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Reference
71
place Ð the transmission lockout is
released.
Re-engage the transmission lockout
after parking the vehicle at its destina-
tion. Otherwise there is a danger that the
vehicle could start to roll if parked on a
steep slope.<
Engaging again
1.Disengage the release lever by pressing
it together with the red detent lever,
arrow 1
2.Guide the release lever all the way back
into its original position Ð the transmis-
sion lockout is again engaged
3.Fold up and lock the cover panel. Now Ð
and not before Ð the key may be
removed.
Once the transmission lockout has
been re-engaged, the warning in the
Check Control should disappear, and the
symbol in the Info Display should change
from N to P. Should this fail to happen,
there is a danger that the vehicle could
start to roll.<
Information on jump-starting, tow-starting
and towing begins on page 202.
Turn signal indicators/
headlamp flasher
1High beams Ð blue indicator lamp
2Headlamp flasher Ð blue indicator lamp
3Turn signal indicators Ð the green indi-
cator lamp flashes, accompanied by a
periodic ticking from the turn signal
indicator relay
Using turn signal indicators
Move the lever beyond the detent position.
It then returns to the center position when
released. Press the lever as far as the
detent to switch off the turn signal indica-
tors.
Signaling briefly
Press the lever up to but not beyond the
detent. It then returns to the center position
when released.
If the flashing of the indicator lamp and the
ticking from the relay are both faster than
normal, this indicates that one of the bulbs
is defective; if a trailer is attached, this
could also indicate that one of its turn
signal indicator bulbs is defective.

Driving
74
1 Maintaining and storing speed,
accelerating
Press the lever as far as the detent:
The system maintains and stores the cur-
rent vehicle speed. Every time you tap the
lever the vehicle's speed increases by
roughly 1 mph (1 km/h).
Press the lever longer:
The vehicle accelerates without pressure
on the accelerator pedal. The system main-
tains and stores your current speed as
soon as you release the lever.
The vehicle may accelerate beyond
the preset speed on steep downhill
stretches where the engine's braking effect
alone may not be sufficient to slow the
vehicle. Speed can drop on uphill grades if
the engine output is insufficient.<
2 Maintaining and storing speed,
decelerating
Pull lever back to detent:
The system maintains and stores the cur-
rent vehicle speed. Every time you tap the
lever the vehicle's speed decreases by
roughly 1 mph (1 km/h).
Pull the lever longer:
The throttle aperture is automatically
reduced, slowing the vehicle. The system
maintains and stores your current speed as
soon as you release the lever.
3 Interrupting cruise control
Briefly press the lever up or down while the
cruise control is active.
In addition, cruise control is interrupted
automatically
>when you apply pressure to the brake
pedal
>when you select the automatic trans-
mission's neutral range N
>when the DSC system, Dynamic Sta-
bility Control, is in active operation.
4 Recalling stored speed
Briefly press button 4:
The vehicle accelerates to and maintains
the last speed stored.
Deactivating system
When the ignition is switched off, the
system is deactivated and the stored speed
is deleted.
Displays in the Info Display
5Display of speed ready for recall
> Ð cruise control activated
> Ð cruise control deactivated
6Display of stored desired speed Ð multi-
level preset function
5 and 6 are displayed when the
system is activated.<
Activating multilevel preset function
Push 1 or pull 2 the lever beyond the
detent.
The current driving speed is maintained,
stored and displayed as the available
speed 5.
If no desired speeds are stored, you
can increase or reduce the speed by
5 mph (10 km/h) with the multilevel preset
function activated each time you press or
pull the lever beyond the resistance point.<

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Changing preset level
Push 1 or pull 2 the lever beyond the
detent. The preset speed progresses to the
next desired speed. The lowest speed that
is possible to select is roughly 20 mph
(30 km/h).
Interrupting the cruise control
With the cruise control active, briefly tap
the lever up or down.
Hiding display for multilevel preset
function
When activated, press the lever upward or
downward for approx. 3 seconds.
Showing display for multilevel preset
function again
Press 1 or pull 2 the lever beyond the
detent.
Deactivating the multilevel preset
function
The multilevel preset function is also deac-
tivated when you switch off the ignition.
Storing desired speeds
With vehicle stationary
Switch on the ignition.
Press 1 or pull 2 the lever beyond the
detent: the selectable speed level is dis-
played with 5.
>To increase desired speed:
Press the lever forward
>To decrease desired speed:
Pull back the lever
>To store desired speed:
Maintain pressure on button 4 for
approx. 3 seconds. The stored desired
speed appears in 6.
If 6 speeds have already been stored,
it will be necessary to delete one
before entering a new preset speed.<
While driving
Activate multilevel preset function.
Maintain pressure on button 4 for approx.
3 seconds. The respective driven speed is
applied as the desired speed and displayed
with 6.
If all of the graduations flash at once
this indicates that 6 desired speeds
have already been stored. You must then
delete at least one.<
Deleting desired speeds
Select the desired speed 5.
Press button 4 for approx. 3 seconds.
Active cruise control*
The concept
With active cruise control you can select a
desired speed which is not only automati-
cally maintained when driving on open
roadways, but also varied to maintain a
selected distance setting as slower traffic
is encountered.
Active cruise control is a technological
advance over the familiar cruise control
and is a welcome relief from the constant
adjustment of speed that can accompany
driving in traffic on freeways or other high-
speed thoroughfares. Especially on longer

