Controls
63Reference
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time.
The brake lamps come on.
The vehicle continues to brake automati-
cally for as long as you maintain pressure
on the button.<
When you brake the vehicle to a vir-
tual stop, i.e., down to a speed of
approx. 2 mph/3 km/h or below, the park-
ing brake remains engaged.
The indicator lamp in the Info Display
lights up red. Briefly press the button to
disengage the parking brake manually.<
Automatic Hold
You can activate this feature after starting
the engine; it then remains operational until
the next time the engine is switched off.
This feature provides supplementary sup-
port during vehicle operation by automati-
cally engaging and releasing the parking
brake during stops at traffic lights, in stop-
and-go traffic, etc. As the vehicle then no
longer tends to creep when the transmis-
sion is engaged, it is no longer necessary
to hold the vehicle by pressing the brake
pedal.
It prevents the vehicle from rolling back-
ward during uphill starts.
The parking brake engages automatically
when you stop the vehicle and switch off
the engine.
You can activate or cancel the Automatic
Hold feature by selecting the "Settings"
menu in the Control Center. A description
of the Control Center is provided on
page 17.
Automatic Hold activation/
deactivation
1.Select "Settings"
2.Select and confirm
3.Select "AUTO P". Press the controller
to activate/deactivate the desired func-
tion
>Automatic Hold is activated.
The green AUTO P status message in
the Info Display shows you that the sys-
tem is ready for operation
>Automatic Hold is deactivated.
The green AUTO P status message dis-
appears from the Info Display.
You can assign the Automatic Hold
function to the programmable button
in the steering wheel, refer to page 52.
This feature then provides you with quick
access to the Automatic Hold function,
allowing you to control it without undue
distraction from road and traffic condi-
tions.<
You can also deactivate Auto-
matic Hold by pressing the but-
ton while the vehicle is station-
ary. The vehicle remains
stationary, the indicator lamp
changes from green to red. Press the but-
ton again to release the parking brake.
Driving with Automatic Hold
The parking brake engages automatically
when the vehicle comes to a stop. The indi-
cator lamp in the Info Display lights
up green.
To start off again, simply press the acceler-
ator pedal. The parking brake is released
automatically; the indicator lamp
goes out.
Do not drive through an automatic car
wash with the Automatic Hold on and
the engine running. The system would
engage the parking brake while the vehicle
is stationary.<
Parking with Automatic Hold
The parking brake engages automatically
when you stop the vehicle and switch off
the engine. The indicator lamp
changes from green to red.
Driving
64 Provided that the remote control is
inserted in the ignition lock, you can
also release the parking brake manually
after the engine has been switched off,
refer to page 62. This function is useful in
automatic car washes, etc.
Automatic Hold is deactivated.<
When leaving the vehicle, always
release the remote control from the
detent in the ignition lock; this precaution
prevents children from disengaging the
parking brake, etc.<
For your safety
Automatic Hold is automatically deacti-
vated when
>the engine is switched off
>the system detects that the driver's seat
is not occupied while the engine is run-
ning
>the hood is opened while the engine is
running
>the luggage compartment lid is opened
with the transmission in reverse while
the engine is running, and
>when the parking brake is used to bring
the vehicle to a stop.
The indicator lamp changes from
green to red, and the AUTO P letters in the
Info Display disappear.
Before starting off again, briefly press the
button to disengage the parking brake
manually, refer to page 62, or reactivate
Automatic Hold, refer to page 63.
Before leaving the vehicle with the
engine running, always move the
automatic transmission's selector lever to
position P and ensure that the parking
brake is engaged. The vehicle could start
to roll if you fail to observe these precau-
tions.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<
Automatic Hold is automatically
deactivated whenever the system
detects any tendency for the wheels to spin
in response to slippery road surfaces. Note the status reports in the Check Control.
You can find additional information on the
Check Control on page 82.<
Malfunctions
If a malfunction occurs, the indicator
lamp lights up yellow in the Info Dis-
play and a status report will appear in the
Check Control. Please note any supple-
mentary information that appears on the
Control Display.
Releasing the parking brake
manually
You can respond to any interruptions in the
supply of electrical power, for instance, if
the battery is discharged or disconnected,
by releasing the parking brake manually.
Before proceeding to release the
parking brake manually, and each
time you park the vehicle without engaging
the parking brake, always ensure that the
automatic transmission's selector lever is
in position P, refer to page 66. Note the
range indicated in the Info Display.
If the wheel must be changed on a surface
with a more severe slope, take additional
precautions to secure the vehicle from roll-
ing e.g. with a chock, refer to page 203.
