Page 9 of 442

Contents
 Practical hints................................  301
What to do if … ..................................  302
Lamps in instrument cluster ........  302
Lamp in center console................  308
Vehicle status messages in the 
multifunction display ....................  309
Where will I find ...? ...........................  329
First aid kit ...................................  329
Vehicle tool kit .............................  329
Minispare wheel 
(except C 55 AMG).......................  333
Collapsible tire 
(C 55 AMG only)...........................  334
Spare wheel bolts ........................  336
Unlocking/locking in an emergency ..  337
Unlocking the vehicle ...................  337
Locking the vehicle ......................  338
Fuel filler flap ...............................  339
Manually unlocking the 
transmission gear selector lever ..  340
Opening/closing in an emergency.....  341
Power tilt/sliding sunroof* ..........  341Replacing SmartKey batteries ............ 342
SmartKey ...................................... 343
Replacing bulbs .................................. 344
Bulbs ............................................. 344
Replacing bulbs for front lamps .... 347
Replacing bulbs for rear lamps ..... 351
Replacing wiper blades....................... 352
Removing wiper blades ................. 352
Installing wiper blades .................. 352
Flat tire ............................................... 353
Preparing the vehicle .................... 353
Mounting the spare wheel ............ 353
Battery................................................ 360
Disconnecting the battery............. 361
Removing the battery.................... 361
Charging and reinstalling 
the battery .................................... 361
Reconnecting the battery.............. 362Jump starting......................................  363
Towing the vehicle..............................  365
Installing towing eye bolt ..............  368
Fuses.................................................. 369
Aids for changing fuses ................ 369
Main fuse box in passenger 
compartment ................................  370
Fuse box in engine 
compartment ................................  370
Fuse box in trunk ..........................  371 
     
        
        Page 279 of 442

277 Operation
At the gas station
Check regularly and before a long trip
1Coolant
2Brake fluid (fuse box cover removed)
3Windshield washer and headlamp 
cleaning system*Coolant
For normal replenishing, use water (pota-
ble water quality). For more information, 
see “Coolant level” (
page 283) and see 
“Fuels, coolants, lubricants, etc.” 
(
page 387).
Brake fluid
Removing fuse box cover (
page 370).Windshield washer and headlamp 
cleaning system*
For more information on filling up the 
washer reservoir, see “Windshield washer 
system and headlamp cleaning system*” 
(
page 285).
Engine oil level
For more information on engine oil level, 
see “Engine oil” (
page 279).
Vehicle lighting
Check function and cleanliness. For more 
information on replacing light bulbs, see 
“Replacing bulbs” (page 344).
Exterior lamp switch (page 109).
Tire inflation pressure
More information on tire inflation pressure 
(
page 287).
iOpening the hood, see (
page 278).
!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 303). 
     
        
        Page 371 of 442

369 Practical hintsFuses
Fuses
The electrical fuses in your vehicle serve to 
stop the supply of electricity to a device 
that is malfunctioning. This helps to 
prevent damage to the other vehicle 
electronics.
The following aids are available to help you 
change fuses (
page 369):
Fuse chart
Spare fuses
Fuse extractor
The electrical fuses are located in different 
fuse boxes:
Main fuse box in passenger 
compartment (
page 370)
Fuse box in engine compartment 
(page 370)
Fuse box in trunk (
page 371)
Aids for changing fuses
Fuse chart
The fuse chart is found in the main fuse 
box in the passenger compartment 
(page 370). The amperages of the fuses 
are also given there.
Spare fuses
Spare fuses are found in the vehicle tool kit 
in the spare wheel well (
page 329).
Fuse extractor
The fuse extractor is found in the fuse box 
cover in the trunk (
page 371).
Warning!
G
Only use fuses approved for Mercedes-Benz 
with the specified amperage for the system 
in question. Otherwise, a short circuit could 
result and cause a fire.
!Only install fuses that have been tested 
and approved by Mercedes-Benz and 
that have the specified amperage 
rating.
Otherwise, electrical parts or systems 
could be damaged.
Never attempt to repair or bridge a 
blown fuse. Have the cause determined 
and remedied by an authorized 
Mercedes-Benz Center. 
     
        
        Page 372 of 442
370 Practical hintsFusesMain fuse box in passenger compartment
The main fuse box is located in the passen-
ger compartment on the driver’s side of 
the cockpit.
1Main fuse box cover
Opening fuse box
Open the driver’s door.
Pull fuse box cover1 open with a 
screw driver or similar tool (see arrow).
Remove fuse box cover1 rearward.Closing fuse box
Attach fuse box cover1 in the front.
Fold fuse box cover1 in until it 
engages.
Fuse box in engine compartment
The fuse box is located in the engine 
compartment on the driver’s side.
1Cover
2Screws
3RetainerRemoving cover
Twist screws2 
90° counterclockwise.
Lift the rear of cover1.
Slide out retainer3 and remove 
cover1 by pulling towards front.
Opening fuse box
4Fuse box cover
5Clamps
With a dry cloth, remove any moisture 
from the fuse box.
Release clamps5.
Remove fuse box cover4. 
     
