2004 MERCEDES-BENZ C320 fuse box

Contents
Practical hints................................ 273
What to do if … .................................. 274
Lamps in instrument cluster ........ 274
Lamp in center console................ 279
Messages in the display ............... 280
Where will I find ...? ........................... 300
First aid kit ................................... 300
Vehicle tool kit ............................. 300
Minispare wheel ........................... 302
Unlocking/locking in an emergency .. 305
Unlocking the vehicle ................... 305
Locking the vehicle ...................... 306
Changing batteries in
the SmartKey ............................... 307
Fuel filler flap ............................... 308
Manually unlocking the
transmission gear selector lever .. 308
Opening/closing in an emergency..... 309
Sliding/pop-up roof* ................... 309Replacing bulbs .................................. 310
Bulbs ............................................. 310
Replacing bulbs for front lamps .... 312
Side marker lamp bulb .................. 314
Replacing bulbs for rear lamps ..... 315
Replacing wiper blades....................... 316
Removing wiper blades ................. 316
Installing wiper blades .................. 316
Flat tire ............................................... 317
Preparing the vehicle .................... 317
Mounting the Minispare wheel...... 317
Battery................................................ 323
Disconnecting the battery............. 324
Removing the battery.................... 324
Charging and reinstalling
the battery .................................... 324
Reconnecting the battery.............. 325Jump starting...................................... 326
Towing the vehicle.............................. 328
Installing towing eye bolt .............. 331
Fuses.................................................. 332
Fuse box in
passenger compartment ............... 332
Fuse box in engine compartment . 333
Auxiliary fuse box in trunk ............ 334

251 Operation
At the gas station
Check regularly and before a long trip
1Coolant level
For more information on coolant, see
“Coolant level” (
page 257).
2Brake fluid (fuse box cover removed)
Removing fuse box cover
(
page 333).
3Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield
washer system and headlamp cleaning
system*” (
page 259).Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 253).
Opening hood (
page 252).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (page 310).
Exterior lamp switch (page 102).
Tire inflation pressure
More information on tire inflation pressure
(
page 261).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 275).

332 Practical hintsFuses
Fuses
Fuse box in passenger compartment
1CoverOpening

Pull cover1 open with a screw driver
or similar tool.

Remove cover rearward.
Closing

Attach cover1 in the front.

Fold cover in until it engages.
Fuse chart
The fuse chart is found in the fuse box in
the passenger compartment. The amper-
ages of the fuses are also given there.
iOnly install fuses that have been tested
and approved by Mercedes-Benz and
that have the specified amperage
rating.
Never attempt to repair or bridge a
blown fuse. Have the cause determined
and remedied by an authorized
Mercedes-Benz Center.

333 Practical hintsFuses
Fuse box in engine compartment
The fuse box is located in the engine
compartment on the left hand side.
1Screw
2Cover
3RetainerRemoving/installing cover

Twist screws1
90° counterclockwise.

Pull up cover2.

Slide out retainer3 and remove cover
by pulling towards front.

Install cover2 in reverse order.Opening fuse box
4Fuse box cover
5Clamps

Release clamps5.

Remove cover4.
Closing fuse box

Ensure that the sealing rubber is
properly positioned.

Press cover4 down and secure with
clamps5.

334 Practical hintsFusesAuxiliary fuse box in trunk
The auxiliary fuse box is located in the
trunk.
1Trim panel
2Cover of auxiliary fuse box
3Special fuse extractorOpening

Pull away trim panel1.

Remove cover2.
Spare fuses
Spare fuses are found in the vehicle tool kit
in the spare wheel well.

