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follow this action within the given scope and 
can also accelerate from a complete stop if the 
vehicle ahead of you drives off again shortly 
thereafter. During braking, your vehicle brake 
lamps will automatically illuminate to alert a fol-
lowing driver to take action. In addition, it may 
be necessary for your vehicle to downshift the 
automatic transmission to maintain the dis-
tance setting selected. As soon as the road in 
front of you has no moving vehicles, the system 
will accelerate to your desired speed. This set 
speed is also maintained on downhill grades, 
however the vehicle speed can drop below the 
set speed when driving uphill if the engine out-
put is not sufficient.
Active cruise control cannot detect stop 
signs, red lights, or any object that is 
stopped or is blocking the road.
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 operates differently from con-
ventional cruise control systems which you may 
be accustomed to, it is necessary that you read 
all of the pages relating to this system before 
use. Carefully read and observe the information 
on the system limitations beginning on page71 
to obtain a good command of the system and its 
range of applications.<
Brake pedal feel
When the system brakes and you also depress 
the brake pedal, a somewhat different braking 
feel results.
Professional* navigation system
If a navigation DVD is in the drive, refer to 
page132, within limits the system adjusts the 
accelerating and braking behavior of the vehicle 
to the road you are driving on.
To ensure that the system is informed of 
the current course of the road, always use 
the latest navigation DVD if possible.<
When the vehicle position is unknown, e. g. 
when you leave the map area, this influence of 
the navigation system is not available.
Applications
Please try the system first during sparse traffic 
and clear road conditions so that you can get 
used to the system. After you have experience 
and understand the system, only then use it 
during normal traffic.
As with conventional cruise control systems, 
active cruise control in no way reduces or sub-
stitutes for the driver's own personal experi-
ence, responsibility, alertness and awareness in 
adjusting speed, braking or otherwise control-
ling the vehicle. 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 highway-type 
roadways where traffic is moving relatively 
smoothly as well as in slow-moving traffic. Do 
not use the system in city driving; in complex 
driving situations; heavy traffic such as during 
rush hour; on curvy, winding roads, slippery 
roads or roads with sharp curves such as high-
way 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, espe-
cially when the system is actively following a 
vehicle in front of you. Otherwise, driving condi-
tions can result which lead to a violation of the 
law or elevated risk of an accident.
The minimum initial activation speed is 20 mph/ 
30 km/h, and the maximum speed is 110 mph/
180 km/h. However, you can also activate the 
system while stopped, refer to While stopped, 
page69. 

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Use good judgment to select the appro-
priate following distance, given road con-
ditions, traffic, applicable laws and state driving 
recommendations for safe following distance. 
Otherwise, a violation of the law or risk of an 
accident could result.<
Interrupting cruise control
Press the lever upward or downward, and with 
the vehicle stopped also depress the brake 
pedal. The marking in the speedometer 
changes color and the distance indicator goes 
out.
In addition, the system is automatically inter-
rupted:
>when you apply the vehicle brakes
>when you shift the transmission
>when DTC is activated or DSC is deacti-
vated
>when DSC comes on
>when you apply the parking brake
>when you release the safety belt and open 
the driver's door with the vehicle stopped
>when the system does not recognize any 
objects for an extended period of time, e. g. 
on infrequently traveled roads without a 
shoulder or guard rails, or if the radar sensor 
is covered with dirt, refer to page70
If the system is interrupted, then it is nec-
essary for the driver to actively intervene 
by braking and steering. Otherwise, there is a 
risk of an accident.<
Resuming stored desired speed and 
distance
While driving
Press button4.
The displays appear in the instrument cluster.
While stopped
Before leaving the vehicle with the engine 
running, engage position P of the auto-
matic transmission and apply the parking brake. 
Otherwise the vehicle can roll.<
If a detected vehicle in front of you brakes to a 
complete stop and your vehicle has also been 
braked to a complete stop by the system:
>If the vehicle in front of you drives off while 
the marking1 for the desired speed in the 
speedometer is green, your vehicle will 
accelerate without you having to do any-
thing.
>If the vehicle in front of you drives off while 
the marking1 is orange, you briefly depress 
the accelerator pedal or press button4. 
Rolling bars in the distance indicator3 
mean that the vehicle in front of you has 
driven off.
If you are stopped behind a vehicle with the 
brake pedal depressed and the system is inter-
rupted or deactivated:
1.Press button4 to activate a stored desired 
speed or select a desired speed with the 
lever, arrow1 or arrow2.
2.Release the brake pedal.
3.If the vehicle in front of you drives off, briefly 
depress the accelerator pedal or press 
button4.
Deactivating system
>Press the lever upward or downward twice 
while driving.
>When stopped, do the same with the brake 
pedal depressed.
>Switch off the ignition.
The displays turn off, and the stored desired 
speed and distance are deleted. 

