165 Controls in detail
Automatic climate control
The system switches automatically to the
air recirculation mode if the carbon
monoxide (CO) or nitrogen oxide (NO
X)
concentration of the outside air increases
beyond a predetermined level, for example
in a tunnel.
The automatic air recirculation mode does
not function if AC
OFF
m o d e i s s e l e c t e d o r i f
the outside temperature has fallen below
41°F (5°C).
The activated charcoal filter should be
switched off when windows fog up on the
inside, or if the passenger compartment
needs to be quickly heated or cooled
down.
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of opera-
tion depending on the outside tempera-
ture.
Activating
Press button
F
(page 159).
The indicator lamp on the button lights
up.
Deactivating
Press button
F
(page 159) again.
The indicator lamp on the button goes
out.
iIf you keep button
e
pressed, the
side windows and the sliding / pop-up
roof will be returned to their previous
positions.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts blinking, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
169 Controls in detail
Power windows
Power windows
Opening and closing the windows
The side windows can be 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 passenger door and on the rear cen-
ter console.
1Left front window
2Right front window
3Right rear window
4Left rear windowAdditional switches for the rear windows
are located on the rear center console.
1Left rear window
2Right rear window
Warning!
G
When closing the windows, make sure that
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 pressed past the resistance
point and released, by pressing the respec-
tive 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 pressed 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
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 are closing the window by pressing and
holding the switch, by pressing and holding
button
‹
on the SmartKey, or by press-
ing and holding the lock button
(vehicles with KEYLESS-GO*) on the door
handle, the automatic reversal function will
not operate.
When leaving the vehicle, always remove the
key from starter switch, take the SmartKey
with KEYLESS-GO* with you, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment can cause an accident and/or serious
personal injury.
170 Controls in detailPower windows
Turn key in the starter switch to
position1 or2.
Opening the windows
Lightly press switch
k
to resistance
point.
The window will move downwards until
you release the switch.
Closing the windows
Lightly press switch
j
to resistance
point.
The window will move upwards until
you release the switch.
If you pull and hold the switch up when
closing the window, and upward move-
ment of the window is blocked by some
obstruction including but not limited to
arms, hands, fingers etc., the automat-
ic reversal will not operate.Fully opening the windows
Press switch
k
past the resistance
point and release.
Fully closing the windows
Press switch
j
past the point of re-
sistance and release.
!If the upward movement of the window
is blocked during the closing proce-
dure, the window will stop and open
slightly.
Remove the obstruction, press the
switch
j
again past the resistance
point and release.
If the window still does not close when
there is no obstruction, then hold the
switch
j
down. The side window
will then close without the obstruction
sensor function.
Warning!
G
Driver's door only:
If within five seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.
174 Controls in detailSliding / pop-up roofOpening the sliding / pop-up roof auto-
matically
To select a sunroof opening position,
press the switch to the resistance point
and release it when the sunroof has
reached the required position.
The sliding / pop-up roof now opens to
the position set if the switch is pressed
past the resistance point in the “open”
direction.
Closing the sliding / pop-up roof auto-
matically
Press the switch past the resistance
point in the “close” direction and re-
lease.
The sliding / pop-up roof closes com-
pletely.
Stopping the sliding / pop-up roof
Move the switch in any direction.If the movement of the sliding / pop-up
roof is blocked during the closing pro-
cedure, the roof will stop and reopen
slightly.Opening and closing the sliding /
pop-up roof with the SmartKey
The power windows will also be opened or
closed when you operate the sliding /
pop-up roof with the key.
Aim transmitter eye at the front door
handle.
iYou can also open or close the sliding /
pop-up roof using the:
SmartKey (
page 171)
button
O
in the control panel of
the automatic climate control
(
page 159)
button
e
in the control panel of
the automatic climate control
(
page 159)
!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the sliding /
pop-up roof.
The sliding / pop-up roof can be opened
or closed manually should an electrical
malfunction occur (
page 301).
Warning!
G
Never operate the windows or sliding /
pop-up roof if there is the possibility of any-
one being harmed by the opening or closing
procedure.
In case the procedure causes potential dan-
ger, the procedure can be stopped immedi-
ately by releasing the remote control button.
To reverse direction of movement,
press
Œ
for opening or
‹
for closing
181 Controls in detail
Driving systems
Distronic displays in the speedometer
dialSet speedIf Distronic is activated, one or two seg-
ments light up around the set speed.
