roof MERCEDES-BENZ C300 4MATIC 2008 W204 Owner's Manual

Contents
3-zone automatic climate control*
(Canada only) ..................................... 259
Deactivating
climate control system ................. 261
Operating climate control
system in automatic mode ........... 261
Setting the temperature ............... 262
Adjusting air distribution .............. 263
Adjusting air volume..................... 263
Using driver-side settings for
all temperature zones................... 263
Front defroster ............................. 264
Rear window defroster ................. 265
Air recirculation mode .................. 265
Residual engine heat
and ventilation.............................. 266
Air conditioning ............................ 267
Rear climate control ..................... 268
Trunk ................................................. 269
Opening trunk .............................. 269
Closing trunk ................................ 270
Trunk emergency release ............. 271
Valet locking ................................ 272
Power tilt/sliding sunroof .................. 273
Opening and closing
power tilt/sliding sunroof............. 273Synchronizing............................... 275
Panorama roof with
power tilt/sliding panel* ................... 276
Roller sunblinds............................ 276
Opening and closing panorama
roof with power tilt/sliding panel . 277
Synchronizing............................... 278
Loading and storing ........................... 280
Roof rack*.................................... 280
Split rear bench seat* .................. 281
Loading instructions..................... 282
Storage compartments ................ 283
Cup holders.................................. 287
Trunk ............................................ 288
Useful features .................................. 289
Sun visors .................................... 289
Rear window sunshade* .............. 290
Ashtrays ....................................... 291
Cigarette lighter ........................... 292
Power outlet in the glove box ....... 293
Power outlet in the
rear passenger compartment ....... 293
Floormats* ................................... 294
lTele Aid* ..................................... 295
Garage door opener* ................... 303
Operation......................................... 309
The first 1000 miles (1500 km) ......... 310
Driving instructions ........................... 311
Drive sensibly – save fuel............. 311
Drinking and driving ..................... 311
Pedals .......................................... 311
Power assistance ......................... 311
Brakes.......................................... 312
Driving off .................................... 314
Parking......................................... 314
Tires ............................................. 315
Hydroplaning................................ 315
Tire traction ................................. 316
Tire speed rating .......................... 316
Winter driving instructions ........... 317
Standing water............................. 318
Passenger compartment .............. 318
Driving abroad ............................. 318
Control and operation
of radio transmitters .................... 319
Catalytic converter....................... 319
Emission control .......................... 320
Coolant temperature.................... 321

21 At a glance
Exterior view
ItemPage
1Trunk

Unlocking

Opening and closing

Minispare wheel

Vehicle tool kit
269
269
441
420
2Rear lamps431
3Rear window, defrosting265
4Fuel filler flap
Refueling
Gasoline322
322
481
5Doors

Locking and unlocking

Opening and closing

Unlocking/locking in an
emergency
70
70
424
6Exterior rear view mirror

Adjusting97
ItemPage

Auto-dimming rear view
mirrors*

Power folding exterior rear
view mirrors*

Parking position*
(Canada only)
97
100
98
101
7Tires and wheels

Checking tire inflation
pressure

Tire Pressure Monitoring
System (TPMS), (USA only)

Run Flat Indicator (Canada
only)

General information

Minispare wheel

Flat tire
331
341
344
342
331
422
440
8Towing the vehicle
Installing towing eye bolt453
455
ItemPage
9Headlamp cleaning system*112
aFront lamps431
bHood, opening
Engine oil
Coolant
Battery325
327
329
446
cWindshield wipers
Wiper blades, replacing
Wiper blades, cleaning117
438
368
dWindshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
264
119
368
eRoofs

Power tilt/sliding sunroof

Panorama roof with power
tilt/sliding panel*
273
276

31 At a glance
Overhead control panel
Overhead control panel
ItemPage
1Rear interior lighting on/off116
2Interior lighting control115
3Right reading lamp on/off115
4Power tilt/sliding sunroof
or
Panorama roof with power
tilt/sliding panel*273
276
5Information button*300
6Tele Aid* (emergency call
system) button295
ItemPage
7Rear view mirror 97
8Garage door opener*303
9Hands-free microphone for

Tele Aid* (emergency call
system)

Telephone*

Voice Control*1
295
160
aRoadside Assistance button*299
bLeft reading lamp on/off115
cFront interior lighting on/off114
1Voice Control* is only available with COMAND*.
Refer to separate operating instructions.

