2007 MERCEDES-BENZ C230 Fuel requirements

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

302 Operation
Tires and wheels
Always follow the recommended tire
inflation pressure (
page 289) for proper
tire inflation. Uniform Tire Quality Grading Standards (U.S. vehicles)
Tire manufacturers are required to grade
tires based on three performance
factors: treadwear, traction, and
temperature resistance.
1Treadwear
2Traction
3Temperature resistanceQuality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades.
Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1
1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
Warning!G
Never exceed the max. tire inflation
pressure. Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and / or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride com-
fort, wear unevenly, increase stopping dis-
tance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road de-
bris, potholes etc.
iFor illustration purposes only. Actual data
on tires is specific to each vehicle and may vary
from data shown in above illustration.
TreadwearTractionTemperature
200AAA

305 Operation
Tires and wheels
DOT (Department of Transportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross Axle Weight Rating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross Vehicle Weight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the certification label
located on the driver’s door B-pillar.GVWR (G
ross Vehicle Weight Rating)
This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight of
the vehicle including all options, passen-
gers, fuel, and cargo and, if applicable,
trailer tongue load). It is indicated on
certification label located on the driver’s
door B-pillar.
Kilopascal (kPa)
The metric unit for air pressure. There are
6.9 kPa to 1 psi; another metric unit for air
pressure is bars. There are
100 kilopascals (kPa) to 1 bar.
Maximum load rating
The maximum load in kilograms and
pounds that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
total load weight, and production options
weight.Maximum tire inflation pressure
This number is the greatest amount of air
pressure that should ever be put in the tire
under normal driving conditions.
Normal occupant weight
The number of occupants the vehicle is
designed to seat, multiplied by
68 kilograms (150 lbs).
Occupant distribution
The distribution of occupants in a vehicle
at their designated seating positions.
Production options weight
The combined weight of those installed
regular production options weighing over
5 lbs (2.3 kilograms) in excess of those
standard items which they replace, not
previously considered in curb weight or
accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty
battery, and special trim.

325 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
ú(USA only)
±(Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
There is a malfunction in:

The fuel management system

The ignition system

The emission control system

Systems which affect emissions
Such malfunctions may result in excessive
emissions values and may switch the en-
gine to its limp-home (emergency
operation) mode.
Have the vehicle checked as soon as pos-
sible by an authorized Mercedes-Benz
Center.
An on-board diagnostic connector is used
by the service station to link the vehicle to
the shop diagnostics system. It allows the
accurate identification of system malfunc-
tions through the readout of diagnostic
trouble codes. It is located in the front left
area of the footwell next to the parking
brake pedal.
iSome states may by law require you to visit
a workshop immediately as soon as the engine
malfunction indicator lamp comes on. Check lo-
cal requirements.

414 Technical data
Fuels, coolants, lubricants, etc.
In areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles. Refer to Factory
Approved Service Products pamphlet for a
listing of approved product(s). Follow
directions on product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and
may be harmful to engine operation.
Damage or malfunction resulting from
poor fuel quality or from blending
additional fuel additives other than those
tested and approved by us for use on
Mercedes-Benz vehicles listed in the
Factory Approved Service Products
pamphlet are not covered by the
Mercedes-Benz Limited Warranty. Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M)/2. This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not
exceed 10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can
be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.Flexible Fuel Vehicles
(C 230/C 230 Sport only)
Flexible Fuel Vehicles are identified by a
label reading Premium gasoline or E85
only! on fuel filler flap).
These vehicles are designed to operate on
premium unleaded gasoline or Ethanol fuel
(E85), or on any mixture of these two.
Ethanol fuel (E85) is a mixture of approxi-
mately 85% Ethanol and 15% unleaded
gasoline.
Warning!G
Ethanol fuel (E85) and its fumes are highly
flammable, poisonous and burn easily. Etha-
nol fuel can cause serious injuries if ignited
or if you come into contact with it or inhale
fumes of it. Avoid inhalation of Ethanol
fumes and skin contact with Ethanol. Extin-
guish all open flames before fueling. Never
smoke or create sparks close to Ethanol.

