Page 204 of 481

203 Controls in detail
4-zone automatic climate control
Setting the temperature
Use temperature control rocker
switches4 and6 to separately adjust
the air temperature on each side of the
rear passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C). The adjusted tem-
perature appears in display5. The rear
climate control will adjust to the set tem-
perature as fast as possible.
1Temperature, left
2Temperature, rightAdjust the temperature to the desired
setting for each side of the passenger
compartment using the left and right
temperature control rocker switches.
The temperature in the rear passenger
compartment is adjusted automatical-
ly.
Adjusting air distribution
Move the slider for the left center
vent1 or right center vent2 to the
left, right, up, or down.
The air flow is directed in the
corresponding direction.Adjusting air volume
Turn thumbwheel3 or7
(
page 202) up or down.
The air volume is increased or
decreased.
Adjusting the rear settings with the
front control panel
You can adjust the temperature for the
rear climate control from the front climate
control panel.
Press button™ or 5
(
page 190) or (page 191).
The display switches over.
1Rear climate control display
iYou can also adjust the rear temperature us-
ing the front climate control panel (
page 190)
or (
page 191).iThe rear climate control will not cool the air
when the air conditioning is switched off
(
page 201).
iFor draft-free ventilation, push slides1
and2 (
page 202) upward.
Page 205 of 481
204 Controls in detail
4-zone automatic climate control
Set the desired temperature for the
rear passenger compartment using the
temperature rocker switches
(
page 190) or (page 191).
After approximately 5 seconds after
the last adjustment, the display switch-
es back to its standard display.Front center console storage compart-
ment ventilation
The front center console storage compart-
ment under the armrest has its own air
vent. The air temperature is about the
same as that of the dashboard air vents.
The lever is located in the front center
vent.
1Lever
To open air vent slide the lever1 up.
To close air vent slide the lever1
down.
iYou can also press button™ or5
(
page 190) or (page 191) once more to
switch back to the standard display.
iThe compartment can get very warm due to
its confined space. When storing heat sensitive
objects (e.g. groceries) in the compartment,
close the air vent while heating the passenger
compartment.
Page 215 of 481

214 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume at last set speedSetting current speed
Accelerate or decelerate to the desired
speed.
Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.
Remove your foot from the accelerator
pedal.
Cruise control is activated.
The selected speed appears in the multi-
function display for approximately
5 seconds, and the corresponding speed-
ometer segments from the selected speed
to the vehicle maximum speed are illumi-
nated.
Warning!G
The cruise control brakes automatically so
that the set speed is not exceeded.
Keep in mind that the cruise control is a con-
venience system designed to assist the driv-
er during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe brake operation.
iOn uphill or downhill grades, the cruise con-
trol may not be able to maintain the set speed.
Once the grade eases, the set speed will be re-
sumed.
On downhill grades, the cruise control maintains
the set speed with active braking action. In addi-
tion, on longer downhill grades the automatic
transmission will automatically downshift.
Page 216 of 481

215 Controls in detail
Driving systems
Canceling cruise control
There are several ways to cancel the cruise
control:
Step on the brake pedal.
The cruise control is canceled. The last
speed set is stored for later use.
or
Briefly push the cruise control lever in
direction of arrow3 (
page 214).
The cruise control is canceled. The last
speed set is stored for later use.Setting a higher speed
Lift the cruise control lever in direction
of arrow1 (
page 214) and hold it
up until the desired speed is reached.
Release the cruise control lever.
The new speed is set.
iThe last stored speed is canceled when you
turn off the engine.
iThe cruise control automatically switches
off, if
you step on the brake pedal.
you depress the parking brake pedal.
In this case the segments in the multifunc-
tion display (
page 139) go out and no
warning sounds.
the vehicle speed is below 20 mph
(30 km/h).
the ESP® is in operation or switched off with
the ESP® switch (page 94).
you move the gear selector lever to position
N while driving.
The segments in the multifunction display
(
page 139) go out, and an acoustic warning
sounds.
!Moving the gear selector lever to positionN
while driving also cancels the cruise control.
However, the gear selector lever should not be
moved to positionN while driving except to
coast when the vehicle is in danger of skidding
(e.g. on icy roads).
iDepressing the accelerator pedal does not
deactivate the cruise control. After brief acceler-
ation (e.g. for passing), the cruise control will re-
sume the last speed set.
Warning!G
If you increase the vehicle set speed, keep in
mind that it may take a brief moment until
the vehicle has reached the set speed.
Increase the vehicle set speed to a value
that the prevailing road conditions and legal
speed limits permit. Otherwise, sudden and
unexpected acceleration of the vehicle
could cause an accident and/or serious in-
jury to you and others.
Page 217 of 481