370 IndexAutomatic climate control* 162
Activating 163
Adjusting air distribution 166
Adjusting air volume 166
Air recirculation mode 167
Deactivating 163
Defrosting 167
Rear window defroster 153
Residual heat utilization 171
Residual ventilation 171
Setting the temperature 165
Automatic headlamp mode 103
Automatic lighting control
Activating 107
Deactivating 107
Automatic locking when driving 90
Automatic transmission fluid see ATF
Automatic transmission* 142
Accelerator position 147
Comfort program mode 146
Emergency operation
(Limp Home Mode) 147
Fluid level 256Gear ranges 144
Gear selector lever 44
Gear selector lever position 142, 145
Gear shifting malfunctions 147
Kickdown 147
Manual shifting 143
One-touch gearshifting 143
Program mode selector switch 146
Starting with 44
Transmission fluid 256
Auxiliary fuse box 334
B
BabySmart
TM
Airbag deactivation system 66, 361
Compatible child seats 66, 361
Self-test 66
Backrest
Folding forward 213
Folding rearward 213
Backrest contour
Adjusting 97Backrest side bolsters
Adjusting 97
Backrest tilt
Manual seat 33
Power seat* 35
Backup lamps 311, 315
Bulbs 310
BAS 73, 361
Messages in display 281
Batteries, SmartKey
Changing 307
Check lamp 83
Checking 84
Battery discharged
Jump starting 326
Battery, vehicle 258, 323
Charging 324
Disconnecting 324
Messages in display 285
Reconnecting 325
Reinstalling 324
Removing 324

376 IndexE
Easy-entry/exit feature* 92
Activating 134
Interrupting movement 92, 134
Electrical fuses 332
Electrical system
Technical data 346
Electronic Stability Program see ESP
Emergency call system* 223
Emergency calls
Initiating an emergency call 226
Telephone* 198
With Tele Aid* 224
Emergency operation
(Limp Home Mode) 147
Emergency operations
Closing sliding/pop-up roof* 309
Locking the vehicle 306
Opening sliding/pop-up roof* 309
Releasing trunk lid from inside 88
Remote door unlock 230
Unlocking the vehicle 305Emergency Tensioning Device see ETD
Emission control 247
Emission control label 338
Ending
A call (telephone*) 139
Engine
Compartment 252
Starting with
automatic transmission* 44
Starting with
manual transmission 43
Starting with the SmartKey
Automatic transmission* 44
Manual transmission 43
Technical data 340
Turning off with the SmartKey 52
Engine cleaning 269
Engine compartment 252
Fuse box in 333
Hood 252
Engine malfunction
indicator lamp 23, 276Engine number 338, 362
Engine oil 253, 352
Adding 255
Additives 352
Checking level 251, 254
Consumption 253
Display messages 254, 291–292
Filler neck
C 230 Kompressor Sport 256
C 240, C 320, and C 32 AMG 256
Messages in display 254, 291–292
Viscosity 362
Engine oil level
Checking 251, 254
ESP 23, 74, 362
Four wheel electronic
traction system with ESP 77
Messages in display 282–283
Switching off 75
Switching on 76
Synchronizing 282
Warning lamp 277

378 IndexFSS 265, 362
Fuel 250
Additives 354
Cruising range 355
E85 (Ethanol fuel) 355
Fuel reserve warning lamp 278
Gasoline additives 354
Message in display 293
Premium unleaded
gasoline 250, 350, 353
Requirements 353, 354
Reserve warning 23
Switching (Flexible Fuel Vehicle) 354
Technical data 350
Fuel additives 354
Fuel cap
Message in display 293
Fuel consumption statistics
After start 137
Since last reset 137Fuel filler flap 249
Locking 249
Opening in an emergency 308
Unlocking 249
Fuel requirements 353
For ethanol fuel 354
Fuel reserve tank
Message in display 293
Fuel tank
Capacity 350
Filler flap 249
Fuels, coolants, lubricants etc.
Capacities 349
Functions (control system) 114, 117
Resetting 124
Fuse box
Auxiliary in trunk 334
In engine compartment 333
In passenger compartment 332Fuse chart 332
Fuse extractor 334
Fuses 332
Auxiliary fuse box in trunk 334
Fuse box in engine compartment 333
Fuse box in
passenger compartment 332
Fuse chart 332
Fuse extractor 334
Spare fuses 334
G
Garage door opener 27, 231
Gasoline additives 354
Gasoline see Fuel
Gear range 362
Automatic transmission* 144
Limiting 144
Shifting into optimal 143
Gear range limit
Canceling 143