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61Reference
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Resuming a speed stored beforehand
Press the button, arrow 4. The last stored
speed is resumed and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
> When driving stability control systems are
intervening
> In cars with a manual transmission: when
you switch gears very sl owly or shift to neu-
tral
> In cars with an automatic transmission:
when you engage selector lever position N
> When the ignition is switched off
Displays in the instrument cluster
1Stored speed
2 Selected speed is displayed briefly
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation
are currently not met.
Calling up Check Control messages, refer to
page 76.<
Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display. You
can find more information starting on page 75.
Active cruise control*
The concept
With active cruise cont rol, you can select a
desired speed which is not only automatically maintained when driving
on open roadways, but
also varied to maintain a selected distance set-
ting 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 high-
ways or other high-speed thoroughfares. Espe-
cially on longer trips, the system can reduce
fatigue and tension, while increasing your
enjoyment of driving. Please use it safely and
responsibly.
Within the limits of its capability, the system
automatically adapts the ca r's speed to that of a
slower vehicle in front of you. You can specify
the distance to be main tained from the vehicle
in front in four stages. For safety reasons, the
distance is speed-dependent. Based on your
selected distance setti ng, the system automat-
ically decreases the thro ttle setting and lightly
applies the brakes if necessary. The vehicle
brake lamps will automatically illuminate to sig-
nal a following driver to take action. In addition,
it may be necessary for the vehicle or the driver
to downshift, depending on the kind of trans-
mission your vehicle is equipped with, to main-
tain the distance setting selected. If the vehicle
ahead speeds up or when the lane ahead
becomes clear, your vehi cle will accelerate to
the speed you have selected by increasing the
throttle setting and shifting gears automatically
or by the driver as needed. Your selected speed
will be held when driving downhill, too.
Since this active cruise control system is a new
technology and operates differently from con-
ventional cruise control systems which you may
be accustomed to, you are strongly urged to
read all of the pages re lating to this system
before use. Pay special attention to the System
limitations section beginning on page 65.
Braking sensation
>If you step on the brake pedal while the sys-
tem is braking, pedal sensation will be
slightly different from the usual.
> Possible noises during automatic braking
are normal.
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Driving
64
Warning lamp
The warning lamp comes on when
active cruise control has been auto-
matically deactivated due to a driving
speed below 20 mph or 30 km/h, an application
of the parking brake or a DSC intervention. A
message appears on the Control Display.
Resuming stored desired speed and
distance
Briefly press th e button, arrow 4.
The stored speed and distance are regained
and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
> When driving stability control systems are
intervening
> In cars with a manual transmission: when
you switch gears very slowly or shift to neu-
tral
> In cars with an automatic transmission:
when you engage selector lever position N
> When the ignition is switched off
Displays in the instrument cluster
1Stored desired speed
2 Shows yellow: vehicle detected ahead
Flashes in red: system cannot maintain dis-
tance; driver must brake the vehicle
Flashes in yellow: driving stability control
systems are intervening; cruise control is
deactivated
3 Selected distance to vehicle ahead
The indicator lights up as soon as the sys-
tem is activated. 4
Selected desired spee d is temporarily dis-
played
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation
are currently not met. Calling up Check Control
messages, refer to page 76.<
Warning lamps
The indicator 2 flashes in red; a
signal sounds.
The system indicates that you
must brake and/or maneuver the
vehicle yourself. Active cruise con-
trol cannot automatically restore the distance to
the vehicle ahead.
This indicator does not release you from your
responsibility to adapt your desired speed and
driving style to prevailing driving conditions.
The indicator 2 flashes in yellow.
The prerequisites for operating
active cruise control are not met,
e.g. as a result of ABS or DSC
interventions. Active cruise control
is deactivated. You can re activate the system, if
desired, by tapping or pulling the lever when
road and traffic conditions permit. It is not pos-
sible to resume a stored speed.
Radar sensor
The sensor's ability to detect vehicles ahead
may be restricted as a result of heavy rain, dirt,
snow or ice. If necessary, clean the radar sensor
located in the front bump er, see arrow. Be sure
to use particular care when removing any layers
of snow or ice from the sensor.
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Controls
65Reference
At a glance
Driving tips
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Navigation
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Mobility
When the radar sensor is not properly posi-
tioned, active cruise control cannot be activated
at all.Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display. You
can find more information starting on page 75.
System limitations
Always remember that the range and abil-
ity of the system does have physical limi-
tations. It will not apply the brakes or decelerate
your vehicle when there is a slow-moving vehi-
cle, stopped vehicle or stationary object ahead
of you, as for example, at a traffic light or a
parked vehicle. Also, the system does not react
to oncoming traffic, pe destrians or other types
of potential traffic such as a rider on horseback.
It is also possible th at the system may not
detect smaller moving objects such as motor-
cycles or bicycles. Be especially alert when
encountering any of these situations as the sys-
tem will neither automatically 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. <
Active cruise control is not and must not
be used as a collision avoidance/warning
system. <
If while your vehicle is actively following a vehi-
cle 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,
unobstructed 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 manner
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 brak es if necessary.
While active cruise control is capable of
braking your vehicle automatically when
you approach a slower vehicle ahead, it is
important to be aware that the ability of the sys-
tem to apply the brakes is also limited, e.g.
when you reduce your desired speed sharply.
The system cannot stop your vehicle. It uses
only a portion of brakin g system capacity and
does not utilize 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: when you approach a vehicle
traveling at a much lower speed than your own
speed such as approachin g a toll booth or when
a much slower vehicle cuts in front of you at
close range. <
Active cruise control ca n only decelerate the
vehicle to approx. 20 mph or 30 km/h.
