2007 MERCEDES-BENZ C350 engine

395 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and Tires
Electrical system
Main dimensions and weights
Weights
Fuels, coolants, lubricants, etc.

399 Technical data
Identification labels
4Carpet
5VIN
Move the front passenger seat to the
rear as far as possible.
Fold carpet4 in direction of arrow.
VIN5 is visible.6Emission control information label,
includes both federal and California
certification exhaust emission
standards
7Vacuum line routing diagram label
8Engine number (engraved on engine)
9VIN (lower edge of windshield)
iWhen ordering parts, please specify vehicle
identification and engine numbers.

401 Technical data
Engine
Engine
ModelC 230 (203.052)1
C 230 Sport (203.052)1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
C 280 (203.054)1
C 280 4MATIC (203.092)1
Engine272272
Mode of operation4-stroke engine, gasoline injection4-stroke engine, gasoline injection
No. of cylinders66
Bore3.46 in (88.00 mm)3.46 in (88.00 mm)
Stroke2.69 in (68.40 mm)3.23 in (82.10 mm)
Total piston displacement152.3 cu in (2 496 cm3)182.8 cu in (2 996 cm3)
Compression ratio11.2:111.3:1
Output acc.
to SAE J 1349201 hp/6 200 rpm2
(150 kW/6 200 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
228 hp/6 000 rpm2
(170 kW/6 000 rpm)
Maximum torque acc.
to SAE J 1349181 lb-ft/2 700 – 5 500 rpm
(245 Nm/2 700 – 5 500 rpm)221 lb-ft/2 700 – 5 000 rpm
(300 Nm/2 700 – 5 000 rpm)
Maximum engine speed6500 rpm6500 rpm
Firing order1-4-3-6-2-51-4-3-6-2-5
Poly-V-belt2404 mm2404 mm

402 Technical data
Engine
ModelC 350 (203.056)1
C 350 Sport (203.056)1
C 350 4MATIC (203.087)1
Engine272
Mode of operation4-stroke engine, gasoline injection
No. of cylinders6
Bore3.65 in (92.90 mm)
Stroke3.38 in (86.00 mm)
Total piston displacement213.5 cu in (3 498 cm3)
Compression ratio10.7:1
Output acc.
to SAE J 1349268 hp/6 000 rpm2
(200 kW/6 000 rpm)
Maximum torque acc.
to SAE J 1349258 lb-ft/2 400 – 5 000 rpm
(350 Nm/2 400 – 5 000 rpm)
Maximum engine speed6 500 rpm
Firing order1-4-3-6-2-5
Poly-V-belt2 404 mm
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the
corresponding data of all special bodies and special equipment.
2Premium fuel required. Performance may vary with fuel octane rating.

409 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz.
Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
Warning!G
Comply with all valid regulations with
respect to handling, storing, and disposing
of service fluids. Otherwise you could
endanger persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct
contact with your eyes or any open wounds.
If a service fluid is swallowed, contact a
physician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filter8.5 US qt (8.0 l)Approved engine oils
Automatic transmissionC 230 (all models)
C280
C 350 (all models)
C2804MATIC
C3504MATIC9.0 US qt (8.5 l)
9.0 US qt (8.5 l)
9.0 US qt (8.5 l)
8.3 US qt (7.8 l)
8.3 US qt (7.8 l)MB Automatic Transmission Fluid
Manual transmissionC 230 Sport
C 350 Sport1.3 US qt (1.2 l)
1.6 US qt (1.5 l)MB Manual Transmission Oil

412 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory Ap-
proved Service Products pamphlet, or con-
tact an authorized Mercedes-Benz Center.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air
conditioning system.
Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere.
Only brake fluid approved by
Mercedes-Benz is recommended. An
authorized Mercedes-Benz Center will
provide you with additional information.
!Using engine oils and oil filters of specifica-
tion other than those expressly required for the
Maintenance System (U.S. vehicles) or FSS
(Canada vehicles), or changing of oil and oil filter
at change intervals longer than those called for
by the Maintenance System (U.S. vehicles) or
FSS (Canada Vehicles) will result in engine or
emission control system damage not covered by
the Mercedes-Benz Limited Warranty.Please follow Maintenance System
(U.S. vehicles) or FSS (Canada vehicles) recom-
mendations for scheduled oil changes. Failure to
do so will result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
Warning!G
Under extremely strenuous operating condi-
tions, this moisture content can lead to the
formation of bubbles in the system, thus re-
ducing the system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Mainte-
nance Booklet for replacement interval.

413 Technical data
Fuels, coolants, lubricants, etc.
Premium unleaded gasolineGasoline additives
A major concern among engine
manufacturers is carbon build-up caused
by gasoline. Mercedes-Benz recommends
only the use of quality gasoline containing
additives that prevent the build-up of
carbon deposits.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to
engine performance problems such as:

Warm-up hesitation

Unstable idle

Knocking/pinging

Misfire

Power loss
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious per-
sonal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors can be damaging to
your health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded is not available and
low octane fuel is used, follow these precau-
tions:

Have the fuel tank only partially filled with
unleaded regular and fill up with premium
unleaded as soon as possible.

Avoid full throttle driving and abrupt acceler-
ation.

Do not exceed an engine speed of 3 000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.

Do not exceed2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.

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.