2003 MERCEDES-BENZ C320 COUPE engine

38 Getting startedAdjustingSteering wheel adjustment, manual
1Release handle
To unlock the steering column, pull
handle1 out until its stop limit.

Adjust the steering wheel to the de-
sired position.

To lock, press handle1 all the way in
until it engages.
The steering wheel is once again
locked into position.Steering wheel adjustment, electrical*

Turn the key in the starter switch to
position1 or2.
or

Open the driver’s door.
The switch is located on the steering col-
umn (lower left).
1Steering column, lengthen or shorten
2Steering column, height
!Do not drive the vehicle until you have
properly locked the steering column.
If the warning message
STEERING
WHEEL ADJUST - LOCK! is displayed
while the engine is running, the steer-
ing column is not locked (page 268).

44 Getting startedDriving

Ensure that the seat belt is always fit-
ted snugly. You should avoid wearing
bulky clothing, such as winter coats,
when traveling in the vehicle.
Starting the engine Manual transmission
Gearshift pattern for manual transmission
Make sure that the gearshift lever is in
Neutral position.

Do not depress accelerator.

Fully depress clutch pedal.
Otherwise the engine cannot be start-
ed due to the integrated safety inter-
lock.
Warning!
G
Do not pass belts over sharp edges. They
could tear.
Do not allow the belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the belt.
Never attempt to make modifications to
seat belts. This could impair the effective-
ness of the belts.
Damaged seat belts or belts that were highly
stressed in an accident must be replaced by
an authorized Mercedes-Benz Center.
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.

45 Getting started
Driving

Turn the key in the starter switch to
position3. Release only when the en-
gine is firing regularly (
page 31).
More information can be found in the
“Controls in detail” section (page 130).
Automatic transmission*
Gearshift pattern for automatic
transmissionPPark position with selector lever lock
RReverse gear
NNeutral
DDrive position

Make sure that the gear selector lever
is set toP.

Do not depress accelerator.
Starting

Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 31).

Depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the key see “Turning off the engine”
(
page 52)Starting difficulties
If the engine does not start as described,
carry out the following steps:

Turn key in starter to position0 and re-
peat starting procedure.
Remember that extended starting at-
tempts can drain the battery

Get a jump start (
page 297).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.

Notify an authorized Mercedes-Benz
Center.
iYou can also use the “touch-start”
function. Turn the key to position3 and
release it again immediately. The en-
gine then starts automatically.

46 Getting startedDrivingParking brake
1Release handle
2Parking brake

Release the parking brake by pulling on
handle1.
The indicator lamp
;
(USA only) or
3
(Canada only) in the instrument
cluster goes out.
Driving

Depress the brake pedal.

Move selector lever to positionD orR
(manual transmission: first or reverse
gear).

Release the brake pedal.

Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the auto-
matic central locking system engages
and the locking knobs drop down.After a cold start, the automatic transmis-
sion engages at a higher revolution. This al-
lows the catalytic converter to reach its
operating temperature earlier.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Children could release the parking
brake, which could result in an accident
and/or serious injury.
iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
!If you hear a warning signal when driv-
ing off, you have forgotten to release
the parking brake.
Release the parking brake.!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.iVehicles with automatic transmission:
Wait for the gear selection process to
complete before setting the vehicle in
motion.

47 Getting started
Driving
More information on driving can be found
in the “Operation” section (
page 215).
Switching on headlampsExterior lamp switch1Off
2Low beam headlamps on
Turn the switch to
B
.
More information can be found in the
“Controls in detail” section (page 96).
Turn signals and high beam
The combination switch is on the left of the
steering column.Combination switch1Turn signals, right
2Turn signals, left
Press the combination switch up1 or
down2.
Warning!
G
Vehicles with automatic transmission: It is
dangerous to shift the selector lever out ofP
or N if the engine speed is higher than idle
speed. If your foot is not firmly on the brake
pedal, the vehicle could accelerate quickly
forward or in reverse. You could lose control
of the vehicle and hit someone or some-
thing. Only shift into gear when the engine is
idling normally and when your right foot is
firmly on the brake pedal.Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.

50 Getting startedDrivingProblems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.


The engine electronics may not be op-
erating properly.


Unburned gasoline may have entered
the catalytic converter and damaged it.

Give very little gas.

Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.The coolant temperature is over 248°F
(120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.

Check the coolant level and add cool-
ant if necessary (
page 229).In case of accident
If the vehicle is leaking gasoline:

Do not start the engine under any cir-
cumstances.

Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:

Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the


major assemblies


fuel system


engine mount

Start the engine in the usual manner.

51 Getting started
Parking and locking
Parking and locking
You have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows.
Parking brake
1Release handle
2Parking brake
Step firmly on parking brake 2.
When the engine is running, the indica-
tor lamp
;
(USA only) or
3
(Canada only) in the instrument cluster
will be illuminated.
Warning!
G
Wait until the vehicle is stationary before re-
moving the key from the starter switch. The
vehicle cannot be steered when the key is
removed.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
system. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to stop or steer the vehi-
cle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of vehicle movement, before turning off
the engine and leaving the vehicle always:

Keep right foot on brake pedal.


Firmly depress parking brake pedal.


Move the selector lever to positionP
(manual transmission: first or reverse
gear).


Slowly release brake pedal.


When parked on an incline, turn front
wheels towards road curb.


Turn the key to starter switch position0
and remove.


Take the key and lock vehicle when leav-
ing.

52 Getting startedParking and locking
Switching off headlamps
Turn the exterior lamp switch to
M

(
page 47).
More information can be found in the
“Controls in detail” section (
page 96).
Turning off engine 
Place the gear selector lever in
positionP (manual transmission: first
or reverse gear).
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Children could release the parking
brake and/or move the gear selector lever
from positionP, either of which could result
in an accident and/or serious injury.
Warning!
G
Getting out of your vehicle with the selector
lever not fully engaged in positionP is dan-
gerous. Also, when parked on an incline,
positionP alone may not prevent your vehi-
cle from moving, possibly hitting people or
objects.
Always set the parking brake in addition to
shifting to positionP (manual transmission:
first or reverse gear).
When parked on an incline, turn front wheels
towards the road curb.
iAlways set the parking brake in addi-
tion to shifting to positionP (manual
transmission: first or reverse gear). iOn steep slopes, turn the front wheels
towards the road curb.