engine MERCEDES-BENZ C230 2007 W203 Owner's Manual

Our company and staff congratulate you
on the purchase of your new
Mercedes-Benz.
Your selection of our product is a demon-
stration of your trust in our company
name. Furthermore, it exemplifies your
desire to own an automobile that will be as
easy as possible to operate and provide
years of service.
Your Mercedes-Benz represents the ef-
forts of many skilled engineers and crafts-
men. To help assure your driving pleasure,
and also the safety of you and your passen-
gers, we ask you to make a small invest-
ment of time:
Please read this manual carefully, then
return it to your vehicle where it will be
handy for your reference.

Please follow the recommendations
contained in this manual. They are de-
signed to acquaint you with the opera-
tion of your Mercedes-Benz.

Please pay attention to the warnings
and cautions contained in this manual.
They are designed to help improve the
safety of the vehicle operator and oc-
cupants.
We extend our best wishes for many miles
of safe, pleasurable driving.
Mercedes-Benz USA, LLC
A DaimlerChrysler Company

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
Power tilt/sliding sunroof* ................ 224
Opening and closing
the power tilt/sliding sunroof ...... 224
Synchronizing
the power tilt/sliding sunroof ...... 226
Driving systems ................................. 227
Cruise control............................... 227
Loading .............................................. 230
Roof rack* .................................... 230
Ski sack* (Canada only) ............... 230
Split rear bench seat* .................. 233
Loading instructions ..................... 235
Cargo tie-down rings* .................. 236
Useful features .................................. 237
Storage compartments................. 237
Cup holders .................................. 239
Ashtrays ....................................... 241
Cigarette lighter ........................... 242
Power outlet ................................. 243
Telephone*................................... 244
Tele Aid* ...................................... 247
Garage door opener* ................... 253
Operation......................................... 259
The first 1 000 miles (1 500 km)......... 260
Driving instructions............................ 261
Drive sensibly – save fuel ............. 261
Drinking and driving ..................... 261
Pedals .......................................... 261
Power assistance ......................... 262
Brakes .......................................... 262
Driving off .................................... 263
Parking ......................................... 264
Tires ............................................. 264
Hydroplaning ................................ 265
Tire traction.................................. 265
Tire speed rating .......................... 266
Winter driving instructions ........... 267
Standing water ............................. 268
Passenger compartment .............. 268
Driving abroad.............................. 268
Control and operation
of radio transmitters .................... 268
Catalytic converter ....................... 269
Emission control .......................... 270
Coolant temperature .................... 270At the gas station .............................. 271
Refueling ...................................... 271
Check regularly
and before a long trip................... 273
Engine compartment ......................... 274
Hood ............................................ 274
Engine oil ..................................... 276
Transmission fluid level................ 277
Coolant level ................................ 278
Battery ......................................... 279
Windshield washer system
and headlamp cleaning system* .. 280
Tires and wheels................................ 281
Important guidelines .................... 281
Tire care and maintenance........... 282
Direction of rotation..................... 284
Loading the vehicle ...................... 284
Recommended
tire inflation pressure ................... 289
Checking tire inflation pressure ... 290
MOExtended system* .................. 294
Tire labeling ................................. 295
Load identification ....................... 299
DOT, Tire Identification Number
(TIN) ............................................. 299
Maximum tire load ....................... 301

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

Contents
Technical data.................................. 395
Parts service ...................................... 396
Warranty coverage ............................. 397
Loss of Service and Warranty
Information Booklet...................... 397
Identification labels............................ 398
Layout of poly-V-belt drive ................. 400
Engine ................................................ 401
Rims and Tires ................................... 403
Same size tires ............................. 404
Mixed size tires ............................ 405
Minispare wheel ........................... 406
Electrical system................................ 407
Main dimensions and weights............ 408
Main dimensions .......................... 408
Weights ........................................ 408Fuels, coolants, lubricants, etc. ......... 409
Capacities .................................... 409
Engine oils.................................... 412
Engine oil additives ...................... 412
Air conditioning refrigerant .......... 412
Brake fluid .................................... 412
Premium unleaded gasoline ......... 413
Gasoline additives ........................ 413
Fuel requirements ........................ 414
Flexible Fuel Vehicles
(C 230/C 230 Sport only) ............ 414
Coolants....................................... 416
Windshield washer and
headlamp cleaning system* ......... 418Index................................................. 419

