clutch MERCEDES-BENZ C240 2005 W203 Owner's Manual

46 Getting startedDrivingStarting the engine Manual transmission
Gearshift pattern for manual transmissionFor more information, see “Manual trans-
mission” (
page 154).Starting

Depress brake pedal.

Make sure the gearshift lever is in
neutral position (no gear selected).

Fully depress clutch pedal.
Otherwise the engine cannot be
started due to the integrated safety
interlock.

Do not depress the accelerator.

Turn the SmartKey in the starter switch
to position3 and hold until the engine
starts (
page 33).
For information on turning off the engine,
see “Turning off engine” (
page 56).
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and lead to death.
Do not run the engine in confined areas
(such as garage) which are not properly ven-
tilated. If you think that exhaust gas fumes
are entering the vehicle while driving, have
the cause determined and corrected imme-
diately. If you must drive under these condi-
tions, drive only with at least one window
fully open.

155 Controls in detail
Manual transmission
Gearshift pattern for manual transmission
Shifting into reverse
Stop the vehicle completely.

Fully depress clutch pedal.

Move the gearshift lever to neutral
position (no gear selected).

Move the gearshift lever to the left until
you feel a certain resistance.

Push the gearshift lever past this
resistance.

Then move the gearshift lever forward
into positionR.
!When you are shifting into the5th
or6th gear, make sure that you press
the gearshift lever to the right. Other-
wise, you could accidentally shift into
the3rd or4th gear and damage the
transmission.
Downshifting gears leading to
overrevving the engine can result in
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Never hold the vehicle stopped on a hill
by using the clutch pedal. The clutch
may be damaged which is not covered
by the Mercedes-Benz Limited
Warranty.
Do not exceed the engine speed limits.
Refer to tachometer (
page 119) for
engine speeds.
!Only shift into reverse gearR when the
vehicle is stationary, as the transmis-
sion could otherwise be damaged.

232 Controls in detailDriving systems1Sets current or higher speed
2Sets current or lower speed
3Cancels cruise control
4Resumes at last set speed
Setting current speed
Accelerate or decelerate to the desired
speed.

Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.

Remove your foot from the accelerator
pedal.
Cruise control is activated.Canceling cruise control
There are several ways to cancel cruise
control:

Step on the brake pedal.
Cruise control is canceled. The last
speed set is stored for later use.
or

Briefly push the cruise control lever to
position3.
Cruise control is canceled. The last
speed set is stored for later use.iOn uphill or downhill grades, cruise
control may not be able to maintain the
set speed. Once the grade eases, the
set speed will be resumed.
!Vehicles with automatic transmission:
Moving the gear selector lever to
positionN while driving also cancels
cruise control. However, the gear
selector lever should not be moved to
positionN while driving, except to
coast when the vehicle is in danger of
skidding (e.g. on icy roads).iVehicles with manual transmission:
The set cruise controlled speed is
switched off when declutching exceeds
four seconds during downshifting a
gear.iThe last stored speed is canceled when
you turn off the engine.

270 OperationDriving instructionsC 230 Kompressor (Canada only),
C240, C2404MATIC,
C 320 (USA only), C 320 4MATIC
Your vehicle is factory equipped with
“H”-rated tires, which have a speed rating
of 130 mph (210 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).
C230KompressorSport, C320Sport
Your vehicle is factory equipped with
“W”-rated tires, which have a speed rating
of 168 mph (270 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).C55AMG
Your vehicle is factory equipped with
“Y”-rated tires, which have a speed rating
of 186 mph (300 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
155 mph (250 km/h).
Winter driving instructions
The most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding,
move gear selector lever to positionN or in
case of manual transmission declutch.
Try to keep the vehicle under control by
corrective steering action.
iFor information on tire speed rating for
winter tires, see “Winter tires”
(page 290).
iFor information on driving with snow
chains, see “Snow chains”
(page 291).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of control loss.

402 Technical termsPower 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
Program mode selector switch
Used to switch the automatic
transmission* between standard
operationS, comfort operationC and
manual operationM (C 55 AMG only).REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the
vehicle interior for a short time after
the engine has been turned off.
Restraint systems
Seat belts, belt tensioners, air bags
and child restraint systems. As inde-
pendent systems, their protective
functions complement one another.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired deto-
nation (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.Shift lock
When the vehicle is parked, this lock
prevents the transmission gear
selector lever from being moved out of
positionP without SmartKey turned
and brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning
device and air bags. Though indepen-
dent systems, they are closely inter-
faced to provide effective occupant
protection.