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Controls
67Reference
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Mobility
Everything under control
Odometer, outside
temperature display, clock
1Knob in the instrument cluster
2 Outside temperature display and clock
3 Odometer and trip odometer
Knob in the instrument cluster
>To reset the trip odometer while the ignition
is switched on
> To display the time, outside temperature
and odometer briefly while the ignition is
switched off
Units of measure
To select the respective units of measure, miles
or km for the odometer as well as 7 or 6 for
the outside temperature, refer to page 71.
The setting is stored for the remote control cur-
rently in use.
Time, outside temperature display
Setting the time , refer to page73.
Outside temperature warning
When the displayed temperature sinks to
approx. +377/+3 6, a signal sounds and a
warning lamp lights up. There is an increased
risk of black ice.
Black ice can also form at temperatures
above Select the symbol. +37 7/+3 6.
You should therefore driv e carefully on bridges and shaded roads, for example, otherwise there
is an increased risk of an accident.
<
Odometer and trip odometer
Resetting trip odometer:
With the ignition switched on, press button 1 in
the instrument cluster.
When the vehicle is parked
If you still want to view the time, outside tem-
perature and odometer re ading briefly after the
remote control has been taken out of the igni-
tion lock:
Press button 1 in the instrument cluster.
Tachometer
Never force the engine speed up into the red
warning field, see arrow. In this range, the fuel
supply is interrupted to protect the engine.
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Everything under control
68
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control Dis-
play.
Check coolant level, refer to page215.
Energy Control*
Displays the current fu el consumption. This
allows you to see whether your current driving
style is conducive to fuel economy with mini-
mum exhaust emissions.
Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 210 7/1006 and approx. 300 7/
150 6.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 16.1 US gallons/
61 liters.
You can find information on refueling on
page 191.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
Once the fuel level ha s fallen to the reserve
zone, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control Dis-
play.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur. <
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Controls
75Reference
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Mobility
1.Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the date and the word "SET".
2. Press button 2.
3. Use button 1 to set the day of the month.
4. Press button 2 to confirm the entry.
5. Set the month and the ye a r i n t h e s a m e w a y .
6. Press button 2.
The system stores the new date.
Via iDrive
iDrive, for operating principle refer to page 16.
1. "Settings"
2. "Time/Date"
3. "Date:"
4. Turn the controller unt il the desired day is
displayed, and then press the controller.
5. Create the necessary settings for the
month and year.
The date is stored.
Setting the date format
iDrive, for operating principle refer to page 16.
1. "Settings"
2. "Time/Date" 3.
"Format:"
4. Select the desired format.
The date format is stored.
Check Control
The concept
The Check Control monitors vehicle functions
and alerts you to any malfunctions in the sys-
tems monitored. A Ch eck Control message
involves the indicator and warning lamps in the
instrument cluster, an ac oustic signal if applica-
ble, and text messages on the Control Display.
Indicator and warning lamps
Indicator and warning la mps can light up in a
variety of combinations and colors.
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Everything under control
76
indicates that Check Control messages have
been stored. You can view the Check Control
messages whenever it is convenient for you.
Explanatory text messages
Text messages at the u pper edge of the Control
Display explain the meaning of the displayed
indicator and warning lamps.
For most Check Control messages, you can
view more information later, e.g. regarding the
cause of a malfunction and how to respond;
refer to the information provided below.
In urgent cases, this information will be shown
as soon as the corresponding lamp comes on.
To exit the displayed information:
Move the controller to the left.
Hiding Check Control messages
Press the button in th e turn indicator lever.
Some Check Control messages are displayed
until the malfunctions have been rectified. They
cannot be hidden. If seve ral malfunctions occur
at the same time, they are displayed in succes-
sion.
They are marked with the symbol shown
here.
Other messages are automatically hidden after
approx. 20 seconds, but are kept in memory. They are marked with the symbol shown
here.
Viewing stored Check Control
messages
1.Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the words "CHECK CONTROL".
2. Press button 2.
"CHECK OK" appears if there are no Check
Control messages.
If a Check Control message has been
stored, the corresponding lamp comes on.
It is accompanied by a text message on the
Control Display.
3. Push button 1 to check for other messages.
4. Press button 2.
The display again shows the outside tem-
perature and the time.
Displaying stored Check Control
messages
iDrive, for operating pr inciple refer to page16.
1. "Vehicle Info"
2. "Vehicle status"
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Controls
77Reference
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Mobility
3."Check Control"
4. Select the text message.
Speed limit
You can enter a speed, and a Check Control
message will indicate when you reach this
speed. This enables you, for example, to
receive warnings if you exceed a speed limit in
an urban area.
You are only warned of reaching this speed a
second time if your vehi cle speed falls below it
again by at least 3 mph or 5 km/h.
Displaying, setting or changing the
limit
iDrive, for operating principle refer to page 16.
1. "Settings"
2. "Limit"
3. "Limit:"
4. Turn the controller until the desired limit is
displayed.
5. Press the controller.
The speed limit is stored.
Applying your current speed as the
limit
iDrive, for operating pr inciple refer to page16.
1. "Settings"
2. "Limit"
3. "Select current speed"
4. Press the controller.
The system adopts your current speed as the
limit.
Activating/deactivating the limit
iDrive, for operating pr inciple refer to page16.
1. "Settings"
2. "Limit"
3. "Limit warning"
4. Press the controller.
The limit warning is switched on.
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