13 Introduction
Operator’s Manual
Operating your vehicle outside the USA
or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that

service facilities or replacement parts
may not be readily available,

unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,

gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Certain Mercedes-Benz models are avail-
able for delivery in Europe under our
European Delivery Program. For details,
consult an authorized Mercedes-Benz
Center or write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9

16 Introduction
Operating safety
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual

the “Technical data” section in this
manual

traffic rules and regulations

motor vehicle laws and safety
standards
Warning!G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are
interconnected, any modifications made
may produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
See an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore
never turn off the engine while driving.
Warning!G
Heavy blows against the vehicle underbody
or tires/wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage and impair the
operating safety of your vehicle. If you feel a
sudden significant vibration or ride distur-
bance, or you suspect that damage to your
vehicle has occurred, you should turn on
your hazard warning flashers, carefully slow
down, and drive with caution to an area
which is a safe distance from the road.
Inspect the vehicle underbody and
tires/wheels for possible damage. If the
vehicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Center
or other qualified maintenance or repair
facility for further inspection or repairs.
Warning!G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless explicitly instructed to
do so by information on the label itself.
Removal of any of these labels may cause
you and others to be unaware of certain
risks which may result in an accident and/or
personal injury.

25 At a glance
Instrument cluster
ItemPage
1Speedometer with:
vElectronic Stability
Program (ESP®)
warning lamp
85,
327
;Brake warning lamp,
USA only48, 54,
324
3Brake warning lamp,
Canada only48, 54,
324
BLow beam headlamp
indicator lamp50,
109
2LLeft turn signal
indicator lamp50
3Multifunction display
with:121

Trip odometer119

Main odometer121

Gear selector lever
position*47,
121,
153
ItemPage

Program mode* 157

Status indicator (outside
temperature/digital
speedometer)120,
135

Digital clock121
4KRight turn signal
indicator lamp50
5Tachometer with:120
-Antilock Brake
System (ABS)
indicator lamp82,
322
úEngine malfunction
indicator lamp,
USA only325,
326
±Engine malfunction
indicator lamp,
Canada only325,
326
1Supplemental
Restraint System
(SRS) indicator lamp58,
330
ItemPage
328
AHigh beam head-
lamp indicator lamp50,
113
6Fuel gauge with:
Fuel reserve warning lamp328
4The arrow indicates
that the fuel filler cap
is on the rear
right-hand side.
7Coolant temperature gauge119
8Button for:

Resetting trip odometer119

Resetting all settings131

Instrument cluster
illumination118

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.

41 Getting started
Adjusting
With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you:

close the driver’s door with the ignition
switched on,
or

insert the SmartKey into the starter
switch with the driver’s door closed.
With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you:

remove the SmartKey from the starter
switch,
or

open the driver’s door with the
SmartKey in starter switch position0
or1.
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic condi-
tions.
iThe last set steering wheel position is stored
when

the ignition is switched off

the position is stored in memory
(
page 107)
iIf the current position for the steering wheel
is in the uppermost tilt position, the steering
wheel will no longer be able to move upward
when the easy-entry/exit feature is activated.
The adjustment procedure is briefly interrupted
when the engine is started.
Warning!G
Let the system complete the adjustment
procedure before setting the vehicle in mo-
tion. All steering wheel adjustments must be
completed before setting the vehicle in mo-
tion. Driving off with the steering wheel still
adjusting could cause the driver to lose con-
trol of the vehicle.
Warning!G
In case of an accident, liquid electrolyte may
escape the mirror housing if the mirror glass
breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
!Electrolyte drops coming into contact with
the vehicle paint finish can only be completely
removed while in their liquid state and by apply-
ing plenty of water.