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Rules. Operation is subject to the following two 
conditions:
>This device must not cause harmful inter-
ference, and>this device must accept any interference 
received, including interference that may 
cause undesired operation.
Any unauthorized modifications or 
changes to these devices could void the 
user’s authority to operate this equipment.<
System limitations
As with conventional cruise control sys-
tems, active cruise control in no way 
diminishes or substitutes for the driver's own 
personal responsibility, alertness and aware-
ness in adjusting speed, braking or otherwise 
controlling the vehicle. 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 
highway-type roadways where traffic is moving 
relatively smoothly. Do not use this system in 
city driving; in complex driving situations; on 
curvy, winding roads, slippery 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, ser-
vice/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 sys-
tem is actively following a vehicle in front of 
you.<
Always remember that the range and abil-
ity of the system do have physical limita-
tions. For example, the system may not detect 
vehicles driving ahead if they suddenly brake 
heavily in stop-and-go traffic during accelera-
tion. The system will not apply the brakes or 
slow your vehicle when a very slow-moving vehicle, stopped vehicle or stationary object is 
in the lane ahead of you, for example when 
approaching a traffic light or parked vehicle or 
when a vehicle is stalled in your lane. Also, the 
system does not react to oncoming traffic, 
pedestrians or other types of potential traffic 
such as a rider on horseback. It is also possible 
that the system may not detect smaller moving 
objects such as motorcycles or bicycles. Be 
especially alert when encountering any of these 
situations as the system will neither automati-
cally 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 alertness.<
The system cannot allow the vehicle to drive off 
automatically in situations that make driving off 
considerably more difficult, e.g., on steep uphill 
grades, with a heavy trailer or before raised 
areas in the road.
Near radio astronomy stations, the system 
radar is deactivated at speeds under 20 mph/
30 km/h due to legal regulations.
Be certain to interrupt the system when 
you pull into an exit lane for a highway 
offramp.<
Also, vehicles traveling in a staggered manner 
on a highway may cause a delay in the system's  

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In approaching a curve, it is possible that active 
cruise control might react briefly to a vehicle in 
the adjacent lane. In addition, the system can 
sense if your vehicle is in a curve and may not 
accelerate. If your vehicle decelerates in either 
case, you can choose to overcome the deceler-
ation by briefly pressing the accelerator pedal.
Driver interventions and your 
responsibility
Anytime the driver presses down on the 
accelerator pedal, any braking action by 
the system is interrupted and the distance indi-
cator goes out until the pedal is fully released. 
As soon as you fully release the accelerator, the 
system will again control your cruising speed 
and distance setting. While driving with the sys-
tem activated, resting your foot on the acceler-
ator pedal will cause the system not to brake 
even when necessary. Be certain that floormats 
or other objects on the vehicle floor do not inter-
fere with movement of the accelerator pedal.<
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. It 
uses only a portion of braking system capacity 
and does not utilize the full capacity of the vehi-
cle braking system. Therefore, the system can-
not decrease your speed due to large differ-
ences in speed between your vehicle and the 
vehicle ahead. Example: 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.< 

