2006 MERCEDES-BENZ C230 torque

335 Operation
Tires and wheels
Rotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 307).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer’s recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 307).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.For information on wheel change, see the
“Practical hints” section (
page 383) and
(
page 406).
Warning!
G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 lb-ft (110 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.

410 Practical hintsFlat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.Lowering the vehicle

Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.

Remove the jack.
1 - 5Wheel bolts

Tighten the five wheel bolts evenly,
following the diagonal sequence
illustrated (1to5), until all bolts are
tight. Observe a tightening torque
of 80 lb-ft (110 Nm).Before storing the jack, it should be fully
collapsed, with handle folded in (storage
position) (
page 385).

Store the jack and the other vehicle
tools in the trunk.
Warning!
G
Only use genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque
of 80 lb-ft (110 Nm).

430 Technical dataEngineModel
C 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
Engine
272
272
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
6
6
Bore
3.46 in (88.00 mm)
3.46 in (88.00 mm)
Stroke
2.69 in (68.40 mm)
3.23 in (82.10 mm)
Total piston displacement
152.3 cu in (2 496 cm
3)
182.8 cu in (2 996 cm
3)
Compression ratio
11.2:1
11.1:1
Output acc.
to SAE J 1349
201 hp/6 200 rpm
2
(150 kW/6 200 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
228 hp/6 000 rpm
2
(170 kW/6 000 rpm)
Maximum torque acc.
to SAE J 1349
181 lb-ft/2 700 – 5 000 rpm
(245 Nm/2 700 – 5 000 rpm)
221lb-ft/2700–5000rpm
(300 Nm/2 700 – 5 000 rpm)
Maximum engine speed
6500 rpm
6500 rpm
Firing order
1-4-3-6-2-5
1-4-3-6-2-5
Poly-V-belt
2404 mm
2404 mm

431 Technical data
Engine
Model
C 350 (203.056)
1
C 350 Sport (203.056)
1
C 350 4MATIC (203.087)
1
Engine
272
Mode of operation
4-stroke engine, gasoline injection
No. of cylinders
6
Bore
3.65 in (92.90 mm)
Stroke
3.38 in (86.00 mm)
Total piston displacement
213.5 cu in (3 498 cm
3)
Compression ratio
10.5:1
Output acc.
to SAE J 1349
268 hp/6 000 rpm
2
(200 kW/6 000 rpm)
Maximum torque acc.
to SAE J 1349
258 lb-ft/3 000 rpm
(350 Nm/3 000 rpm)
Maximum engine speed
6700 rpm
Firing order
1-4-3-6-2-5
Poly-V-belt
2404 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.

437 Technical data
Electrical system
Electrical system
Model
all models
Generator (alternator)
14 V/150 A
Starter motor
12 V/1.4 kW
Battery
12 V/100 Ah
Spark plugs
Bosch Platin Y 7 MPP 33
NGK PLKR 6A
Electrode gap
0.031 in (0.8 mm)
Tightening torque
18–22lb-ft (25–30Nm)

452 Technical termsMON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a
gasoline’s ability to resist undesired
detonation (knocking). The average of
both the MON (Motor Octane Number)
and ->RON (Research Octane Number)
is posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Display field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel
Steering wheel with buttons for
operating the control system.
Normal occupant weight
(
page 332)OCS
(O
ccupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Occupant distribution
(
page 332)
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Production options weight
(
page 333)
Program mode selector switch
Used to switch the automatic
transmission* between standard
operationS and comfort operationC.

454 Technical termsTelematics*
A combination of the terms “tele-
communications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(T
ire I
dentification N
umber)
(
page 333)
Tire load rating
(page 333)Tire ply composition and material used
(
page 333)
Tire speed rating
(page 333)
Traction
(page 334)
Tread
(page 334)
Treadwear indicators
(page 334)Uniform Tire Quality Grading Standards
(
page 334)
Vehicle capacity weight
(page 334)
Vehicle maximum load on the tire
(page 334)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.

470 Index
Windshield washer 441
Windshield washer and headlamp
cleaning* system 441, 448
Tele Aid* 265, 271, 453
Emergency calls 267
Hands-free microphone 29
Information 270
Initiating an emergency call
manually 268
Message in display 382
Remote door unlock 272
Roadside Assistance 268
SOS button 268
Stolen Vehicle Recovery
services 273
System self-check 266
Telematics* 454
Telephone* 26, 264
Answering/ending a call 158
Hands-free microphone 29
Message in display 382
Operation 157, 225
Phone book 158
Redialing 159Temperature
Display mode 135
Interior temperature 180
Temperature,Tires 315
Tether attachment points, see
Children in the vehicle
Tie-down rings*, Trunk 256
Tightening torque, Wheel bolts 410, 454
Tilt/sliding sunroof* see Power tilt/sliding
sunroof*
Time 145
TIN 333
Tire and Loading Information
Placard 308
Tire and loading Information
Terminology 331
Tires 304, 432
Air pressure 331
Care and maintenance 305
Chains 337
Cleaning 306, 342
Direction of rotation 307
Driving instructions 286
Important notes, Tire inflation
pressure 315
Inflation pressure 296, 314, 316Information Placard 308
Inspection 305
Load rating 333
MOExtended system*
(Canada only) 320, 411
Ply composition and material
used 333
Problems under-/overinflation 319
Retreads 304
Rims and tires 432
Rotating 335
Run Flat Indicator*
(Canada only) 317
Service life 305
Sizes 432
Speed rating 288, 323, 333
Temperature 315, 330
Terminology 331
Tire Identification Number see TIN
Traction 287
Tread 334
Tread depth 306, 336
Treadwear indicators 334
Vehicle maximum load on 334
Wear pattern 335
Winter 336