2008 MERCEDES-BENZ C300 Key go

274 Controls in detail
Power tilt/sliding sunroof
1Push up to raise sunroof at rear
2Push back to slide sunroof open
3Pull down to close the sunroof
With the sunroof closed or tilted open, a
screen can be slid into the roof opening to
help provide shade. When sliding the sun-
roof open, the screen will also retract.Screen
Switch on the ignition.
To open, close, raise or lower, move the
switch to resistance point in the re-
quired direction1to3 until the
tilt/sliding sunroof has reached the de-
sired position.
iWhen the tilt/sliding sunroof is open, reso-
nance noises may result in addition to the usual
wind noises. They are caused by minimal pres-
sure changes in the passenger compartment. To
reduce or eliminate these noises, change the po-
sition of the tilt/sliding sunroof or open a side
window slightly.
iYou can also open or close the tilt/sliding
sunroof using the SmartKey, see “Summer open-
ing feature” (
page 123) and “Convenience
closing feature” (
page 124).
iWith the SmartKey in starter switch
position0 or removed from the starter switch,
the tilt/sliding sunroof can be operated

until you open the driver’s or passenger door

for up to approximately 5 minutes

277 Controls in detail
Panorama roof with power tilt/sliding panel*
Opening and closing panorama roof
with power tilt/sliding panel
The tilt/sliding panel only operates with
the roller sunblinds extended.
Warning!G
When opening or closing the tilt/sliding pan-
el, make sure there is no danger of anyone
being harmed by the opening or closing pro-
cedure.
The opening procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch or, if the switch was moved
past the resistance point and released, by
moving the switch in any direction.
The closing procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch.
The panorama roof with power tilt/sliding
panel is made out of glass. In the event of an
accident, the glass may shatter. This may re-
sult in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening.
Such an opening also presents a potential
for injury for occupants wearing their seat
belts properly as entire body parts or por-
tions of them may protrude from the pas-
senger compartment.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
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. A child’s unsupervised
access to a vehicle could result in an acci-
dent and/or serious personal injury.
!To avoid damaging the seals, do not trans-
port any objects with sharp edges which can
stick out of the tilt/sliding panel.
Do not open the tilt/sliding panel if there is snow
or ice on the roof, as this could result in malfunc-
tions.
!Please keep in mind that weather conditions
can sometimes change rapidly. Make sure to
close the tilt/sliding panel when leaving the ve-
hicle. If water enters the vehicle interior, vehicle
electronics could be damaged which is not cov-
ered by the Mercedes-Benz Limited Warranty.
iWhen the panorama roof with power
tilt/sliding panel is open, resonance noises may
result in addition to the usual wind noises. They
are caused by minimal pressure changes in the
passenger compartment. To reduce or eliminate
these noises, change the position of the panora-
ma roof with power tilt/sliding panel or open a
side window slightly.
iYou can also open or close the tilt/sliding
panel using the SmartKey, see “Summer open-
ing feature” (
page 123) and “Convenience
closing feature” (
page 124).


284 Controls in detail
Loading and storing
Storage compartments in the front pas-
senger compartment
Glove box
1Glove box lid release
The glove box can be unlocked and locked
with the mechanical key (
page 424).
Opening: Pull glove box lid release1.
Closing: Push the lid up until it
engaged.
Locking: Insert the mechanical key
into the glove box lock and turn it
clockwise to position2.
Unlocking: Insert the mechanical key
into the glove box lock and turn it coun-
terclockwise to position1.Storage compartments in the front
armrest
1Right button for storage compartments
2Left button for large storage compart-
ments
1Unlocking glove box
2Locking glove box

290 Controls in detail
Useful features
Rear window sunshade*
The switch is located in the center console.
1Rear window sunshade switch
Switch on the ignition.
Always raise the sunshade fully for its sup-
port against the window frame.
Raising: Press switch1 briefly.
The sunshade is raised completely.
Stopping the raising procedure:
Press switch1 again.
The sunshade stops.
Lowering: Press switch1 briefly.
The sunshade is lowered completely.
Stopping the lowering procedure:
Press switch1 again.
The sunshade stops.
!Make sure the movement of the rear win-
dow sunshade is not restricted by objects on the
rear window shelf. Otherwise, the sunshade or
the objects could be damaged.
Warning!G
When operating the rear window sunshade,
make sure there is no danger of anyone be-
ing harmed by the raising or lowering
procedure.
The raising or lowering procedure can be
immediately halted by briefly pressing the
switch1.
Briefly press switch1 again to raise or low-
er the rear window sunshade completely.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
(Canada only) 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.

