2003 MERCEDES-BENZ C320 4MATIC low beam

292 Practical hintsReplacing bulbsReplacing bulbs for front lamps
Halogen headlamps
1Bulb socket for turn signal lamp
2Headlamp cover for high beam head-
lamp, parking and standing lamp
3Headlamp cover for low beam head-
lamp4Low beam headlamp bulb
5High beam headlamp bulb
6Bulb socket for parking and standing
lamp bulb
Low and high beam bulb

Switch off the lights.

Open the hood (
page 235).

Press the clamp and remove headlamp
cover2 or 3.

Pull electrical connector off.

Unclip the retainer springs and take out
the bulb.

Insert the new bulb so that the base
locates in the recess on the holder.

Clip the retainer springs and plug the
connector onto the bulb.

Align headlamp cover2 or 3 and click
into place.
Front turn signal lamp bulb

Switch off the lights.

Open the hood (
page 235).

Twist bulb socket1 counterclockwise
and pull out.

Push bulb into socket, turn counter-
clockwise and remove.

Insert new bulb in socket, push in and
twist clockwise.

Reinsert bulb socket in lamp and twist
clockwise.

341 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 front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed (indicator
lamp
7
located in the center con-
sole 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 side 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.
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 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
vehicle 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.

349 Index
Automatic transmission 138
Accelerator position 143
Emergency operation
(Limp Home Mode) 143
Fluid level 238
Gear ranges 140
Gear selector lever position 141
Gear shifting malfunctions 143
Kickdown 143
Manual shifting 139
One-touch gearshifting 139
Program mode selector switch 142
Selector lever position 138
Starting with 44
Transmission fluid 238
Winter program mode 142
Auxiliary fuse box 313
B
BabySmart
TM
Airbag deactivation system 67, 341
Compatible child seats 67, 341
Self-test 67
Backrest
Folding forward 200
Folding rearward 200
Backrest tilt 33Backup lamps 291, 295
Bulbs 291
BAS 74, 341
Messages in display 263
Batteries, SmartKey
Changing 286, 287
Check lamp 85
Checking 86
Battery discharged
Jump starting 306
Battery, vehicle 240, 303
Charging 304
Disconnecting 304
Messages in display 278
Reconnecting 305
Reinstalling 304
Removing 304
Bi-Xenon headlamps* 341
Bi-Xenon type*
Front lamp bulbs 293
Block heater 246
Blocking
Rear door window operation 71
Bolts
For Minispare wheel 284
For spare wheel 282Brake assist system (BAS) 341
Brake fluid 332
Checking 234
Brake lamp bulbs 291
Brake lamp, high mounted 291
Brake pads
Message in display 265
Brakes 224
Warning lamp 258
Break-in period 222
Bulbs, replacing 290
Additional turn signals 290
Backup lamps 291
Brake lamps 291
Fog lamps 290
Front lamps 290
High beam 290
High mounted brake lamp 291
License plate lamps 291, 295
Low beam 290
Parking lamps 290, 291, 293, 294
Rear fog lamp 291, 295
Side marker lamps 290, 294
Standing lamps 290, 291, 293, 294
Tail lamp assemblies 291, 295
Turn signal lamps 290, 291

358 Index
Exterior lamp switch 101
Front fog lamps 103
High beams 104
Instrument cluster illumination 107
Instruments 107, 108
Interior 105
Locator lighting 103
Low beam 101
Manual headlamp mode 102
Night security illumination 103
Parking lamps 101
Rear fog lamp 103
Settings (control system) 125
Trunk lamp 106
Limiting the gear range 140
Limp Home Mode 143
Loading 196
Instructions 202
Roof rack* 196
Ski sack* 196
Split rear bench seat* 199
Locator lighting 103
Setting 126
Lock button 343Locking 51, 84
Automatic while driving 91
Centrally from inside 92
Fuel filler flap 233
Global, SmartKey 85
Separately the trunk 90
Vehicle in an emergency 286
Loss of keys 87
Loss of Service and Warranty
Information Booklet 317
Low beam headlamps
Messages in display 272
Replacing bulbs 290, 292
Lowering
Vehicle 301
Lubricants
Technical data 329
M
Main dimensions 327
Maintenance 12, 247
Vehicles with E85 fuel 335
Malfunction
Displaying 119
Malfunction memory 118
Calling up 118
Clearing 119Manual headlamp mode 102
Manual operations
Fuel filler flap 287
Interior lighting control 105
Locking the trunk 90
Locking the vehicle 286
Sliding/pop-up roof* 289
Unlocking the driver’s door 285
Unlocking the trunk 91
Unlocking transmission
selector lever 288
Manual seat
Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 33
Adjusting head restraint tilt 34
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 94
Seat fore and aft adjustment 33
Manual transmission 137
Shifting into reverse 137
Starting with 44
MAXCOOL Maximum cooling 160
MB Tex upholstery
Cleaning 253

363 Index
Fuses 313
High beam bulbs 292
High beam bulbs
(xenon-type* headlamps) 293
License plate lamp bulbs 295
Low beam bulbs 292
Parking lamp bulbs 293, 294
Rear fog lamp bulb 295
Rear lamp bulbs 291, 295
Rear turn signal bulbs 295
Side marker lamp bulbs 294
Standing lamp bulbs 293, 294
Wiper blade insert 296
Wiper blades 296
Reporting
Safety defects 18
Reset knob in the
instrument cluster 23, 120
Resetting
All functions (control system) 120
All functions of a submenu 120
Fuel consumption 132, 133
Service indicator (FSS) 248
Trip odometer 109
Residual heat utilization 163
Residual ventilation 163Restraint system see Infant and child
restraint systems 65, 68, 344
Reverse (manual transmission)
Shifting into 137
Rims 322
Roadside Assistance 12
Rolling code programming 219
RON
(Research Octane Number) 234, 344
Roof rack* 196
Rotating wheels 244
Rubber parts
Cleaning 252
S
Safety
Occupant 56
Safety belts see Seat belts 41
Safety defects
Reporting 18
Safety systems
Driving 73
Saving current speed 194
Searching
Radio station 117Seat belt force limiter 64
Seat belt height adjustment 43
Seat belts 61
Cleaning 252
Fastening 41
Height adjustment 43
Proper use of 43, 63
Safety guidelines 59
Warning lamp 259
Seat cushion depth
Adjusting 96
Seat heater*
Switching off 97
Switching on 97
Seats 93
Adjusting 32, 33
Easy entry/exit feature* 93
Heater* 97
Manual seat 33
Multicontour seat* 96
Power seat* 34
Rapid seat heating* 97
Split rear bench seat* 199
Selecting
Display 124