216 Controls in detail
Driving systems
Setting a lower speed
Depress the cruise control lever in
direction of arrow2 (
page 214) and
hold it down until the desired speed is
reached.
Release the cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip the cruise control lever in
direction of arrow1 (
page 214).
Slower
Briefly tip the cruise control lever in
direction of arrow2 (
page 214).Setting to last stored speed
(“Resume” function)
Briefly pull the cruise control lever to
position4 (
page 214).
The cruise control resume the last set
speed.
Remove your foot from the accelerator
pedal.
The selected speed appears in the multi-
function display for approximately
5 seconds, and the corresponding speed-
ometer segments from the selected speed
to the vehicle maximum speed are illumi-
nated.
Warning!G
If you increase the vehicle set speed, keep in
mind that it may take a brief moment until
the vehicle has reached the set speed.
Increase the vehicle set speed to a value
that the prevailing road conditions and legal
speed limits permit. Otherwise, sudden and
unexpected acceleration of the vehicle
could cause an accident and/or serious in-
jury to you and others.
iWhen you use the cruise control lever to de-
celerate, the brake system will automatically
brake the vehicle if the engine’s braking power
does not brake the vehicle sufficiently.
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 the pre-
set speed could cause an accident and/or
serious injury to you and others.
Page 220 of 481

219 Controls in detail
Driving systems
Distronic displays in the speedometer
dial
1Set speed
If Distronic is activated, one or two seg-
ments come on around the set speed.
Warning!G
Close attention to road and traffic condi-
tions is imperative at all times, regardless of
whether or not Distronic is activated.
Use of Distronic can be dangerous on wind-
ing roads or in heavy traffic because condi-
tions do not allow safe driving at a steady
speed.
Distronic will not react to stationary objects
in the roadway (e.g. a stopped vehicle in a
traffic jam or a disabled vehicle). Distronic
will also not respond to oncoming vehicles.
Switch off Distronic:
when changing from the left to the right
lane if vehicles are moving more slowly
in the left lane
when entering a turn lane or highway off
ramp
in complex driving situations, such as in
highway construction zones
In these situations, Distronic will continue to
maintain the set speed unless deactivated.
Distronic is designed and intended only to
maintain a set speed and keep a set dis-
tance from moving objects in front of it.
Warning!G
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
iThe vehicle speed displayed on the speed-
ometer can briefly vary from the speed setting
on the Distronic system.
Page 222 of 481
221 Controls in detail
Driving systems
Distronic menu in the control system
In the Distronic menu you can read the cur-
rent settings for Distronic. What appears in
the multifunction display depends on
whether Distronic and the distance warn-
ing function are turned on or off.
Press buttonè orÿ repeatedly
until one of the following displays ap-
pears.Distronic deactivated
When Distronic is deactivated you will see
the standard display in the multifunction
display.
1Vehicle ahead, if detected
2Actual distance to vehicle ahead
3Preset distance threshold to vehicle
ahead
4Your vehicle
5Symbol for activated distance warning
function
Warning!G
Distronic brakes your vehicle with a maxi-
mum deceleration of 6.5 ft/s2 (2 m/s2).
This corresponds to about 20% of the maxi-
mum deceleration ability of your vehicle.
Distronic brakes the vehicle in an effort to
restore the preset distance or to maintain
the speed.
Page 223 of 481

222 Controls in detail
Driving systems
Distronic activated
If you turn Distronic on, you will see the set
speed in the multifunction display for
about 5 seconds. When Distronic is
activated, you will see the following display
in the multifunction display.
1Distronic activatedCruise control lever
The Distronic system is operated by means
of the cruise control lever.
The cruise control lever is the uppermost
lever on the left-hand side of the steering
column.
1Set current or higher speed
2Set current or lower speed
3Deactivate Distronic
4Resume at last set speedActivating Distronic
You can activate Distronic if:
you are driving between 20 mph
(30 km/h) and 110 mph (180 km/h)
the ESP® is activated (page 92)
If Distronic has not been activated after
pressing the cruise control lever you will
see the message
--- in the multifunction
display.
In the following cases you cannot activate
Distronic:
up to 2 minutes after starting the
engine
when you brake
if you have set the parking brake
if the gear selector lever is in
positionP, R orN
if the ESP® is switched off