292 Controls in detail
Useful features
Rear seat ashtray
1Ashtray insert
2Cover
3Button
Opening: Pull at top of cover2.
Removing ashtray insert: Push
button3 to disengage ashtray
insert1 and remove it.
Reinstalling ashtray insert: Push the
ashtray insert1 down into the retain-
er until it engages.
Push at top of cover2 to close
ashtray.
Cigarette lighter
Switch on the ignition.1Cover
2Cigarette lighter
Press cover plate1 forward until it en-
gaged.
Push in cigarette lighter2.
The cigarette lighter will pop out
automatically when hot.
Warning!G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
(Canada only) 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.
A child’s unsupervised access to a vehicle
could result in an accident and/or serious
personal injury.

301 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are ac-
tive, an emergency call is still possible. In
this case, the emergency call will take pri-
ority and override all other active calls.
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
or
Contact the Tele Aid web page via In-
ternet using the ID and password sent
to you shortly after the completion of
your acquaintance call.
Then return to your vehicle and pull the
trunk lid handle for a minimum of
20 seconds until the SOS button is
flashing.
The message:
Call connecting ap-
pears in the multifunction display.
The Response Center will then unlock
your vehicle with the remote door un-
locking feature.
!If the indicator lamps do not start flashing
after pressing one of the buttons or remain illu-
minated (in red) at any time, the Tele Aid system
has detected a fault or the service is not current-
ly activated, and may not initiate a call. Contact
an authorized Mercedes-Benz Center and have
the system checked or contact the Response
Center at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada) as soon as possi-
ble.
iThe indicator lamp in the respective button
flashes until the call is concluded. Calls can only
be terminated by a Response Center or Custom-
er Assistance Center representative except
Roadside Assistance and Information calls,
which can also be terminated by using the t
button on the multifunction steering wheel or the
respective button for ending a telephone call on
the audio system or the COMAND* head unit.
!If the indicator lamp continues to flash or
the system does not terminate the call at all,
contact the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or Mercedes-Benz
Customer Assistance at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Customer Ser-
vice at 1-800-387-0100 in Canada.
iWhen a Tele Aid call has been initiated, the
audio system is muted. The optional cellular
phone (if installed) switches off. If you must use
this phone, the vehicle must be parked. Unplug
the telephone, switch it on and place the call.
The COMAND* navigation system (if engaged)
will continue to run. The multifunction display in
the instrument cluster is available for use, but
spoken commands are not available.
iThe remote door unlock feature is available
if the relevant telephone network is available and
data connection is possible.
The SOS button will flash and the message:
Call
connecting
appears in the multifunction dis-
play to indicate receipt of the door unlock com-
mand.


312 Operation
Driving instructions
Brakes
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
Refer to the description of the Brake Assist
System (BAS) (
page 60).
Brake pad wear or a leak in the system may
be the reason for low brake fluid level in
the reservoir.
The brake fluid level in the reservoir may
be too low if the red brake warning lamp in
the instrument cluster comes on while the
engine is running and an acoustic warning
sounds (
page 376). Observe additional
messages in the multifunction display that
may appear (
page 387).
Warning!G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking
effect. Maintain a safe distance from
vehicles in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an
accident.
!Vehicles without 4MATIC:
Because the ESP® operates automatically, the
engine and ignition must be shut off (SmartKey
in starter switch position0 or1 or KEYLESS-GO
(Canada only) start/stop button* in position0
or1) when

the parking brake is being tested on a brake
test dynamometer

the vehicle is being towed with the front axle
raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
For information on vehicles with 4MATIC, see
“Four wheel electronic traction system (4MATIC)
with the ESP®” (
page 65).
Warning!G
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.

314 Operation
Driving instructions
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 oper-
ating temperature has been reached.Parking
!When driving 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 drivetrain which is
not covered by the Mercedes-Benz Limited War-
ranty.
!Simultaneously depressing the accelerator
pedal and applying the brakes reduces engine
performance and causes premature brake and
drivetrain wear.
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, or
damage to the vehicle or the vehicle
drivetrain, as a result of vehicle movement,
always do the following before turning off
the engine and leaving the vehicle:

Keep right foot on brake pedal.

Manual transmission: Move the gear
shift lever to neutral position (no gear
selected).

Firmly depress the parking brake.

Manual transmission: Move the gear
shift lever into first or reverse gear.

Automatic transmission*: Move the
gear selector lever to positionP.

Slowly release brake pedal.

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

Turn the SmartKey or the SmartKey
with KEYLESS-GO* (Canada only) to
starter switch position0 and remove, or
press the KEYLESS-GO* start/stop but-
ton.

Take the SmartKey or the SmartKey with
KEYLESS-GO
* with you and lock the
vehicle when leaving.