procedure, the anti-entrapment feature stops
the
roller sunblind and it opens again slightly.
The manual opening and closing of the roller
sunblind can be terminated immediately by
releasing the button. In automatic operation,
press the button briefly in any direction to
stop the roller sunblind.
The roller sunblind shields the vehicle interior
from sunlight. The roller sunblind can only be
opened and closed when the panorama roof
with power tilt/sliding panel is closed.
Opening and closing Overhead control panel
:
To open
; To open
= To close
X Turn the SmartKey to position 1
or 2 in the
ignition lock.
X Press or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again. Resetting the panorama roof with
power tilt/sliding panel and roller
sunblind
! If the panorama roof with power tilt/
sliding
panel and the roller sunblind cannot
be fully opened or closed after resetting,
contact a qualified specialist workshop.
Reset the panorama roof with power tilt/
sliding panel and the roller sunblind if the
panorama roof with power tilt/sliding panel
or the roller sunblind does not move
smoothly.
X Turn the SmartKey to position 1
or 2 in the
ignition lock.
X Pull the 3
switch repeatedly to the point
of resistance in the direction of arrow =
until the panorama roof with power tilt/
sliding panel is fully closed ( Y page 102).
X Keep the 3 switch pulled for an
additional second.
X Pull the 3
switch repeatedly to the point
of resistance in the direction of arrow =
until the roller sunblind is fully closed.
X Keep the 3 switch pulled for an
additional second.
X Make sure that the panorama roof with
power tilt/sliding panel
(Y page 101) and
the roller sunblind (Y page 102) can be fully
opened again.
X If this is not the case, repeat the steps
above again.102
Sliding sunroof (Coupe)
Opening/closing
Problems with the sliding sunroof
G
WARNING
You could be severely or even fatally injured when closing the sliding sunroof with increased
closing force or if the anti-entrapment feature is deactivated. Make sure that nobody can become
trapped when closing the sliding sunroof. G
WARNING
Pressing and holding the sliding sunroof switch to close the sliding sunroof immediately after it
had been blocked two times will cause the sliding sunroof to close without the anti-entrapment
feature for as long as you hold the switch.
! If
the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact
a qualified specialist workshop.
In this section, the term "sliding sunroof" refers to the panorama roof with power tilt/sliding
panel. Problem Possible causes/consequences and
M SolutionsThe sliding sunroof
cannot be closed and
you cannot see the
cause. If the sliding sunroof is obstructed during closing and reopens
again slightly:
X
Immediately after the sliding sunroof blocks, pull the 3
switch in the overhead control panel down to the point of
resistance and hold it until the sliding sunroof is closed.
The sliding sunroof is closed with increased force.
If the sliding sunroof is obstructed again during closing and
reopens again slightly:
X Immediately after the sliding sunroof blocks, pull the 3
switch in the overhead control panel down to the point of
resistance and hold it until the sliding sunroof is closed.
The sliding sunroof is closed without the anti-entrapment
feature. Sliding sunroof (Coupe)
103
Opening/closing Z
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired heating level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
Problems with the seat heating The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. Switching the seat ventilation on/off
Activating/deactivating The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
X
Make sure that the SmartKey is in position
2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired ventilation level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i Coupe: you can open the side windows
and the panorama roof with power tilt/
sliding panel using the "Convenience
opening" feature ( Y page 86). The seat
ventilation of the driver's seat
automatically
switches to the highest level.
Cabriolet: you can open the soft top and the
rear side windows with the SmartKey
(Y page 91). The seat ventilation of the
driver's seat automatically switches to the
highest level.
Problems with the seat ventilation The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. AIRSCARF (Cabriolet)
G
WARNING
Very hot air can flow out of the AIRSCARF
vents in the head restraints when AIRSCARF
is in operation. This can cause burns on
unprotected skin near the AIRSCARF vents.
Make
sure that you reduce the heater output
in time. 112
Seats
Seats, steering wheel and mirrors
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible.
Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: ( Y page 24).Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could
otherwise
fog up. This could prevent you from
observing the traffic conditions, thereby
causing an accident. G
WARNING
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its
scheduled replacement 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 a qualified specialist workshop.
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. The system only works
optimally when the side windows and the roof
are closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 145). i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 86).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles
of dust, and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to the vehicle interior. For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Maintenance Booklet.
Since the replacement interval depends on
environmental conditions, e.g. heavy air
pollution, the interval may be shorter than
stated in the Maintenance Booklet.
i It is possible that the residual heat
function may be activated automatically an
hour after the SmartKey is removed. The
vehicle is then ventilated for 30 minutes to
dry the air-conditioning system. 136
Overview of climate control systems
Climate control
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident.
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
The
operation of air-recirculation mode is the
same for all control panels.
X Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the g button.
The indicator lamp above the g button
lights up.
i In
the event of high pollution levels 1
or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
above the g button does not light up.
Outside air is added after about
30 minutes.
X To deactivate: press the g button.