SegmentsIf Distronic detects a vehicle directly
ahead, the segments from the speed of the
vehicle ahead to set speed light up.
If Distronic calculates that there is a dan-
ger of collision
the distance warning lamp
l
in the
instrument cluster lights up red
an intermittent warning sounds
Immediately brake the vehicle to avoid
a collision.
Under no circumstances should the
driver await the intermittent warning
sound before braking. See warning
note on the next page.
The intermittent warning sound ceases
and the red distance warning
lamp
l
goes out when the neces-
sary distance to the vehicle ahead is
again established.
iThe vehicle speed displayed on the
speedometer can briefly vary from the
speed setting on the Distronic system.
185 Controls in detail
Driving systems
Setting a lower speed
Briefly tip the cruise control lever in the
direction of arrow2 (
page 183) to
decrease vehicle speed in increments
of 5 mph (Canada: 10 km/h).
The new speed is set.
The stored speed is displayed in the
multifunction display for approximately
five seconds (
page 183), and one or
two segments around the stored speed
light up on the speedometer
(
page 181).Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip the cruise control lever in the
direction of arrow4 (
page 183).Setting to last stored speed
(“Resume” function)
Briefly tip the cruise control lever in the
direction of arrow4 (
page 183).
Distronic is set to the last stored
speed.
Remove your foot from the accelerator
pedal.
iWhen you use the cruise control lever
to decelerate, the transmission will au-
tomatically downshift if the rate of de-
celeration is too low.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and / or seri-
ous injury to you and others.
187 Controls in detail
Driving systems
1Distance warning function on / off
switch
2Thumbwheel for setting distance
Increasing distance
Increasing the distance setting tells Dis-
tronic to maintain a greater following dis-
tance to the vehicle ahead.
Turn thumbwheel2 towards
¯
.Decreasing distance
Decreasing the distance setting tells Dis-
tronic to maintain a shorter following dis-
tance to the vehicle ahead.
Turn thumbwheel2 towards
®
.
Distance warning function
When Distronic is deactivated, this func-
tion will continue to warn you when recog-
nizing a stationary obstacle or a slower
vehicle moving in the vehicle’s path and
the danger of a collision exists:
The distance warning lamp
l
in the
instrument cluster lights up
An intermittent warning sounds.
If these warnings are issued, you must
brake manually to maintain a safe distance
and avoid a collision with the vehicle
ahead. When pressing the brake pedal, the warn-
ing sound stops. The warning sound also
stops when the distance to the vehicle
ahead is sufficient again without applying
the brake pedal. In this case the distance
warning lamp
l
also extinguishes.
Warning!
G
If the distance warning lamp
l
in the in-
strument cluster lights up while driving
and / or an intermittent warning sounds, im-
mediate attention on the part of the driver is
required.
As required by the traffic situation, apply the
brakes and navigate around a possible ob-
stacle. However, do not drive by relying on
the distance warning function, as this will re-
sult in an emergency braking application.
Especially depending on road surface condi-
tions and driver reaction, this will not always
enable you to avoid a collision.
188 Controls in detailDriving systemsActivating
Press switch1.
Indicator lamp on the switch lights up.
A loudspeaker symbol appears in the
multifunction display (
page 183).
Deactivating
Press switch1.
Indicator lamp on the switch goes out.
No loudspeaker symbol appears in the
multifunction display.Driving with Distronic
This section describes a number of driving
situations where special precaution is re-
quired on the part of the driver. Be pre-
pared to brake in such situations. This will
deactivate the Distronic system.iComplex driving situations are not al-
ways fully recognized by Distronic. This
could result in wrong or missing dis-
tance warnings.
Warning!
G
Distronic works to maintain the speed se-
lected by the driver unless a moving obsta-
cle proceeding directly ahead of it in the
same travel direction is detected (e.g. fol-
lowing another vehicle ahead of you at a dis-
tance set by Distronic). This means that:
Your vehicle can pass another vehicle
after you change lanes.
While in a sharp turn or if the vehicle in
front is in a sharp turn, Distronic could
lose sight of a vehicle traveling in front
of it, then your vehicle could accelerate
to the previously selected speed.
Distronic regulates only the distance be-
tween your vehicle and those directly ahead
of it, but does not register stationary objects
in the road, e.g.:
a stopped vehicle in a traffic jam
a disabled vehicle
an oncoming vehicle
The driver must always be on the alert, ob-
serve all traffic and intercede as required by
steering or braking the vehicle.
Warning!
G
Distronic should not be used in snowy or icy
road conditions.