Page 8 of 400

ContentsTechnical data..................................  335
Spare parts service ............................  336
Warranty coverage .............................  337
Loss of Service and Warranty 
Information Booklet......................  337
Identification labels............................  338
Layout of poly-V-belt drive .................  339
C 230 Kompressor Sport..............  339
C 240/C 320 (all models) ............  339
C 32 AMG.....................................  339
Engine ................................................  340
Rims and Tires ...................................  342
Same size tires .............................  343
Mixed size tires ............................  344
Minispare wheel ...........................  345
Electrical system................................  346
Main dimensions................................  347
Weights ..............................................  348Fuels, coolants, lubricants, etc. .........  349
Capacities ....................................  349
Engine oils....................................  352
Engine oil additives ......................  352
Air conditioning refrigerant ..........  352
Brake fluid ....................................  352
Premium unleaded gasoline .........  353
Fuel requirements ........................  353
Gasoline additives ........................  354
Flexible Fuel Vehicles ...................  354
Coolants.......................................  356
Windshield washer and headlamp 
cleaning* system .........................  358
Consumer information .......................  359
Uniform tire quality grading .........  359
Technical terms...............................  361Index.................................................  367 
     
        
        Page 14 of 400

14 IntroductionWhere to find it
Where to find itThis Operator’s Manual is designed to pro-
vide comprehensive support information 
for you, the vehicle operator. Each section 
has its own reference color so you can find 
information quickly.At a glance
Here you will find an overview of all the 
controls that can be operated from the 
driver’s seat.Getting started
Here you will find all the information you 
need for your first drive. You should read 
this section first if this is your first 
Mercedes-Benz vehicle or if you are rent-
ing or borrowing this vehicle.Safety and Security
H e r e  y o u  w i l l  f i n d  d e s c r i p t i o n s  o f  t h e  s a f e t y  
features of your vehicle.
Controls in detail
Here you will find detailed information 
about the equipment installed in your vehi-
cle. This section expands on the “Getting 
started” section and also describes techni-
cal innovations. If you are already familiar 
with the basic functions of your vehicle, 
this section will be of particular interest to 
you.Operation
Here you will find all the information you 
need for the proper operation of your vehi-
cle.Practical hints
This section provides fast assistance for 
dealing with problems you may encounter.
Technical data
All important technical data for your vehi-
cle can be found in this section.Indexes
The glossary provides explanations of the 
most important technical terms.
The table of contents and the index are de-
signed to help you find information quickly 
and easily.
The following publications are part of your 
vehicle documentation:
this Operator’s Manual
the Service Booklet
Separate operating instructions will be 
provided as required depending on the 
equipment options installed in your vehi-
cle. 
     
        
        Page 16 of 400

16 IntroductionOperating safety
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 your 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.  
     
        
        Page 254 of 400

254 OperationEngine compartmentChecking engine oil level with the 
control system
When checking the oil level the vehicle 
must
be parked on level ground
be at normal operating temperature
have been stationary for at least five 
minutes with the engine turned off
To check the engine oil level via the 
multifunction display, do the following:
Turn the SmartKey in the starter switch 
to position2.
The standard display (
page 113) should 
appear in the multifunction display. 
Press buttonk orj on the 
steering wheel until the following 
message is seen in the multifunction 
display:ENGINE OIL LEVEL
MEASURING NOW
MEASURE. CORRECT
ONLY IF VEH. LEVEL
One of the following messages will 
subsequently appear in the indicator:
ENGINE OIL LEVEL
OK
ADD 1.0 Qt. TO
REACH MAX. OIL LEVEL!(Canada: 
1.0 LITER
)
ADD 1.5 Qts. TO
REACH MAX. OIL LEVEL!(Canada: 
1.5 LITERS
)
ADD 2.0 Qts. TO
REACH MAX. OIL LEVEL!(Canada: 
2.0 LITERS
)
If necessary, add engine oil.
For adding engine oil see (
page 255).
More information on engine oil can be 
found in the “Technical data” section 
(
page 349) and (
page 352).
Other display messages
If the SmartKey is not turned to position2 
in the starter switch, the following 
message will appear:
FOR ENGINE OIL LEVEL
SWITCH ON IGNITION!
Switch on the ignition.iIf you want to interrupt the checking 
procedure, press thek orj 
button on the multifunction steering 
wheel. 
     
        
        Page 256 of 400

256 OperationEngine compartmentC 230 Kompressor Sport1Filler cap
Unscrew filler cap1 from filler neck.
Add engine oil as required. Be careful 
not to overfill with oil.
Be careful not to spill any oil when adding. 
Avoid environmental damage caused by oil 
entering the ground or water.
Screw filler cap1 back on filler neck.
C 240 , and C 320 (all models), C 32 AMG1Filler cap
Unscrew filler cap1 from filler neck.
Add engine oil as required. Be careful 
not to overfill with oil.Be careful not to spill any oil when adding. 
Avoid environmental damage caused by oil 
entering the ground or water.
Screw filler cap1 back on filler neck.
More information on engine oil can be 
found in the “Technical data” section 
(
page 349) and (
page 352).
Transmission fluid level
The transmission fluid level does not need 
to be checked. If you notice transmission 
fluid loss or gear shifting malfunctions, 
have an authorized Mercedes-Benz Center 
check the transmission.
!Excess oil must be siphoned or drained 
off. It could cause damage to the 
engine and catalytic converter not 
covered by the Mercedes-Benz Limited 
Warranty.
!Excess oil must be siphoned or drained 
off. It could cause damage to the 
engine and catalytic converter not 
covered by the Mercedes-Benz Limited 
Warranty. 
     
        
        Page 335 of 400
335 Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and Tires
Electrical system
Main dimensions
Weights
Fuels, coolants, lubricants, etc.
Consumer information 
     
        
        Page 336 of 400
336 Technical dataSpare parts service
The “Technical data” section provides the 
necessary technical data for your vehicle.
Spare parts service
All authorized Mercedes-Benz Centers 
maintain a stock of genuine 
Mercedes-Benz parts required for mainte-
nance and repair work. In addition, strate-
gically located parts distribution centers 
provide quick and reliable parts service.
More than 300 000 different spare parts 
for Mercedes-Benz models are available.
Genuine Mercedes-Benz parts are subject 
to stringent quality inspections. Each part 
has been specifically developed, manufac-
tured or selected for and adapted to 
Mercedes-Benz vehicles.
Therefore, genuine Mercedes-Benz parts 
should be installed.
!The use of non-genuine Mercedes-Benz 
parts and accessories not authorized 
by Mercedes-Benz could damage the 
vehicle, which is not covered by the 
Mercedes-Benz Limited Warranty, or 
could compromise the vehicle’s 
durability or safety. 
     
        
        Page 337 of 400
337 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of 
the “warranties” printed in the Service and 
Warranty Information booklet. Your 
authorized Mercedes-Benz Center will ex-
change or repair any defective parts origi-
nally installed in the vehicle in accordance 
with the terms of the following warranties:
New Vehicle Limited Warranty
Emission System Warranty
Emission Performance Warranty
California, Maine, Massachusetts, and 
Vermont Emission Control Systems 
WarrantyReplacement parts and accessories are 
covered by the Mercedes-Benz Spare Parts 
and Accessories warranties, copies of 
which are available at any Mercedes-Benz 
Center.Loss of Service and Warranty 
Information Booklet
Should you lose your Service and Warranty 
Information booklet, have your authorized 
Mercedes-Benz Center arrange for a 
replacement. It will be mailed to you.