2003 MERCEDES-BENZ C240 Ac port

308 Practical hintsTowing the vehicle
Towing the vehicleMercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground or front wheels raised (except
vehicles with 4MATIC*) only so far as
necessary to have the vehicle moved to a
safe location where the recommended
towing methods can be employed.
!Use flatbed or wheel lift/dolly equip-
ment with key in starter switch turned
to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts.
Switch off the tow-away alarm
(page 80) and deactivate the auto-
matic central locking (
page 129).
!Vehicles with automatic transmission
and/or 4MATIC*:
Do not tow-start the vehicle.!Vehicles with 4MATIC*:
Do not tow with one axle raised. Doing
so could damage the transfer case,
which is not covered by the
Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground.
Observe instructions for towing the
vehicle with all wheels on the ground.
!If the vehicle is towed with the front
axle raised (not permissible for vehicles
with 4MATIC*), the engine must be
shut off (key in starter switch
position0 or1). Otherwise the ESP will
immediately be engaged and will apply
the rear wheel brakes.
When towing the vehicle with all wheels
on the ground, the selector lever must
be in positionN (manual transmission:
gears disengaged) and the key must be
in starter switch position2.
When towing the vehicle with all wheels
on the ground or the front axle raised,
the vehicle may be towed only for
distances up to 30 miles (50 km) and
at a speed not to exceed 30 mph
(50 km/h).

310 Practical hintsTowing the vehicleWarning!
G
With the engine not running, there is no
power assistance for the braking and steer-
ing systems. In this case, it is important to
keep in mind that a considerably higher
degree of effort is necessary to brake and
steer the vehicle. Adapt your driving accord-
ingly.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking
activated and the key in starter switch
position2, the vehicle doors lock if the
left front wheel as well as the right rear
wheel are turning at vehicle speeds of
approx. 9 mph (15 km/h) or more.
Switch off the tow-away alarm
(page 80).
To prevent the vehicle doors from
locking, deactivate the automatic
central locking (
page 129).
Towing of the vehicle should only be
done using the properly installed
towing eye bolt. Never attach tow
cable, tow rope or tow rod to vehicle
chassis, frame or suspension parts.
iIf the battery is disconnected or
discharged

the key will not turn in the starter
switch. See notes on the battery
(page 240) or on jump starting
(page 306).


the selector lever will remain
locked in positionP. See notes on
manual unlocking of gear selector
lever (
page 288).

319 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
C 230 Kompressor Sport
1Power steering pump
2Idler pulley
3Mechanical loader
4Automatic belt tensioner
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
C240 / C320 (all models)
1Idler pulley
2Automatic belt tensioner
3Power steering pump
4Air conditioning compressor
5Crankshaft
6Coolant pump, fan
7Generator (alternator)
C32AMG
1Idler pulley
2Idler pulley
3Supercharger
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump, fan
9Generator (alternator)

320 Technical dataEngine
EngineModel
C 230 Kompressor Sport (203.040)
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 240 (203.061)
1
C 240 4MATIC (203.081)
1
Engine
271
112
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
4
6
Bore
3.23 in (82.00 mm)
3.54 in (89.90 mm)
Stroke
3.35 in (85.00 mm)
2.68 in (68.20 mm)
Total piston displacement
109.6 cu.in. (1 796 cm
3)
158.5cu.in. (2597cm
3)
Compression ratio
8.5:1
10.5:1
Output acc. to SAE J 1349
189 hp / 5 800 rpm
(141 kW / 5 800 rpm)
167 hp / 6 000 rpm
(125 kW / 6 000 rpm)
Maximum torque
acc. to SAE J 1349
192ft.lb/3500rpm
(260 Nm / 3 500 rpm)
177 ft.lb / 4 500 rpm
(240 Nm / 4 500 rpm)
Maximum engine speed
6000 rpm
6 200 rpm
Firing order
1-3-4-2
1-4-3-6-2-5
Poly-V-belt
7ft 11in (2420mm)
7 ft 10 in (2 390 mm)