69 Controls in detail
Locking and unlocking
Starter switch positions
Seats
Steering wheel
Mirrors
Memory function* (Canada only)
Fastening the seat belts
Lighting
Windshield wipers
Power windows
Driving and parking
Manual transmission
Automatic transmission*Instrument cluster
Control system
Audio system
Driving systems
Air vents
Dual-zone automatic climate con-
trol
3-zone automatic climate control*
(Canada only)
Trunk
Power tilt/sliding sunroof
Panorama roof with power
tilt/sliding panel*
Loading and storing
Useful features

71 Controls in detail
Locking and unlocking
Factory setting
Global unlocking: Press buttonŒ.

All turn signal lamps flash once.

An acoustic signal sounds once.

The locking knobs in the doors
move up.

The anti-theft alarm system is dis-
armed.

The locator lighting will also come
on if it is dark and the feature is ac-
tivated in the control system
(
page 172).
iUSA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iCanada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iYou can also open and close the door win-
dows and tilt/sliding sunroof, or the panorama
roof with power tilt/ sliding panel* using the
SmartKey (
page 123).
!If you cannot lock or unlock the vehicle with
the SmartKey, then either the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle batteries are drained.

Check the batteries in the SmartKey and re-
place them if necessary (
page 428).

Use the mechanical key to unlock the driv-
er’s door (
page 424) and trunk
(
page 425).

Use the mechanical key to lock and trunk
(
page 272).

Have the vehicle batteries and their connec-
tions checked (
page 446).
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.
iYour vehicle is equipped with an acoustic
lock and unlock confirmation signal feature. An
acoustic signal will sound when the vehicle is
locked or unlocked using the SmartKey.
If you wish to activate or deactivate the feature,
or adjust its signal volume, contact an authorized
Mercedes-Benz Center.

74 Controls in detail
Locking and unlocking
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
They could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the vehi-
cle or with the KEYLESS-GO button on the
starter switch, or they could release the
parking brake, thereby putting themselves
and others in danger. Switch off the engine
and take the SmartKey with KEYLESS-GO
with you even if you are only leaving the ve-
hicle for a short while.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
iUSA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iCanada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iYou can also open and close the door win-
dows and tilt/sliding sunroof, or the panorama
roof with power tilt/ sliding panel* using the
SmartKey with KEYLESS-GO (
page 123).
!If you cannot lock or unlock the vehicle with
the SmartKey with KEYLESS-GO, then either the
batteries in the SmartKey with KEYLESS-GO are
discharged, the SmartKey with KEYLESS-GO is
malfunctioning or the vehicle batteries are
drained.

Check the batteries in the SmartKey with
KEYLESS-GO and replace them if necessary
(
page 428).

123 Controls in detail
Power windows
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:

opening the side windows

opening the tilt/sliding sunroof or pan-
orama roof with power tilt/sliding pan-
el* and roller sunblinds
Aim transmitter eye of the SmartKey
towards the sensor in the driver’s out-
side door handle. The SmartKey must
be in close proximity to the driver’s
door handle.
Press button Πto unlock the
vehicle.
Vehicles with tilt/sliding sunroof
Press and hold button Πuntil the
side windows and tilt/sliding sunroof
have reached the desired position.
Release button Πto interrupt pro-
cedure.Vehicles with panorama roof*
If roller sunblinds are retracted:
Press and hold button Œ. The side
windows and roller sunblinds begin to
open/extend after approximately
1 second.
With the side windows and roller blinds
fully opened/extended, press and hold
button
Πagain. The tilt/sliding pan-
el tilts and opens.
If roller sunblinds are extended:
Press and hold button Œ. The side
windows move down and the tilt/slid-
ing panel tilts and opens after approxi-
mately 1 second.
Release button Πto interrupt proce-
dure.
iThe “Summer opening” function can only be
activated via the remote control of the SmartKey
or SmartKey with KEYLESS-GO*.