Driving
76 trips, the system can reduce fatigue and
tension, while increasing your enjoyment of
driving. Please use it safely and respon-
sibly.
In addition to holding a steady cruising
speed, if you do encounter slower vehicles
ahead, active cruise control will Ð within the
scope of given possibilities Ð adjust your
vehicle's speed automatically so that one
can flow with the traffic without frequent
intervention by the driver. If, for example,
while cruising at the selected speed, you
begin to approach a slower vehicle ahead
of you in the same lane, the system will
reduce your vehicle's speed to the same as
that of the vehicle ahead to maintain your
selected distance setting between your
vehicle and the vehicle ahead. There are
four settings for distance, which is addi-
tionally speed-dependent. Based on your
selected distance setting, the system auto-
matically decreases the throttle setting and
lightly applies the brakes if necessary. The
vehicle brake lamps will automatically illu-
minate to signal a following driver to take
action. In addition, it may be necessary for
the vehicle to downshift to maintain the dis-
tance setting selected. If the vehicle ahead
speeds up or when the lane ahead
becomes clear, your vehicle will accelerate
to the speed you have selected by
increasing the throttle setting and shifting
gears as needed.
Active cruise control is not and must
not be used as a collision avoidance/
warning system.<
Since this active cruise control
system is a new technology and oper-
ates differently from conventional cruise
control systems which you may be accus-
tomed, you are strongly urged to read all of
the pages relating to this system before
use. Pay special attention to the informa-
tion contained in the Things to know about
active cruise control section in this manual
beginning on page 79.<
Info Display screen contents
1Stored desired speed display
2Detected vehicle display. Lights up
when vehicle driving ahead is detected
3Selected distance to vehicle driving
ahead
4Digital speed display.
Appears briefly when you select your
desired speed, refer to page 77.
1, 2 and 3 are displayed when the
system is activated.<
The system is activated.
The display appears as soon as
you activate the system and no
vehicle is detected driving
ahead.
Vehicle detected.
The display lights up when a
vehicle is detected driving
ahead.

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The system requests you to
intervene by braking or with an
evasive maneuver. The display
flashes. The active cruise con-
trol cannot automatically
restore the distance to the vehicle driving
ahead. You will find more detailed informa-
tion on page 80.
Automatic intervention by ABS
or DSC, or you actuate the
parking brake while driving. The
active cruise control now only
intervenes by braking.
Operating the active cruise control
1Activate system,
store and increase desired speed
2Activate system,
store and decrease desired speed
3Deactivate system
4With system deactivated:
Briefly press the button to recall the
stored speed and distance
4With system activated:
Increase desired speed by 1 mph
(1 km/h) with each press of the button
5Select distance to vehicle driving
ahead. You can choose from four avail-
able distance settings. You will find
more detailed information on page 78
Adjust your desired speed to the
traffic conditions and remain ready to
brake at all times. Great differences in
speed to the vehicles driving ahead, e.g.
when quickly approaching a truck or when
another vehicle swerves into your lane,
cannot be compensated for by the
system.<
Activate system
From approx. 20 mph (30 km/h) you can
activate the system by pressing the lever
forward or pulling it back:
The current driving speed is stored as a
desired speed and briefly displayed in the
speedometer, see arrow.
If the system cannot be activated, the
display ACC --- mph (km/h) briefly
appears in the speedometer. The system
may have been automatically deactivated,
refer to Deactivate system, or a malfunction
has occurred.
To call up Check Control messages, refer
to page 86.<
1 Desired speed store and increase
Press the lever forward:
The system adopts and stores your current
speed as a desired speed. The speedom-
eter indicates this speed.
Subsequently pressing forward increases
the desired speed to the next 5-mile place
(10 km/h).
Each time the lever is pressed forward
again, the desired speed is increased by
another 5 mph (10 km/h) until a maximum
of 110 mph (180 km/h) is reached. The

