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EnglishDriving comfort -> Active Cruise Control with Stop&Go function, ACC for your BMW X4 2014-2018
Controls
Driving comfort
Driving comfort
Safety information
Vehicle features and options
WARNING
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and
systems, the applicable country provisions
must be observed.
The system does not release from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is a risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively intervene in the re‐
spective situations.◀
WARNING
An unsecured vehicle can begin to move
and possibly roll away. There is a risk of an ac‐
cident. Before exiting, secure the vehicle
against rolling.
Active Cruise Control with
Stop&Go function, ACC
Concept
In order to ensure that the vehicle is secured
against rolling away, observe the following:
Using this system, a desired speed and a dis‐
tance to a vehicle ahead can be adjusted using
the buttons on the steering wheel.
▷
▷
Set the parking brake.
On uphill grades or on a downhill slope,
turn the front wheels in the direction of the
curb.
The system maintains the desired speed on
clear roads. For this purpose, the vehicle ac‐
celerates or brakes automatically.
▷
On uphill grades or on a downhill slope,
also secure the vehicle, e.g., with a wheel
chock.◀
If a vehicle is driving ahead of you, the system
adjusts the speed of your vehicle within the
given system limits so that the set distance to
the vehicle ahead is maintained.
WARNING
The distance can be adjusted in several steps.
For safety reasons, it depends on the respec‐
tive speed.
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is a risk
of an accident. Adjust the desired speed to the
traffic conditions. Watch traffic closely and ac‐
tively intervene in the respective situations.◀
If the vehicle ahead of you brakes to a halt, and
then proceeds to drive again within a brief pe‐
riod, the system is able to detect this within the
given system limits.
WARNING
Risk of accident due to too high speed
differences to other vehicles, e.g., in the fol‐
lowing situations:
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
▷
When fast approaching a slowly moving
vehicle.
▷
Suddenly swerving vehicle onto the own
lane.
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Driving comfort
Controls
▷
When fast approaching standing vehicles.
Camera
There is a risk of injuries or danger to life.
Watch traffic closely and actively intervene in
the respective situations.◀
Overview
Buttons on the steering wheel
Press but‐
ton
Function
The camera is installed near the interior mirror.
Keep the windshield in the area behind the in‐
terior mirror clean and clear.
Cruise control on/off, interrupt,
refer to page 135
A dirty or covered area in front of the interior
mirror may hinder the detection of vehicles.
Store, maintain speed, refer to
page 136
If necessary, clean the area in front of the inte‐
rior mirror, for example, carefully remove salt
residue in the winter.
Call up speed, continue cruise
control, refer to page 137
Reduce distance, refer to
page 137
Functional requirements
Speed range
Increase distance, refer to
page 137
The system is best used on well-constructed
roads.
Rocker switch:
Set speed, refer to page 136
The minimum speed that can be set is
20 mph/30 km/h. The maximum speed that
can be set depends on the vehicle.
Radar sensor
The system can also be activated when sta‐
tionary.
A radar sensor is located in the front bumper
for detecting vehicles on the road ahead of the
vehicle.
Switching on/off and interrupting
cruise control
Switching on
Press button on the steering wheel.
The indicator lights in the instrument cluster
light up and the mark in the speedometer is set
to the current speed.
Cruise control can be used.
Always keep radar sensor clean and unob‐
structed.
DSC will be switched on, if needed.
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Controls
Driving comfort
Switching off
Setting the speed
To switch off the system while standing, step
on brake pedal at the same time.
Maintaining/storing the speed
Press button on the steering wheel.
▷
▷
If active: press twice.
If interrupted: press once.
The displays go out. The stored desired speed
is deleted.
Interrupting manually
Press the rocker switch while the system is in‐
terrupted.
Press button on the steering wheel.
If interrupting the system while stationary,
press on the brake pedal at the same time.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
Automatic interruption
The system is automatically interrupted in the
following situations:
The stored speed is displayed in the speedom‐
eter and briefly in the instrument cluster, refer
to page 137.
▷
▷
When the driver applies the brakes.
DSC will be switched on, if needed.
When selector lever position D is disen‐
gaged.
The speed can also be stored by
pressing a button.
▷
When DTC is activated or DSC is deacti‐
vated.
Press button.
▷
▷
When DSC is actively controlling stability.
Changing the speed
When SPORT+ is activated with Driving
Dynamics Control.
▷
▷
If the safety belt and the driver's door are
opened while the vehicle is standing still.
If the system has not detected objects for
an extended period, for example, on a road
with very little traffic without curb or
shoulder markings.
▷
▷
If the detection range of the radar is dis‐
rupted, for example, by dirt or heavy fog.
Press the rocker switch up or down repeatedly
until the desired speed is set.
After a longer stationary period when the
vehicle has been braked to a stop by the
system.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.
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Driving comfort
Controls
▷
▷
Each time the rocker switch is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.
Make sure that the difference between current
speed and stored speed is not too large before
calling up the stored speed. Otherwise, unin‐
tentional braking or accelerating may occur.
Each time the rocker switch is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
In the following cases, the stored speed value
is deleted and cannot be called up again:
▷
▷
When the system is switched off.
When the ignition is switched off.
Hold the rocker switch in position to repeat the
action.
Calling up stored speed and distance
Press button with the system
switched on.
Adjusting distance
Safety information
Displays in the instrument cluster
Desired speed and stored speed
WARNING
The system does not release from the
personal responsibility. Due to the system lim‐
its, braking can be late. There is a risk of acci‐
dents or risk of property damage. Be aware to
the traffic situation at all times. Adjust the dis‐
tance to the traffic and weather conditions and
maintain the prescribed safety distance, possi‐
bly by braking.◀
▷
Marking lights up green:
system is active, the mark‐
ing indicates the desired
speed.