416 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:

Corrosion protection

Freeze protection

Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and
corrosion protection.
If the antifreeze mixture is effective
to -22°F (-30°C), the boiling point of the
coolant in the pressurized cooling system
is reached at approx. 266°F (130°C).The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil-over
protection. Refer to Maintenance Booklet
for replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable
if MB 325.0 anticorrosion/antifreeze
solution or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products
pamphlet) are used to renew the coolant
concentration or bring it back up to the
proper level.
To provide important corrosion protection,
the solution must be at least 45%
anticorrosion/antifreeze [equivalent to
freeze protection to approx. -22°F
(-30°C)]. If you use a solution that is more than 55%
anticorrosion/antifreeze [freeze
protection to approx. -49°F (-45°C)], the
engine temperature will increase due to
the lower heat transfer capability of the
solution. Therefore, do not use more than
this amount of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality,
consult an authorized Mercedes-Benz
Center.
!Add premixed coolant solution only. Adding
water and MB 325.0 Anticorrosion/Antifreeze
separately from each other, could cause engine
damage not covered by the Mercedes-Benz
Limited Warranty

425 Index
Fog lamps 112
Message in display 350, 352
Replacing bulbs 368
Four wheel electronic traction system
(4MATIC) with ESP
®88
4MATIC 88
Front air bags 63
Front lamps see Headlamps
Front passenger front air bag 63
Messages in display 337–340
Front passenger front air bag off
indicator lamp 27, 68, 331, 332
Front seat head restraints see
Head restraints
FSS (Flexible Service System)
(Canada vehicles) 310
Fuel 271, 272, 413
Additives 413
Capacities, Fuel tank 411
Cruising range 415
E85 (Ethanol fuel) 411, 415
Filling the tank 271
Fuel filler flap and cap, Multifunction
display messages 326, 349
Fuel gauge 25
Fuel reserve warning lamp 328Requirements, Octane rating 414
Switching (Flexible fuel vehicle) 415
Technical data 411, 413
Fuel consumption statistics
From start 144
Since last reset 145
Fuel filler flap 271
Fuel reserve warning lamp 25
Fuel tank
Capacity 411
Filler flap 271
Fuels, coolants, lubricants etc.
Capacities 409
Fuses 391
Fuse box (main) in
passenger compartment 392
Fuse box in engine compartment 392
Fuse box in trunk 394
Fuse extractor 394
Replacing 391G
Garage door opener* 253
Gasoline also see Fuel
Gasoline see Fuel
GAWR 305
Gear range
Automatic transmission 156
Limiting 156
Shifting into optimal 159
Gear selector lever 46, 47, 150, 151
Cleaning 319
Gearshift pattern 151
Lock 47
Position 152, 153
Position,
Automatic transmission* 121
Shifting procedure 152
Unlocking in an emergency 363
Global locking/unlocking see Key
Glove box 237
Good visibility 160
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 305
GVWR 305

434 Index
T
Tachometer 25, 120
Overspeed range 120
Tail lamps
Cleaning 316
Messages in display 352
Replacing bulbs 368, 373
Tar stains 314
Technical data
Air conditioning refrigerant 412
Brake fluid 412
Coolant 409, 410, 416
Electrical system 407
Engine 401
Engine oil additives 412
Engine oils 412
Flexible fuel vehicles 414
Fuel requirements 414
Fuels 409, 411
Fuels, coolants, lubricants, etc. 409
Gasoline additives 413
Lubricants 409
Premium unleaded gasoline 413
Rims and tires 403
Weights 408
Windshield washer 411Windshield washer and headlamp
cleaning* system 411, 418
Tele Aid* 247, 252
Emergency calls 248
Hands-free microphone 29
Information 251
Initiating an
emergency call manually 249
Message in display 355
Remote door unlock 252
Roadside Assistance 250
SOS button 249
Stolen Vehicle
Recovery services 253
System self-check 248
Telephone* 26, 244
Answering/ending a call 147
Changing mobile phone cradle 246
Compartment 238
Hands-free microphone 29
Inserting in cradle 245
Installing a different
mobile phone cradle 246
Message in display 355
Operation 146, 208
Phone book 147Redialing 148
Removing from cradle 246
Temperature
Display mode 126
Interior temperature 168
Tether attachment points, see
Children in the vehicle
Tie-down rings*, Trunk 236
Tightening torque, Wheel bolts 381
Tilt/sliding sunroof* see
Power tilt/sliding sunroof*
Time 136
TIN 306
Tire and loading Information
Placard 285
Terminology 304
Tires 281, 403
Air pressure 304
Care and maintenance 282
Chains 309
Cleaning 283, 314
Direction of rotation 284
Driving instructions 264