124 Controls in detail
Power windows
Convenience closing feature
When you lock the vehicle, you can close
the side windows and tilt/sliding sunroof
or panorama roof with tilt/sliding panel*
simultaneously.
Afterward, you can close the roller sun-
blinds* of the panorama tilt/sliding sun-
roof*.Vehicles with SmartKey
Aim transmitter eye of the SmartKey
towards the sensor in the driver’s out-
side door handle. The SmartKey must
be in close proximity to the driver’s
door handle.
Press button ‹ to lock the vehicle.
Vehicles with tilt/sliding sunroof
Press and hold button ‹ until the
side windows and the tilt/sliding sun-
roof are completely closed.
Release button ‹ to interrupt pro-
cedure.
iThe function of the SmartKey overrules the
KEYLESS-GO function.
Warning!G
When closing the windows and the tilt/slid-
ing sunroof or panorama roof with tilt/slid-
ing panel*, make sure there is no danger of
anyone being harmed by the closing proce-
dure.
If potential danger exists, proceed as fol-
lows:

Release button ‹ to stop the closing
procedure. To open, press and hold but-
ton Œ. To continue the closing after
making sure that there is no danger of
anyone being harmed by the closing pro-
cedure, press and hold button‹.
Vehicles with KEYLESS-GO* (Canada only):

Release the sensor surface on the out-
side door handle (
page 125) to stop
the closing procedure.

Immediately pull on the same outside
door handle and hold firmly. The side
windows and the tilt/sliding sunroof or
panorama roof with tilt/sliding panel*
will open for as long as the outside door
handle is held but the door is not
opened.

125 Controls in detail
Power windows
Vehicles with panorama roof*
Press and hold button ‹ until the
side windows and the tilt/sliding panel
are completely closed.
Press and hold button ‹ again.
The roller sunblinds close.
Release button ‹ to interrupt pro-
cedure.
Vehicles with KEYLESS-GO*
(Canada only)
1Sensor surface on door handleThe SmartKey with KEYLESS-GO must be
located outside the vehicle within approxi-
mately 3 ft (1 m) of a door.
Close all doors.
Vehicles with tilt/sliding sunroof
Touch and hold sensor surface1 until
the windows and the tilt/sliding sun-
roof are completely closed.
Release sensor surface1 to interrupt
procedure.Vehicles with panorama roof*
Touch and hold sensor surface1 until
the side windows and the tilt/sliding
panel are completely closed.
Touch and hold sensor surface1
again.
The roller sunblinds close.
Release sensor surface1 to interrupt
procedure.iMake sure you are only touching the sensor
surface.
iMake sure you are only touching the sensor
surface.

251 Controls in detail
Dual-zone automatic climate control
The dual-zone automatic climate control is
operational whenever the engine is run-
ning. You can operate the dual-zone auto-
matic climate control system in either the
automatic or manual mode. The system
cools or heats the interior depending on
the selected interior temperature and the
current outside temperature.
It can only function optimally when you are
driving with the windows and the tilt/slid-
ing sunroof/panorama sunroof* closed.
Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(
page 258).
Warning!G
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite on unpro-
tected skin in the immediate area of the air
vents. Always keep sufficient distance be-
tween unprotected parts of the body and the
air vents. If necessary, use the air distribu-
tion control (
page 248) to direct the air to
air vents in the vehicle interior that are not
in the immediate area of unprotected skin.
Warning!G
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled interval. A clogged filter will
reduce the air volume to the interior and the
windows could fog up, impairing visibility
and endangering you and others. Have a
clogged filter replaced as soon as possible
at an authorized Mercedes-Benz Center.
Warning!G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.