting 140
One-touch gearshifting 140
Program mode selector switch 143
Starting with 43
Transmission fluid 256
Auxiliary fuse box 334B
BabySmart
TM
Airbag deactivation system 68
Compatible child seats 68
Self-test 68
BabySmart
TM airbag
deactivation system 357
BabySmartTM compatible
child seats 357
Backrest
Folding forward 211
Folding rearward 212
Backrest tilt 33
Backup lamps 311, 316
Bulbs 311
BAS 75, 357
Messages in display 281
Batteries, SmartKey
Changing 306
Check lamp 85
Checking 86

367 Index
Storage compartment inside 209
Tailgate 87
Tie-down rings 214
Cargo tie-down rings 214
Cassette operation
Playing cassettes 182
Cassette player
Operating 119
Catalytic converter 246
CD changer* 185
CD operation 185
CD player
Operating 118
Center console 25
Lower part 26
PASS. AIRBAG OFF
indicator lamp 279
Upper part 25
Centigrade
Setting temperature units 125Central locking
Automatic 88
From inside 89
Switch 89
Switching on/off
(control system) 131
Unlocking from inside 89
Central locking switch 89
Certification label 338
Changing
Key setting 132
Changing CDs 185
Charcoal filter 165
Charging
Vehicle battery 325
CHECK ENGINE
malfunction indicator lamp 23, 276
Checking
Coolant level 257
Oil level 251, 254
Tire inflate pressure 251
Vehicle lighting 251Child safety 65
Airbags 58
Infant and child
restraint systems 62, 65
LATCH-type child seat anchors 71
Child safety switch see
Blocking of rear door window operation
Cigarette lighter 220
Cleaning
Cloth upholstery 272
Cup holder 271
Gear selector lever 271
Hard plastic trim items 271
Headlamps 145
Headliner and shelf
below rear window 271
Instrument cluster 270
Leather upholstery 271
Light alloy wheels 270
MB Tex upholstery 272
Plastic and rubber parts 272
Seat belts 271
Steering wheel 271

376 IndexL
Labels, identification 338
Lamp bulbs, exterior 310
Lamps, exterior
Front 310
Light sensor 294
Messages in display 293–296
Rear 311
Lamps, indicator and warning
ABS 274
Airbag Off 61
Battery (SmartKey) 85
Brakes 275
CHECK ENGINE 276
Coolant 287
Engine diagnostics 276, 278
ESP 277
Fuel reserve 278
Instrument cluster 274–278
Seat belts 278
Service indicator 265
SRS 57
Turn signals 23Language
Multifunction display 126
Setting 126
LATCH-type child seat anchors 71
Folding back 71
Layout of poly-V-belt drive 339
Leather upholstery
Cleaning 271
License plate lamps
Messages in display 294
Replacing bulbs 311, 316
Light alloy wheels
Cleaning 270
Technical data 342
Light sensor 294
Lighter see Cigarette lighter
Lighting 100
Automatic headlamp mode 101
Cargo compartment 106
Combination switch 104
Daytime running lamp mode 102
Door entry lamps 106
Exterior lamp switch 100Front fog lamps 102
High beam flasher 104
High beams 104
Instrument cluster illumination 107
Interior 105
Locator lighting 102
Low beam 100
Manual headlamp mode 101
Night security illumination 102
Parking lamps 100
Rear fog lamp 103
Settings (control system) 127
Limiting the gear range 141
Limp Home Mode 144
Loading 205
Cargo tie-down rings 214
Instructions 213
Roof rack 205
Ski sack* 205
Split rear bench seat 211
Locator lighting 102
Setting 128