Page 159 of 417

Adjusting the centre air vents
:
Fixed centre air vent
; Centre air vents, right
= Centre vent control, right
? Centre vent control, left
A Centre air vents, left
X To open/close: press control=or?.
The control pops out.
X Turn control =or? to anti-clockwise or
clockwise.
X To adjust the air direction: hold rear air
vent ;orA by the middle fin and move up
or down or to the left or right. Adjusting the side air vents
:
Side window demister vent
; Side air vent
= Control for left side air vent X
To open/close: press control=.
The control pops out.
X Turn control =to anti-clockwise or clock-
wise.
X To adjust the air direction: hold side air
vent ;by the middle fin and move it up or
down or to the left or right. Adjusting the glove compartment air
vent
! Close the air vent when heating the vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu- midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
compartment could be damaged.
When automatic climate control is activated,
the glove compartment can be ventilated, for
instance to cool its contents. The level of air- flow depends on the airflow and air distribu-
tion settings. :
Air vent thumbwheel
; Air vent
X To open or close: turn control:to the
right or left. 156
Adjusting the air ventsClimate cont
rol
Page 160 of 417
Setting the rear-compartment air
vents X
To open/close: press control=.
The control pops out.
X Turn control =to the anti-clockwise or to
clockwise.
X To adjust the air direction: hold rear air
vent :or; by the middle fin and move up
or down or to the left or right. Adjusting the air vents
157Climate control Z
Page 247 of 417

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 26). Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer. G
WARNING
If the instrument cluster has failed or there is a malfunction, you may not know about
safety-related function restrictions. The oper-ating safety of your vehicle may be affected.
There is a risk of an accident.
Immediately stop the vehicle while paying
attention to the traffic conditions and consult
a qualified specialist workshop. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognise function
restrictions relevant to safety. The operating safety of your vehicle may be impaired. There
is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
If the operating safety of your vehicle is
impaired, park the vehicle safely as soon as
possible. Contact a qualified specialist work-
shop.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make
sure your vehicle is operating safely at all
times.
For an overview; see the instrument cluster
illustration (Y page 32). Displays and operation
Instrument cluster lighting
The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display. In daylight, the displays
in the instrument cluster are illuminated. A
dimming function is not possible in daylight.
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control is located between the instrument cluster and the COMAND Display
(Y page 34).
X Turn the brightness control knob clockwise
or anti-clockwise.
If the light switch (Y page 128) is set to
Ã, TorL, the brightness is
dependent upon the brightness of the
ambient light. Rev counter
! Do not drive in the overrevving range.
Doing so will damage the engine. 244
Displays and operationOn-board computer and displays
Page 374 of 417

X
Remove the towing eye from the vehicle
tool kit/stowage tray (Y page 357).
X Press the mark on cover :inwards in the
direction of the arrow.
X Remove cover :from the opening.
X Screw in the towing eye clockwise as far as
it will go and tighten it.
Removing the towing eye X
Loosen the towing eye and unscrew it.
X Attach cover :to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit/
stowage tray. Towing the vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 369).
The automatic transmission automatically
shifts to position Pwhen you open the driver's
or front-passenger door or when you remove the key from the ignition lock.
In order to ensure that the automatic trans-
mission stays in position Nwhen towing the
vehicle, you must observe the following
points:
X You must use the key instead of the Start/
Stop button (Y page 161).
X Make sure that the vehicle is stationary and
that the key is in position 0in the ignition
lock.
X Turn the key to position 2in the ignition
lock.
X Depress and hold the brake pedal.
X Shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the electric parking brake. X
Leave the key in position 2in the ignition
lock.
X Switch on the hazard warning lamps
(Y page 128).
i In order to signal a change of direction
when towing the vehicle with the hazard
warning lamps switched on, use the com-
bination switch as usual. In this case, only
the turn signals for the desired direction
flash. When you reset the combination
switch, the hazard warning lamps start
flashing again. Towing the vehicle away with the rear
axle raised
Only vehicles without 4MATIC can be
towed away with the rear axle raised.
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could other-
wise damage the brake system.
! Vehicles with 4MATIC must not be towed
with the front or rear axle raised; otherwise,
the transmission may be damaged.
! Vehicles with automatic transmission
must not be towed with the rear axle raised.
The car/trailer combination may otherwise swerve or even overturn. Transporting the vehicle
! You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise,
the vehicle could be damaged.
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporta-
tion.
X Turn the key to position 2in the ignition
lock.
X Shift the automatic transmission to posi-
tion N. Towing away and tow-starting
371Breakdown assistance Z