        
        Page 373 of 442
371 Practical hintsFuses
Closing fuse box
Make sure that the sealing rubber is 
properly positioned.
Press fuse box cover4 down and 
secure with clamps5.
Installing cover
Insert cover1 sideways into 
retainer3.
Twist screws2 90° clockwise.
Fuse box in trunk
The fuse box is located in the trunk behind 
the left-hand trim panel.
1Trim panel
2Fuse extractor
3Fuse box coverOpening fuse box
Pull away trim panel1.
Remove fuse box cover3.
Closing fuse box
Insert fuse box cover3 until it 
engages.
Insert trim panel1. 
     
        
        Page 416 of 442

414 Index
Releasing trunk lid from inside 95
Remote door unlock 255
Unlocking the vehicle 337
Emergency Tensioning Device see ETD
Emission control 273
Emission control information label 376
Ending
A call (telephone*) 152
Engine
Compartment 278
Starting with automatic 
transmission* 47
Starting with manual 
transmission 46
Starting with the SmartKey, 
automatic transmission* 47
Starting with the SmartKey, 
manual transmission 46
Technical data 378
Turning off with the SmartKey 56
Engine cleaning 297Engine compartment 278
Fuse box in 370
Hood 278
Engine malfunction 
indicator lamp 25, 304
Engine number 376, 400
Engine oil 279
Adding 281
Additives 390
Checking level 277, 280
Consumption 279
Display messages 280, 320–321
Filler neck, 
C 230 Kompressor 
(all models) 282
Filler neck, 
C 240 (all models), 
C 320 (all models), 
C 55 AMG 282
Messages in display 280, 320–321
Viscosity 400Engine oil level
Checking 277, 280
Engine oils 390
ESP 79, 400
Four wheel electronic traction 
system with ESP 82
Messages in display 312–313
Switching off 80
Switching on 81
Warning lamp 25, 306
ETD 67, 400
Safety guidelines 62
Ethanol fuel
At the gas station 275
Requirements 392
Switching fuels 393
Exterior lamp switch 49, 109
Exterior lamps
Delayed shut-off 143
Exterior rear view mirrors
Adjusting 41
Parking position* for 148 
     
        
        Page 418 of 442

416 IndexFuel cap
Message in display 305, 322
Fuel consumption statistics
After start 149
Since last reset 149
Fuel filler flap 275
Locking 275
Opening in an emergency 339
Unlocking 275
Fuel gauge 25
Fuel requirements 391
For ethanol fuel 392
Fuel reserve
Warning lamp 25
Fuel tank
Capacity 388
Filler flap 275
Fuels, coolants, lubricants etc.
Capacities 387
Functions (control system) 122, 125
Resetting 133Fuse box
In engine compartment 370
In trunk 371
Fuse chart 369
Fuse extractor 369, 371
Fuses 369
Aids for changing fuses 369
Fuse box in engine compartment 370
Fuse box in trunk 371
Fuse chart 369
Fuse extractor 369, 371
Main fuse box in 
passenger compartment 370
Spare fuses 369
G
Garage door opener* 256
Gasoline additives 392
Gasoline see Fuel
Gear range 400
Automatic transmission* 159
Limiting 159
Shifting into optimal 158Gear range limit
Canceling 158
Gear selector lever 47, 156
Cleaning 299
Lock 47
Position (Automatic 
transmission*) 121, 160
Position (automatic 
transmission*) 156
Gearshift lever 46, 155
Global
Locking 89
Unlocking 89
Global Positioning System see GPS
Glove box 241
Closing 241
Locking 241
Opening 241
Unlocking 241
Good visibility 168
GPS 400 
     
        
        Page 422 of 442

420 IndexLight sensor 324
Lighter see Cigarette lighter
Lighting 109
Automatic headlamp mode 110
Combination switch 113
Daytime running lamp mode 111
Door entry lamps 116
Exterior lamp switch 109
Front fog lamps 112
High beams 113
Instrument cluster illumination 117
Instruments 117
Interior 115
Locator lighting 112
Low beam 109
Manual headlamp mode 110
Night security illumination 112
Parking lamps 109
Rear fog lamp 113
Settings (control system) 141
Standing lamps 109
Trunk lamp 116Limiting the gear range 159
Limp Home Mode 167
Loading 234
Cargo tie-down rings* 240
Instructions 239
Roof rack* 234
Split rear bench seat* 237
Locator lighting 112
Setting 143
Lock button 401
Locking 54, 88
Automatic while driving 96
Centrally from inside 96
Fuel filler flap 275
Global, SmartKey 89
Glove box 241
Vehicle in an emergency 338
Loss of keys 91
Loss of Service and Warranty 
Information Booklet 375
Low beam headlamps
Indicator lamp 25
Messages in display 324–325
Replacing bulbs 345, 347
Switching on 49Lowering
Vehicle 359
Lubricants
Technical data 387
M
Main dimensions 385
Main fuse box
In passenger compartment 370
Mainodometer 121
Maintenance 12, 292
Vehicles with E85 fuel 393
Maintenance service
Calling up the maintenance 
service indicator 293
Major service (Service B) 292
Minor service (Service A) 292
Overdue 293
Types 293
When due 292
Maintenance service indicator 292
Calling up 293, 294
Clearing 293, 294
Maintenance System 
(U.S. vehicles) 292, 401