technical data MERCEDES-BENZ C350 2007 W203 User Guide

398 Technical data
Identification labels
1Certification label (on driver’s B-pillar)
The V
ehicle Identification Number (VIN)
can be found in the following locations:

on the certification label.

embossed underneath the carpet in
front of the front passenger seat
(
page 399).

on the lower edge of the windshield
(
page 399).
Example certification label (U.S. vehicles)
2VIN
3Paintwork code
Example certification label
(Canada vehicles)
2VIN
3Paintwork code
iData shown on certification label are for
illustration purpose only. These data are specific
to each vehicle and may vary from data shown in
the illustration. Refer to certification label on
vehicle for actual data specific to your vehicle.

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.

400 Technical data
Layout of poly-V-belt drive
All models
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)

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.

403 Technical data
Rims and Tires
Rims and Tires
!Only use tires which have been tested and
approved for your vehicle by Mercedes-Benz.
Tires approved by Mercedes-Benz are developed
to provide best possible performance in conjunc-
tion with the driving safety systems on your vehi-
cle such as ABS or ESP
®. Tires specially
developed for your vehicle and tested and ap-
proved by Mercedes-Benz can be identified by
finding the following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires

MOE = Mercedes-Benz Original Extended
(tires with limited run-flat characteristics)
original equipment tires. Using tires other
than those approved by Mercedes-Benz may
result in damage that is not covered by the
Mercedes-Benz Limited Warranty.
iFor information on driving with MOExtended
tires, see “MOExtended system*” (
page 382).
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz
Center. A placard with the recommended tire in-
flation pressures is located on the driver’s door
B-pillar. Some vehicles may have supplemental
tire inflation pressure information for driving at
high speeds (
page 290) or for vehicle loads
less than the maximum loaded vehicle condition
(
page 290). If such information is provided, it can be found
on the placard located on the inside of the fuel
filler flap. The tire inflation pressure should be
checked regularly and should only be adjusted
on cold tires. Follow tire manufacturer’s mainte-
nance recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire config-
uration on your vehicle (Appearance Package,
Sport Package etc.), equipping your vehicle with
winter tires approved for your vehicle model may
also require the purchase of two or four wheel
rims of the recommended size for use with these
winter tires. See an authorized Mercedes-Benz
Center for more information.

404 Technical data
Rims and Tires
Same size tires
ModelC 230
C 280
C 280 4MATIC
C 350
C 350 4MATICC 230 Sport
C 350 Sport
Rims (light alloy)7 J x 16 H27.5 J x 17 H2
Wheel offset1.22 in (31 mm)1.42 in (36 mm)
All-season tires1
1Radial-ply tires
205/55 R16 91H M+S -
Winter tires1,2
2Not available as factory equipment.
205/55 R16 91H M+S .225/45 R17 91H M+S .
or
225/45 R17 91H M+S .MOExtended
3
3Must be used in conjunction with Run Flat Indicator* only.

405 Technical data
Rims and Tires
Mixed size tires
ModelC 230 Sport
C 350 Sport
Front axle:
Rims (light alloy)7.5 J x 17 H2
Wheel offset1.42 in (36 mm)
Summer tires1
1Radial-ply tires
225/45 R17 91W
or
225/45 R17 91W MOExtended
2
2Must be used in conjunction with Run Flat Indicator* only.
Rear axle:
Rims8.5 J x 17 H2
Wheel offset1.18 in (30 mm)
Summer tires1,3
3Must not be used with snow chains.
245/40 R17 91W
or
245/40 R17 91W MOExtended
2

406 Technical data
Rims and Tires
Minispare wheel
ModelC 230
C 280
C 280 4MATIC
C 350
C 350 4MATICC 230 Sport
C 350 Sport
Rim (steel)3.5 B x 16 H23.5 B x 17 H2
Wheel offset0.67 in (17 mm)0.67 in (17 mm)
Tire1
1Must not be used with snow chains.
T 125/90 R16 98MT 125/80 R17 99M
!Please compare the recommended tire in-
flation pressure for your vehicle with the tire in-
flation pressure on the yellow label located on
the spare wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the Minis-
pare wheel to the recommended tire inflation
pressure given on the yellow label on the spare
wheel rim.iPlease note that the tire inflation pressure of
the Minispare differs from the tire inflation pres-
sure of the road tires.
Inflate the Minispare wheel to approximately
61 psi (4.2 bar).

407 Technical data
Electrical system
Electrical system
Modelall models
Generator (alternator)14 V/150 A
Starter motor12 V/1.4 kW
Battery12 V/100 Ah
Spark plugsBosch Platin Y 7 MPP 33
NGK PLKR 6A
Electrode gap0.031 in (0.8 mm)
Tightening torque18 – 22 lb-ft (25 – 30 Nm)