321 Technical data
Engine
Model
C 320 (203.064)
1
C 320 4MATIC (203.084)
1
C 320 Sport (203.064)
1
C 320 4MATIC Sport (203.084)
1
C 32 AMG (203.065)
1
Engine
112
112
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
6
6
Bore
3.54 in (89.90 mm)
3.54 in (89.90 mm)
Stroke
3.31 in (84.00 mm)
3.31 in (84.00 mm)
Total piston displacement
195.2cu.in. (3199cm
3)
195.2 cu.in. (3 199 cm
3)
Compression ratio
10:1
9:1
Output acc. to SAE J 1349
214 hp / 5 700 rpm
(160 kW / 5 700 rpm)
348 hp / 6 100 rpm
(260 kW / 6 100 rpm)
Maximum torque
acc. to SAE J 1349
229 ft.lb / 3 000 rpm
(310 Nm / 3 000 rpm)
333ft.lb/4400rpm
(450 Nm / 4 400 rpm)
Maximum engine speed
6000 rpm
6200 rpm
Firing order
1-4-3-6-2-5
1-4-3-6-2-5
Poly-V-belt
7ft 10in (2390mm)
9ft 6in (2902mm)
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.

323 Technical data
Rims and Tires
Same size tires
C240
C2404MATIC
C320
C3204MATIC
C 230 Kompressor Sport
C320Sport
C 320 4MATIC Sport
C32AMG
Rims (light alloy)
7J x 16 H2
71/2J x 17
-
Rims (steel - Canada only)
7J x 16 H2
-
-
Wheel offset
1.46 in (37 mm)
1.46 in (37 mm)
-
All season tires (radial-ply tires)
205/55 R16 91 H
-
-
Summer tires (radial-ply tires)
-
225/45 R17 91 W
1
1Must not be used with snow chains.
-
Winter tires (radial-ply tires)
205/55 R16 91 H M+S
205/55 R16 91 H M+S
205/50 R17 89 H M+S
2
or
225/45 R17 91 H M+S1, 2
2Only on rim 71
/
2 Jx17 H2 ET 37

325 Technical data
Rims and Tires
Spare wheel
Your vehicle is equipped with either a spare wheel with full size tire or Minispare wheel.
Spare wheel with full size tire
Minispare wheel
C 230 Kompressor Sport
C 240 (all models)
C 320 (all models)
C32AMG
Rim (light alloy)
-
71/2J x 17 H2
Rim (steel)
7J x 16 H2
-
Wheel offset
1.46 in (37 mm)
1.42 in (36 mm)
All season tire (radial-ply tire)
205/55 R16 91 H
225/45 R17 91 Y
C 230 Kompressor Sport
C 240 (all models)
C 320 (all models)
Rim (steel)
3.5B x 16 H2
Wheel offset
0.67 in (17 mm)
All season tire (radial-ply tire)
T 125/90 R16 M 98
1
1Must not be used with snow chains.

326 Technical dataElectrical system
Electrical system
C230KompressorSport
C 240 / C 320 (all models)
C32AMG
Generator (alternator)
14 V/120 A
14 V/120 A
14 V/120 A
Starter motor
12 V/1.1 kW
12 V/1.7 kW
12 V/1.7 kW
Battery
12 V/100 Ah
12 V/100 Ah
12 V/100 Ah
Spark plugs
Bosch F 6 MPP 332
Bosch F 8 DPP332
NGK PFR 5 R-11
NGK IFR 6 D 10
Electrode gap
0.031 in (0.8 mm)
0.039 in (1.0 mm)
0.039 in (1.0 mm)
Tightening torque
18–22ft.lb (25–30Nm)
15 – 22 ft.lb (20 – 30 Nm)
15 – 22 ft.lb (20 – 30 Nm)