81 Controls in detail
Locking and unlocking
Seats
Memory function*
Lighting
Instrument cluster
Control system
Manual transmission
Automatic transmission*
Good visibility
Climate control
Automatic climate control*
Audio system
Power windows
Sliding/pop-up roof*
Driving systems
Loading
Useful features
141 Controls in detail
Manual transmission
Manual transmission
Manual transmission is standard
equipment on select models and not
available on all models.
For information on driving with a manual
transmission, see “Manual transmission”
(page 43).
Do not exceed the maximum speed in the
individual gears. Refer to tachometer
(page 111) for engine speeds.
Shifting into reverse
Stop the vehicle completely.
Pull gearshift lever up and shift
inRreverse.
Warning!
G
For vehicles equipped with a manual trans-
mission, getting out of your vehicle with the
gearshift lever not engaged in first or
reverse gear and parking brake engaged is
dangerous.
Also, when parked on an incline, an engaged
first or reverse gear alone may not prevent
your vehicle from moving, possibly hitting
people or objects.
Always set the parking brake in addition to
engaging first or reverse gear (
page 50).
When parked on an incline, turn front wheels
towards the road curb.
Do not park this vehicle in areas where
combustible 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.Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Children
could move the gearshift lever, which could
result in an accident and/or serious injury.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 loss of control.!Downshifting gears leading to overrev-
ving 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
(page 111).
142 Controls in detailAutomatic transmission*
Automatic transmission*Automatic transmission is standard
equipment on select models and available
as optional equipment on other models
Information on driving with an automatic
transmission is found in the “Getting
started” section (
page 44).
Your vehicle’s transmission adapts its gear
shifting process to your individual driving
style by continually adjusting the shift
points up or down. These shift point adjust-
ments are performed based on current
operating and driving conditions.
If the operating conditions change, the
automatic transmission reacts by
adjusting its gear shift program.The automatic transmission selects indi-
vidual gears automatically, depending on:
the gear selector lever positionD with
gear ranges4, 3, 2, 1 (
page 144)
the selected shift program (C/S)
(page 146)
the position of the accelerator pedal
(page 147)
the vehicle speed
The current gear selector lever position
and shift program (
C/S) appear in the
multifunction display (page 113).
An additional indication of the current gear
selector lever position can be found on the
cover of the shifting-gate. The indicators
come on when you activate a switch (e.g.
unlocking the vehicle or opening a door)
and go out after approximately
15 minutes.When the gear selector lever is in
positionD, you can influence transmission
shifting by:
limiting the gear range
changing gears manually
iDuring the brief warm-up, transmission
upshifting is delayed. This allows the
catalytic converter to heat up more
quickly to operating temperature.
Warning!
G
It is dangerous to shift the gear selector
lever out ofP orN 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 reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
143 Controls in detail
Automatic transmission*
One-touch gearshifting
Even with an automatic transmission you
can change the gears manually when the
gear selector lever is in positionD.
Downshifting
Briefly press the gear selector lever to
the left in theD-direction.
The transmission will shift from the current
gear to the next lower gear. This action
simultaneously limits the gear range of the
transmission (
page 144).Upshifting
Briefly press the gear selector lever to
the right in theD+direction.
The transmission will shift from the current
gear to the next higher gear as permitted
by the shift program. This action simul-
taneously extends the gear range of the
transmission.Canceling gear range limit
Press and hold the gear selector lever
in theD+direction until
D reappears in
the multifunction display.
The transmission will shift from the current
gear range directly to gear rangeD.
Shifting into optimal gear range
Press and hold the gear selector lever
in theD-direction.
The transmission will automatically select
the gear range suited for optimal
acceleration and deceleration. This will
involve shifting down one or more gears.
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 loss of control.
iTo avoid overrevving the engine when
the gear selector lever is moved to
theD-direction, the transmission will
not shift to a lower gear if the engine’s
max. speed would be exceeded.
207 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume at last set speed
Setting current speed
Accelerate or decelerate to the desired
speed.
Briefly lift1 or depress2 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.
or
Briefly push cruise control lever to
position3.
Cruise control will be canceled. The
last speed set will be 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 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 skid-
ding (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.
241 Operation
Driving instructions
After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so that the air stream will cool
down the brakes faster.Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine smoothly. Do not
place full load on the engine until the
operating temperature has been reached.When starting off on a slippery surface, do
not allow a drive wheel to spin for an
extended period with the ESP switched off.
Doing so may cause serious damage to the
drive train which is not covered by the
Mercedes-Benz Limited Warranty.
Parking
!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps
prevent overheating of the brakes and
reduces brake pad wear.
!Simultaneously depressing the
accelerator pedal and applying the
brake reduces engine performance and
causes premature brake and drivetrain
wear.!Set the parking brake whenever park-
ing or leaving the vehicle. In addition,
move gear selector lever to positionP
(manual transmission: first or reverse
gear).
When parking on hills, always turn front
wheels towards the road curb.
Warning!
G
Do not park this vehicle in areas where
combustible 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 gear selector lever to
positionP (manual transmission: first or
reverse gear).
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the SmartKey to starter switch
position0 and remove.
Take the SmartKey with you and lock
vehicle when leaving.
244 OperationDriving instructionsC240, C2404MATIC, C320, and
C3204MATIC
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).
C 230 Kompressor Sport, and
C320Sport
Your vehicle is factory equipped with
“W”-rated tires, which have a speed rating
of 168 mph (270 km/h) or 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
130 mph (210 km/h).C32AMG
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 263).
iFor information on driving with snow
chains, see “Snow chains”
(page 264).
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.
308 Practical hintsUnlocking/locking in an emergency
Slide mechanical key1 back into the
SmartKey.
Fuel filler flap
In case the central locking system does
not release the fuel filler flap, you can open
it manually.
Open the trunk lid.
Fold away right-side tail lamp trim.
Reach inside through opening2 in
direction of arrow.
Turn release knob1 clockwise
(arrow).
The fuel filler flap can now be opened.
Manually unlocking the transmission
gear selector lever
In the case of power failure the transmis-
sion gear selector lever can be manually
unlocked, e.g. to tow the vehicle.
1Coin holder
2Tool
Open the storage compartment in front
of the center armrest (
page 218).
Release coin holder1 (e.g. using a
small coin).
Swing coin holder1 aside.
Insert a tool2 (e.g. flat blade
screwdriver) into the opening.
Perform the following two steps
simultaneously:
Push tool2 down.
Move gear selector lever from
positionP.
Reinstall coin holder1 after removing
tool2 from the opening.
iWhen inserting the batteries, make
sure they are clean and free of lint.
iThe gear selector lever is locked again
when moving it to positionP.