Page 174 of 474
173 Controls in detail
Good visibility
Sun visors
The sun visors protect you from sun glare
while driving.
1Mounting
2Mirror cover
3Mirror lamp
4Sun visor
Swing sun visor4 down when you
experience glare.
To use illuminated mirror, lift up mirror
cover2.
Warning!
G
Do not use the vanity mirror while driving.
Keep the mirrors in the sun visors closed
while vehicle is in motion. Reflected glare
can endanger you and others.
iIf sun visor4 is disengaged from
mounting1 with mirror cover2
open, mirror lamp3 will switch off.iIf sunlight enters through a side
window, close mirror cover2 (if
open), disengage sun visor4 from
mounting1 and pivot to the side.
Page 241 of 474

240 Controls in detailPower windowsOpening and closing the windows
The side windows are opened and closed
electrically. The switches for all the side
windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
doors.
1Left front window
2Right front window
3Right rear window
4Left rear window
5Rear window override switch
(
page 85)
Warning!
G
When closing the power windows, make
sure there is no danger of anyone being
harmed by the closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
If the window encounters an obstruction
t h a t b l o c k s i t s p a t h i n a c i r c u m s t a n c e w h e r e
you pulled the switch past the resistance
point and released it to close the window,
the automatic reversal function will stop the
window and open it slightly.
If the window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, by pressing and holding
button‹ on the SmartKey, or by press-
ing and holding button, ore on the
climate control panel, the automatic rever-
sal function will not operate.
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. Unsuper-
vised use of vehicle equipment can cause an
accident and/or serious personal injury.
Page 243 of 474

242 Controls in detailPower windows
Stopping windows
Press or pull respective switch again.
Synchronizing power windows
The power windows must be
resynchronized each time
after the battery has been
disconnected or discharged.
if the power windows cannot be fully
opened (Express-open) or closed
(Express-close).
Switch on the ignition (
page 33).
Pull the power window switches until
the side windows are closed.
Hold the switches for approximately
1 second.
The power windows are synchronized.
!If the upward movement of the window
is blocked during the closing
procedure, the window will stop and
open slightly.
Remove the obstruction, pull the
switch again past the resistance point
and release.
If the window still does not close when
there is no obstruction, then pull and
hold the switch again. The side window
will then close without the obstruction
sensor function.
Warning!
G
Driver’s door only:
If within 5 seconds you again pull the switch
past the resistance point and release, the
automatic reversal will not function.
Page 259 of 474

258 Controls in detailUseful featuresArmrest storage compartments
1Handle
2Button, passenger side
3Button, driver’s side
Opening storage compartment
Pull handle1 and lift armrest.
Closing storage compartment
Press armrest down until it engages
into place.Opening telephone compartment
Press button3 on driver’s side or
button2 on passenger side and lift
armrest.
Closing telephone compartment
Press armrest down until it engages
into place.
Armrest in the rear passenger
compartment
Pull the top of the armrest out and fold
it down.Parcel net in front passenger footwell
(all models, except C 280 4MATIC and
C 350 4MATIC)
A small convenience parcel net is located
in the front passenger footwell. It is for
small and light items, such as road maps,
mail, etc.
Warning!
G
The parcel net is intended for storing
light-weight items only.
Heavy objects, objects with sharp edges or
fragile objects may not be transported in the
parcel net. In an accident, during hard brak-
ing, or sudden maneuvers, they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
The parcel net cannot protect transported
goods in the event of an accident.
Page 262 of 474

261 Controls in detail
Useful features
Ashtrays
Center console ashtray
1Cover plate
2Sliding button
3Ashtray insert
Briefly press the bottom of cover
plate1.
The cover plate opens automatically.Removing ashtray insert
Secure vehicle from movement by
setting the parking brake.
Move the gear selector lever to
positionN (manual transmission:
second gear).
Now you have more room to take out
the ashtray insert.
Push sliding button2 to the right.
The ashtray insert3 slides out
slightly.
Remove the ashtray insert.Reinstalling ashtray insert
Push the ashtray insert3 down into
the retainer until it engages.
Push down cover plate1 to close
ashtray.
The cover plate engages.
Rear seat ashtray
1Button
2Ashtray insert
3Cover
Pull at top of cover3.
Warning!
G
Remove front ashtray only with vehicle
standing still. Set the parking brake to
secure vehicle from movement. Move gear
selector lever to positionN (manual trans-
mission: second gear). With gear selector
lever in positionN (manual transmission:
second gear) turn off the engine.
Page 263 of 474
262 Controls in detailUseful featuresRemoving ashtray insert
Push button1 to disengage ashtray
insert2 and remove it.
Reinstalling ashtray insert
Push the ashtray insert2 down into
the retainer until it engages.
Push at top of cover3 to close
ashtray.
Cigarette lighter
Switch on the ignition (
page 33).1Cover plate
2Cigarette lighter
Briefly press the bottom of cover
plate1.
The cover plate opens automatically.
Push in cigarette lighter2.
The cigarette lighter will pop out
automatically when hot.
Warning!
G
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
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. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 290 of 474

289 Operation
Driving instructions
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.Road salts and chemicals can adversely
affect braking efficiency. Increased pedal
force may become necessary to produce
the normal braking effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt-impaired braking
efficiency back to normal.
If the vehicle is parked after being driven
on salt-treated roads, the braking
efficiency should be tested as soon as
possible after driving is resumed.
For more information, see “Winter driving”
(
page 336).
iFor information on driving with snow
chains, see “Snow chains”
(page 337).
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.
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Warning!
G
If the vehicle becomes stuck in snow, make
sure snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon monox-
ide (CO) gases may enter vehicle interior re-
sulting in unconsciousness and death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the
vehicle not facing the wind.Warning!
G
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the
road surface is free of ice.
Page 307 of 474

306 OperationTires and wheelsTread depth
Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths under 1/8in (3 mm).
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately
1/16
in (1.6 mm), at which point
the tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
Summer tires
1/8in (3 mm)
Winter tires
1/6in (4 mm)
1TWI (T
read W
ear I
ndicator)
The treadwear indicator appears as a solid
band across the tread.Storing tires
Cleaning tires
Warning!
G
Although the applicable federal motor safety
laws consider a tire to be worn when the
treadwear indicators (TWI) become visible at
approximately
1/16in (1.6 mm), we
recommend that you do not allow your tires
to wear down to that level. As tread depth
approaches
1/8in (3 mm), the adhesion
properties on a wet road are sharply
reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
!Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact
with oil, grease and gasoline.!Never use a round nozzle to power
wash tires. The intense jet of water can
result in damage to the tire.
Always replace a damaged tire.