▷
Marking lights up orange:
system is interrupted, the
marking indicates the stored
speed.
Reduce distance
▷
The marking does not light up: the system
is switched off.
Press button repeatedly until the de‐
sired distance is set.
Instrument cluster will display selected dis‐
tance, refer to page 137.
Brief status display
Selected desired speed.
Increase distance
Press button repeatedly until the de‐
sired distance is set.
If no speed is indicated, it is possible that the
conditions necessary for operation are not cur‐
rently fulfilled.
Instrument cluster will display selected dis‐
tance, refer to page 137.
Distance to vehicle ahead of you
Selected distance to the vehicle ahead of you
is shown.
Continuing cruise control
General information
An interrupted cruise control can be continued
by calling up the stored speed.
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Controls
Driving comfort
pressing on the brake pedal or accelerator
pedal.
Distance display
Distance 1
Distance 2
Distance 3
Distance 4
Symbol flashes red and a signal
sounds:
You are requested to intervene by
braking or make an evasive maneuver.
Displays in the Head-up Display
Some system information can also be dis‐
played in the Head-up Display.
This value is set automatically after
the system is switched on.
Distance information
The symbol is displayed when the dis‐
tance from the vehicle traveling ahead
is too short.
The system has been interrupted or
distance control is temporarily sup‐
pressed because the accelerator
pedal is being pressed; a vehicle
was not detected.
The distance information is active under the
following circumstances:
▷
▷
Active Cruise Control switched off.
Distance control is temporarily sup‐
pressed because the accelerator
pedal is being pressed; a vehicle
was detected.
Display in the Head-up Display selected,
refer to page 96.
▷
▷
Distance too short.
Speed greater than approx.
40 mph/70 km/h.
Detected vehicle
Symbol lights up orange:
System limits
A vehicle has been detected ahead of
you.
Detection range
Rolling bars: the detected vehicle has driven
away.
ACC does not accelerate. To accelerate, acti‐
vate ACC by briefly stepping on the accelera‐
tor pedal, pressing the RES button or rocker
switch.
Indicator/warning lights
Symbol flashes orange:
The detection capacity of the system and the
automatic braking capacity are limited.
The conditions are not adequate for
the system to work.
Two-wheeled vehicles for instance might not
be detected.
The system was deactivated but applies the
brakes until you actively resume control by
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Driving comfort
Controls
Deceleration
Cornering
The system also does not decelerate in the fol‐
lowing situations:
▷
For pedestrians or similarly slow-moving
road users.
▷
▷
▷
For red traffic lights.
For cross traffic.
For oncoming traffic.
Swerving vehicles
If the desired speed is too high for a curve, the
speed is reduced slightly, although curves can‐
not be anticipated in advance. Therefore, drive
into a curve at an appropriate speed.
In tight curves the system offers only restricted
detection where a vehicle ahead of you might
be detected late or not at all.
A vehicle driving in front of you is not detected
until it is completely within the same lane as
your vehicle.
If a vehicle driving ahead of you suddenly
swerves into your lane, the system may not be
able to automatically restore the selected dis‐
tance. This also applies to major speed differ‐
ences to vehicles driving ahead of you, e.g.,
when rapidly approaching a truck. When a ve‐
hicle driving ahead of you is reliably detected,
the system requests that the driver intervene
by braking and carrying out evasive maneu‐
vers, if needed.
When you approach a curve the system may
briefly report vehicles in the next lane due to
the bend of the curve. If the system deceler‐
ates you may compensate it by briefly acceler‐
ating.
After releasing the accelerator pedal the sys‐
tem is reactivated and controls speed inde‐
pendently.
Driving away
In some situations, the vehicle cannot drive off
automatically; for example:
▷
▷
On steep inclines.
From bumps in the road.
In these cases, step on the accelerator pedal.
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Controls
Driving comfort
Weather
Safety information
In the event of unfavorable weather and light
conditions, e.g., if there is rain, snowfall, slush,
fog or glare, this may result in poorer recogni‐
tion of vehicles as well as short-term interrup‐
tions for vehicles that are already detected.
Drive attentively, and react to the current traffic
situation. If necessary, intervene actively, e.g.,
by braking, steering or evading.
WARNING
The system does not release from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is a risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively intervene in the re‐
spective situations.◀
Engine power
WARNING
The desired speed is also maintained downhill,
but may not be maintained on uphill grades if
engine power is insufficient.
The use of the system can lead to an in‐
creased risk of accidents in the following situa‐
tions:
Malfunction
▷
▷
▷
On winding roads.
In heavy traffic.
The system cannot be activated if the radar
sensor is not aligned correctly. This may be
caused by damage incurred, e.g., during park‐
ing.
On slippery roads, in fog, snow or rain, or
on a loose road surface.
There is a risk of accidents or risk of property
damage. Only use the system if driving at con‐
stant speed is possible.◀
A Check Control message is displayed if the
system fails.
The function for detecting and responding
when approaching stationary vehicles may be
limited in the following situations:
WARNING
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is a risk
of an accident. Adjust the desired speed to the
traffic conditions. Watch traffic closely and ac‐
tively intervene in the respective situations.◀
▷
During calibration of the camera immedi‐
ately after vehicle delivery.
▷
If the camera is malfunctioning or dirty. A
Check Control message is displayed.
Overview
Cruise control
Buttons on the steering wheel
Button Function
Concept
Using this system, a desired speed can be ad‐
justed using the buttons on the steering wheel.
The system maintains the desired speed. The
system accelerates and brakes automatically
as needed.
Cruise control on/off, interrupting,
refer to page 141.
Store speed, refer to page 141.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
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