Driving
78 speed then displayed is stored and
reached on a clear road.
2 Desired speed store and decrease
Pull back the lever:
The current driving speed is rounded off to
the next 5-mile place (10 km/h), displayed
and stored.
Each time the lever is pulled back again,
the desired speed is decreased by another
5 mph (10 km/h) until the minimum speed
of 20 mph (30 km/h) is reached. The speed
then displayed is stored and reached on a
clear road.
3 Deactivate system
Press the lever up or down while the
system is active. The displays in the speed-
ometer disappear. You can use the system
again as required.
In addition, the system is deactivated auto-
matically:
>when you apply pressure to the brake
pedal
>when you select the automatic trans-
missionÕs neutral range N
>when you deactivate the Dynamic Sta-
bility Control DSC
>when you actuate the parking brake
during driving
>when the system reduces the speed to
below 20 mph (30 km/h) due to a traffic
situation.
The system deactivates automatically
when the speed is set to below
20 mph (30 km/h). A gong sounds and a
message appears in the Check Control.
The active intervention of the driver is
required.<
Background lighting
You can switch off the background lighting
of the speedometer and tachometer
>when you have deactivated the system
>when the prewarning field in the
tachometer has gone out, refer to
page 82 >when the destination guidance system
of the navigation system is deactivated.
Press the lever up or down for approx.
1 second.
4 Resume to stored desired speed
and distance setting
Press button 4:
The displays appear in the speedometer.
The system is reactivated and uses the last
stored desired speed and distance setting.
4 Fine adjustment of desired speed
In the activated state, the desired speed
increases by 1 mph (1 km/h) each time
button 4 is pressed briefly.
5 Select distance
You can choose from four distance steps.
>Rotary switch upward:
Increase distance
>Rotary switch downward:
Decrease distance.
The selected distance is displayed in the
speedometer.
Distance 1
Distance 2

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braking system capacity and does not uti-
lize the full capacity of the vehicle braking
system. Therefore, the system cannot
decrease your speed for large differences
in speed between your vehicle and the
vehicle ahead. Examples: during emer-
gency braking, when you approach a
vehicle traveling at a much lower speed
than your own speed such as approaching
a toll booth or when a much slower vehicle
cuts in front of you at close range.<
Whenever active cruise control
recognizes a situation that
requires driver braking because
the system capacity has been
reached or has been exceeded,
the system alerts the driver by flashing this
symbol in the instrument cluster and
sounding a chime.
Swerving vehicles
When a vehicle moves from an adjacent
lane into your lane, active cruise control will
not recognize this vehicle until it is fully in
your lane ahead of your vehicle.
Malfunctions
The build-up of foreign material Ð e.g.,
snow, ice, dirt, road debris, etc. Ð can lead
to reduced detection performance of active
cruise control. You should check the
sensor under the front bumper and clean it
as necessary prior to driving your vehicle. If
the sensor becomes covered by foreign
material or has a malfunction, it is possible
that the sensor will no longer be able to
detect vehicles in front of you. After the
system recognizes that the sensor is no
longer functional, a message is displayed
in the Check Control and an acoustic signal is emitted, refer to page 85. Also observe
the additional information provided in the
Control Center.

Everything under control
82
Everything under control
Odometer, outside temperature display, clock
When the ignition is off you can briefly acti-
vate the time, outside temperature and
odometer displays by pressing the knob at
the upper left of the Info Display.
1 Outside temperature display, clock
The outside temperature and the time dis-
plays are active starting at the radio mode
in the ignition lock.
You can change the units of measure
Ð 6/7Ð in the "Settings" menu, refer to
page 91.
Setting the clock, refer to page 91.
Ice warning
A warning signal sounds when the outside
temperature falls to roughly +37.57
(+36); this is accompanied by a message
in the Check Control.
Please bear in mind that the ice
warning does nothing to alter the fact
that glare ice may be present on roads at
temperatures higher than +37.57 (+36),
for instance, on bridges and shade-
covered surfaces.<
2 Odometer
The odometer panel also provides displays
for the computer and the Check Control.
Regardless of the current display mode,
you can view the odometer reading for a
short period by pressing the knob at the
upper left of the Info Display. Check Control, refer to page 85.
Computer, refer to page 86.
3 Trip odometer
The trip odometer must be present in the
display before you can reset it to zero.
Reset by pressing the knob at the upper left
of the Info Display.
Tachometer
The orange warning sector gradually
moves upward as the engine warms to its