The indicator lamp above the g button
goes out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
The
residual heat function is only available in
vehicles for Canada with automatic climate
control.
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
Coupe: the residual heat function only works
optimally if the side windows and panorama
roof with power tilt/sliding panel are closed.
Cabriolet: the residual heat function only
works optimally if the soft top is closed.
X To activate: press the Ì button.
The indicator lamp above the Ì button
lights up.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X To deactivate: press the Ì button.
The indicator lamp above the Ì button
goes out.
i It is possible that the residual heat
function
may be activated automatically an
hour after the SmartKey is removed. The
vehicle is then ventilated for 30 minutes to
dry the air-conditioning system.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
1 Automatic climate control only. Operating the climate control systems
145
Climate control Z
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as
a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist
workshop. Driving tips
General notes
Important safety notes G
WARNING
Always remember that you must concentrate
primarily on driving the vehicle. The driver's
concentration must always be directed
primarily at road traffic. For your own safety
and that of others, we recommend that you
stop the vehicle at a safe place and in
accordance
with the traffic conditions before
making or accepting a phone call.
Comply with all legal requirements if you use
the telephone while driving. Use the hands-
free system and only use the telephone when
road, weather and traffic conditions permit. In
some jurisdictions, it is forbidden for drivers
to use mobile phones while driving.
Only operate the audio system or COMAND
(Cockpit Management and Data System) in
compliance with all legal requirements and
when the road, weather and traffic conditions
permit. You may otherwise not be able to
observe the traffic conditions, endangering
yourself and others.
Remember that your vehicle covers a distance
of 44 ft (approximately 14 m) a second when
it is traveling at only 30 mph (approximately
50 km/h). Drive sensibly – save fuel Observe the following tips to save fuel:
X
The tires should always be inflated to the
recommended tire pressure.
X Remove unnecessary loads.
X Remove roof racks when they are not
needed.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work carried out as
indicated by the service intervals in the
Maintenance Booklet or by the service
interval display.
Fuel consumption also increases when
driving
in cold weather, in stop-and-go traffic
and in mountainous terrain.
Drinking and driving G
WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment.
The possibility of a serious or even fatal
accident
are greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Pedals G
WARNING
Make sure absolutely no objects are
obstructing the pedals' range of movement.
Keep the driver's footwell clear of all
obstacles. If there are any floormats or
carpets in the footwell, make sure that the
pedals still have sufficient clearance.
During sudden driving or braking maneuvers,
the objects could get caught between the
pedals. You could then no longer brake or Driving tips
169
Driving and parking
Z
a window on the side of the vehicle that is not
facing into the wind.
Have
your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Driving with summer tires Observe the notes in the "Winter operation"
section (
Y page 324).
Slippery road surfaces G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine
braking on a slippery road surface. G
WARNING
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. The road may still be icy,
especially in wooded areas or on bridges.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Shift the transmission to position N.
Drive particularly carefully on slippery road
surfaces.
Avoid sudden acceleration, steering
and braking maneuvers. Do not use the cruise
control or DISTRONIC PLUS.
i For more information on driving with
snow chains, see ( Y page 325). Driving systems
Cruise control
Important safety notes G
WARNING
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle's speed
and for safe brake operation.
Only
use the cruise control if the road, traffic,
and weather conditions make it advisable to
travel at a constant speed.
R The use of the cruise control can be
dangerous on winding roads or in heavy
traffic because conditions do not allow safe
driving at a constant speed.
R The use of the cruise control can be
dangerous on slippery roads. Rapid
changes in tire traction can result in wheel
spin and loss of control.
R Deactivate the cruise control when driving
in fog.
The "Resume" function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed. G
WARNING
The cruise control brakes automatically so
that the set speed is not exceeded.
General notes Cruise control maintains a constant road
speed
for you. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden, you must select shift range
1, 2 or 3 in good time. By doing so, you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly. 174
Driving systems
Driving and parking
Display messages Possible causes/consequences and
M SolutionsK
Open/Close
Convertible Top
Completely The roof is not locked.
If
you drive at speeds of more than 25 mph (40 km/h), you cannot
open or close the soft top.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Push or pull the soft-top switch until the soft top is fully open or
closed ( Y page 90). K
Start Engine See
Operator's Manual The on-board voltage is too low.
X
Start the engine. The soft top has been opened and closed several times in a row.
The soft-top drive has been switched off automatically for safety
reasons.
You
can open and close the soft top again after approximately ten
minutes.
X Switch off the ignition and turn it back on.
X Repeat the opening or closing procedure ( Y page 90).¥
Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid ( Y page 297).SmartKey
Display messages Possible causes/consequences and
M SolutionsÂ
Key Does Not
Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey. Â
Take
Your Key from
Ignition The SmartKey is in the ignition lock.
X
Remove the SmartKey. Â
Obtain a New Key The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop. Â
Replace
Key Battery The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries ( Y page 75).254
Display messages
On-board computer and displays