Otherwise there is a danger that the vehicle
could start to roll if parked on a steep
slope.<
Should it also be necessary to release the
automatic transmission's lockout manually,
for instance, if the battery is discharged,
always adhere to the following sequence:
1.If necessary, start by manually releasing
the parking brake
2.Then release the automatic transmis-
sion's lockout manually, refer to
page 68.
Jump-starting and towing, refer to
pages 207 and 208.
Driving
66 ized. The indicator lamp in the
Info Display lights up red
>Releasing: the parking brake is ready
for operation. The indicator
lamp in the Info Display goes out.
Automatic transmission
with Steptronic
While you can drive as with any conven-
tional automatic transmission, you also
enjoy the option of shifting manually at the
steering wheel, refer to page 67.
Transmission range selection
P R N D
Program display
S or M1 Ð M6
Buttons on the steering wheel
Press briefly to proceed through a selec-
tion sequence consisting of the automatic
program, the sport program, and the man-
ual mode.Steptronic:
Upshifting and downshifting, refer to Sport
program and manual operation.
Selecting transmission range
The selector lever is at the center
position. To select transmission
ranges D, R or N, always start by pulling
toward the steering wheel, arrow 1, then
press up or down. Note the information
provided in the Info Display.<
>Range D or R:
Press the selector lever up or down,
continuing to apply pressure to move it
past the resistance point
>Neutral N:
Press the selector lever as far as the
resistance point
>Park P:
Press button P, arrow 2.
The selector lever immediately returns to
the center position when released.
With the vehicle stationary, press the
brake pedal before shifting out of P
or N; the shift command will not be exe-
cuted unless the brake is applied: shiftlock.
To prevent the vehicle from creeping after
you select a range, maintain pressure on
Driving
74 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
illuminate to signal a following driver to
take action. In addition, it may be neces-
sary for the vehicle to downshift to maintain
the distance 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 increas-
ing 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 sys-
tem is a new technology and operates
differently from conventional cruise control
systems which you may be accustomed to,
you are strongly urged to read all of the
pages relating to this system before use.
Pay special attention to the information
contained in the Things to know about
active cruise control section in this manual
beginning on page 77.<
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 75.
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.
The system requests you to
intervene by braking or with an
evasive maneuver. The display
flashes and a chime sounds.
The active cruise control can-
not automatically restore the distance to
the vehicle driving ahead. You will find
more detailed information on page 78.
Automatic intervention by ABS
or DSC, or you actuate the
parking brake while driving. The
active cruise control now only
intervenes by braking.
Driving
76 >When you select the automatic trans-
mission's neutral range N
>When you deactivate the DSC Dynamic
Stability Control
>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, otherwise there is an accident
danger.<
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 80
>when the destination guidance system
of the navigation system is deactivated.
Press the lever up or down for approx.
1 second.
4 Resuming 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 Selecting 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
Distance 3
Distance 4
This distance is always set
when the system is used for the
first time after starting the
engine.
Use good judgment to select the
appropriate following distance given
road conditions, traffic, applicable laws
and driving recommendations for safe fol-
lowing distance.<
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Things to know about active cruise control
As with conventional cruise control
systems, active cruise control in no
way diminishes or substitutes for the
driverÕs own personal responsibility, alert-
ness and awareness in adjusting speed,
braking or otherwise controlling the vehi-
cle. The driver should decide when to use
the system on the basis of road, traffic,
visibility, and weather conditions. Active
cruise control is intended for use on high-
way-type roadways where traffic is moving
relatively smoothly. Do not use this system
in city driving; heavy traffic such as during
rush hour; on curvy, winding roads, slip-
pery roads or roads with sharp curves such
as highway off-ramps; during inclement
weather such as snow, strong rain or fog;
or when entering interchanges, service/
parking areas or toll booths. It is also
important to regulate your vehicle's speed
and distance setting within applicable legal
limits. Always be ready to take action or
apply the brakes if necessary, especially
when the system is actively following a
vehicle in front of you.<
Always remember that the range and
ability of the system does have phys-
ical limitations. It will not apply the brakes
or decelerate your vehicle when there is a
slow-moving vehicle, stopped vehicle or
stationary object ahead of you, as for
example, at a traffic light or a parked vehi-
cle. Also, the system does not react to
oncoming traffic, pedestrians or other type
of potential traffic such as a rider on horse-
back. It is also possible that the system
may not detect smaller moving objects
such as motorcycles or bicycles. Be espe-
cially alert when encountering any of these situations as the system will neither auto-
matically brake, nor provide a warning to
you. Also, be aware that every decrease in
the distance setting allows your vehicle to
come closer to a vehicle in front of you and
requires a heightened amount of alert-
ness.<
If while your vehicle is actively following
a vehicle in front of you and the vehicle
ahead speeds up or the lane ahead
becomes clear, then your vehicle will
accelerate to the speed you have selected.