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Energy Control
Displays the current fuel consumption. This 
allows you to see whether your current driving 
style is conducive to fuel economy with mini-
mum exhaust emissions.
Fuel gauge
Fuel tank capacity: approx. 18.5 US gal/
70 liters, including the reserve capacity of 
approx. 2.1 US gal/8 liters.
550i: approx. 2.6 US gal/10 liters reserve 
capacity. 
You will find information on refueling on 
page200.
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
After the reserve quantity has been reached, a 
message briefly appears on the Control Display; 
the remaining range is shown in the computer. 
Below a range of approx. 30 miles/50 km, the 
message remains on the Control Display.
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.<
Computer
Displays in instrument cluster
Press the button on the turn signal lever.
The following information is displayed in the 
specified order:
>Cruising range
>Average speed
>Average fuel consumption
>No information
Cruising range
Displays the estimated cruising range available 
with the remaining fuel. The range is projected 
based on the driving style over the last 20 miles/
30 km.
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.<
Average speed
Periods with the vehicle parked and the engine 
switched off are not included in the calculations 
of average speed.
To reset average speed: press BC button on 
turn signal lever for approx. 2 seconds.
Average fuel consumption
The average fuel consumption is calculated for 
the time during which the engine is running. 

Controls Overview
76 To reset average fuel consumption: press BC 
button on turn signal lever for approx. 2 sec-
onds.
For different routes
You can display the average speed and average 
consumption for two different routes on the 
Control Display, refer to the following and to 
Trip computer
*.
Displays on the Control Display
You can also call up the computer via iDrive. 
For operating principle refer to page16.
1."Vehicle Info"
2."Onboard info" or "Trip computer"
Displays on the "Onboard info":
>Cruising range
>Distance from destination
>Estimated time of arrival, provided that a 
destination was entered in the navigation 
system
*, refer to page133.Displays on the "Trip computer":
>Departure time
>Trip duration
>Trip distance
Both displays show:
>The average speed and
>the average fuel consumption.
Resetting the fuel consumption and 
speed
You can reset the values for the average speed 
and average fuel consumption:
1.Select the respective menu item and press 
the controller.
2.To confirm your selection, press the con-
troller again.
Resetting the Trip computer
1."Vehicle Info"
2."Trip computer"
3."Reset"
All values are reset.
Setting the units of measure
You can change the units for fuel consumption, 
route/distance, temperature and pressure.
iDrive, for operating principle refer to page16. 

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1."Settings"
2."Language/Units"
3.Select the desired menu item.
4.Select the desired unit.
The settings are stored for the remote key cur-
rently in use.
Service requirements
The remaining driving distance and the date for 
the next maintenance are displayed briefly with 
the ignition switched on.
Your BMW Service Advisor can deter-
mine your vehicle's current service 
requirements by reading out the data stored in 
the remote control.<
Additional information
You can view more detailed information by 
using the Control Display, for operating princi-
ple refer to page16.1."Vehicle Info"
2."Vehicle status"
3."Service required"
Required maintenance procedures and legally 
mandated inspections are displayed.
You can request more detailed information on 
every entry:
Select the entry and press the controller.
To exit from the menu:
Move the controller to the left.
Symbols
No service is currently required. 
The deadline for service or a legally man-
dated inspection is approaching. Please 
arrange a service appointment.
The service deadline has already passed. 
Entering deadlines for legally required 
inspections*
Make sure the date on the Control Display is set 
correctly, refer to page79, otherwise the effec-
tiveness of CBS Condition Based Service is not 
ensured.
iDrive, for operating principle refer to page16.
1."Vehicle Info"
2."Vehicle status" 

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2."Settings"
Setting the time
iDrive, for operating principle refer to page16.
1."Settings"
2."Time/Date"
3."Time:"
4.Turn the controller until the desired hours 
are displayed, and then press the controller.
5.Turn the controller until the desired minutes 
are displayed, and then press the controller.
The time is stored.
Setting the time format
iDrive, for operating principle refer to page16.
1."Settings"
2."Time/Date"
3."Format:"
4.Select the desired format and press the 
controller.
The time format is stored.
Date
The settings are stored for the remote control 
currently in use, refer also to Personal Profile on 
page26.
Setting date
To set the dd/mm or mm/dd date format, refer 
to Setting date format below.
iDrive, for operating principle refer to page16.
1."Settings"
2."Time/Date"
3."Date:"
4.Turn the controller until 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 date format
iDrive, for operating principle refer to page16.
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 functions in the 
vehicle and issues a message if there is a mal-
function in the monitored systems. This kind of 
Check Control message consists of indicator