Be aware that changing to a clear, unob-
structed lane will also result in your vehicle
accelerating.
Be certain to deactivate the system
when you pull into an exit lane for a
highway off-ramp.<
Also, vehicles traveling in a staggered man-
ner on a highway may cause a delay in the
system's reaction to a vehicle in front of
you or may cause the system to react to a
vehicle actually in the lane next to you.
Always be ready to take action or apply the
brakes if necessary.
Active cruise control can only decelerate
the vehicle to approx. 20 mph/30 km/h. If
the system reduces vehicle speed below
20 mph/30 km/h or if DSC/ABS is engaged
while driving, the system will automatically
deactivate.
Remember, the system cannot stop
your vehicle. In addition, the system
is deactivated whenever the driver applies
the vehicle brakes, shifts the transmission
from drive/D to neutral/N, or deactivates
DSC. After any deactivation, the system
will no longer automatically activate the
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Briefly press the button again to view the
last display.<
Fuel gauge
The fuel gauge display appears automati-
cally once the fuel level falls into the
reserve range. At the same time, the words
"Fuel reserve" appear. The tank still con-
tains approx. 2.6 gallons/10 liters of fuel.
It will not be possible to cancel the
computer display once the fuel level
drops into the reserve range. However, you
can still request a display of the travel
range. Computer, refer to page 84.<
Tank capacity: approx. 23.2 gallons/
88 liters. You can find information on refu-
eling on page 186.
If the tilt of the vehicle varies, when you are
driving in mountainous areas, for example,
the indicator may fluctuate slightly.
Refuel well before the tank is empty,
as otherwise engine functions will not
be ensured and damage can occur if you
drive down to the last drop.<
Cruising range
Displays the estimated cruising range
available with the remaining fuel. The sys-
tem calculates the cruising range based on
operating conditions and the amount of fuel
remaining in the tank. The basis for the cal-
culations is the average fuel consumption
over the preceding 20 miles/30 km.
Always refuel as soon as possible
once your range falls to below
30 miles/50 kilometers, as otherwise
engine functions are not ensured and dam-
age can occur.<
Refueling is only registered by the com-
puter for fuel amounts above approx.
1.3 gallons/5 liters.
Remaining distance
When you enter a destination in the naviga-
tion system or manually enter a distance in
the computer prior to departure, the sys-
tem can also display the distance remain-ing to your destination, refer to page 132
or 86.
The system automatically applies the dis-
tance to your destination using the route
recommended by the navigation system.
When you enter a destination in the
navigation system, any manual
entries will be overwritten no later than
once 1,640 ft/500 meters of the calculated
distance have elapsed.<
Energy Control/
Current fuel consumption
Shows the current fuel consumption. This
allows you to see whether your current
driving style is conducive to fuel economy
with minimum exhaust emissions.
Average fuel consumption
The average fuel consumption is calculated
for the time during which the engine is run-
ning.
You can use the Control Display to view
your fuel consumption rate over two differ-
ent distances, refer to Computer or Trip
computer.
Average speed
Periods with the vehicle parked and the
engine off are not included in the calcula-
tions of average speed.
Time of arrival
A display of your estimated time of arrival is
available whenever you enter a destination
in the navigation system, refer to page 132,
or enter the distance manually in the com-
puter, refer to page 86, prior to departure.
A requirement is that you have cor-
rectly set the time in the Control Cen-
ter, refer to page 88.<
Displays in the Control Display
You can activate the computer function at
any time by selecting it from the "Car data"
menu.
You have two possibilities to display infor-
mation of the computer:
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3.Turn the controller to the left or right to
select the preset speed
4.Press the controller to confirm your
entry. The speed limit function is now
active.
Switching on or off
1.Select "Limit" and confirm
2.Select "ON / OFF" and confirm. "ON /
OFF" is highlighted when the speed
limit function is activated.
Applying your current speed as the
limit
1.Select "Limit" and confirm
2.Select and confirm. The system
applies your current speed as the limit.
Limit in Info Display
If, for instance, the warning sector in the
tachometer is visible, refer to page 80, the speed limit will be indicated by a warning
sector in the speedometer, refer to arrow.
Stopwatch
Starting and stopping
1.Select and confirm
2.Select and confirm. The stopwatch
is reset to 0 and starts
3.Select and confirm. This stops the
timer.
Confirm again to reset the stopwatch to
zero.
Taking an intermediate time reading
Select "INTERM. TIME" and confirm. This
intermediate time appears below the ongo-
ing primary stopwatch count.
All of the remaining functions remain
available at all times while the stop-
watch is running. The stopwatch continues
operation in the background.<
Assistance window* for "Car data"
You can select any of the following com-
puter functions for display in the assistance
window:
>Computer >Trip computer
>Speed limit
>Stopwatch.