2019-2024 BMW 1 Series 4 Door CONTROLS -> Driver Assistance Systems User Manual
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CONTROLS -> Driver Assistance Systems for Your BMW 1 Series 4 Door Third Generation (2019-2024)

Driver Assistance Systems  
CONTROLS  
Driver Assistance Systems  
Operation  
Vehicle equipment  
Switching on  
This chapter describes all standard, country-spe‐  
cific and optional equipment available for the  
model series. It may therefore describe equip‐  
ment and functions which are not installed in  
your vehicle, for example on account of the spe‐  
cial equipment selected or the country specifica‐  
tion. This also applies to safety-relevant func‐  
tions and systems. Please comply with the  
relevant laws and regulations when using the  
corresponding functions and systems.  
Press the button on the steering wheel.  
The current speed is adopted as the speed limit.  
When switching on at a standstill or driving at low  
speed, 30 km/h/20 mph is set as the speed limit.  
The speedometer marker is set to the current  
speed.  
When activating the speed limit it is possible that  
Dynamic Stability Control DSC will be switched  
on and the drive mode switched to COMFORT.  
Manual Speed Limiter  
Switching off  
Principle  
Press the button on the steering wheel.  
The system can be used to set a speed limit so  
that speed restrictions are not exceeded.  
The system switches off automatically in the  
following situations, for example:  
General  
▷ When switching the engine off.  
The system enables speeds from a value of  
30 km/h/20 mph and above to be set as a speed  
limit. Below the set speed limit, the vehicle can  
be driven without restriction.  
▷ When switching on Cruise Control.  
▷ When activating some programs using the  
Driving Experience Control.  
The displays turn off.  
Overview  
Interrupting  
Buttons on the steering wheel  
The system is interrupted when reverse gear is  
engaged or the transmission is in neutral.  
Button Function  
System on/off.  
Store current speed.  
Speed Limit Assist, see page 206:  
adopt the suggested speed manually.  
Rocker switch:  
Changing the speed limit, see  
page 195.  
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Change speed limit  
Warning when the speed limit is  
exceeded  
Visual warning  
If the speed limit is exceeded: the indica‐  
tor lamp in the instrument cluster flashes  
for as long as you exceed the set speed  
limit.  
Acoustic warning  
▷ A signal sounds if you inadvertently exceed  
the set speed limit.  
Press the rocker switch repeatedly up or down  
until the desired speed is set.  
▷ Each time the rocker switch is pressed to the  
resistance point, the speed limit is increased  
or decreased by 1 km/h, 1 mph.  
▷ If the speed limit is reduced to below the  
driven speed during the journey, the warning  
sounds after a little time.  
▷ Each time the rocker switch is pressed be‐  
yond the resistance point, the speed limit  
changes to the next multiple of 10 km/h on  
the km/h display or the next multiple of 5 mph  
on the mph display in the speedometer.  
▷ If you intentionally exceed the speed limit by  
fully pressing the accelerator pedal, no warn‐  
ing sounds.  
Displays in the instrument  
cluster  
If the set speed limit has been reached or unin‐  
tentionally exceeded, for example when driving  
downhill, there is no active brake intervention.  
Indicator lamp  
If you set a speed during the journey which is be‐  
low the current speed, the vehicle rolls to the set  
speed limit.  
▷ If the indicator lamp is illuminated: the  
system is switched on.  
The current speed can also be stored by press‐  
ing the button:  
▷ If the indicator lamp is flashing: set  
speed limit is exceeded.  
▷ Grey indicator lamp: the system is interrup‐  
ted.  
Press the button on the steering wheel.  
Exceeding the speed limit  
The system gives a warning if the travelling  
speed exceeds the set speed limit.  
Status display  
With the corresponding equipment, the set  
speed limit is displayed digitally for a short time.  
You can intentionally exceed the speed limit.  
There is no warning in such a case.  
Cruise Control  
To exceed the set speed limit intentionally, fully  
depress the accelerator pedal.  
The limit automatically becomes active again as  
soon as the current speed falls below the set  
speed limit.  
Principle  
This system allows a desired speed to be set us‐  
ing the buttons on the steering wheel. The de‐  
sired speed is then maintained by the system. It  
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does this by automatically accelerating and brak‐  
ing the vehicle as necessary.  
WARNING  
The desired speed may be set incorrectly by  
mistake or called up accidentally. There is a risk  
of accident. Adjust the desired speed to the  
traffic conditions. Observe the traffic situation  
and intervene actively if the situation warrants it.  
General  
The system can be activated from  
30 km/h/20 mph.  
Depending on the vehicle setting, the character‐  
istics of Cruise Control may change in certain  
areas, for example acceleration in ECO PRO  
drive mode is less pronounced.  
Overview  
Buttons on the steering wheel  
Safety notes  
Button Function  
WARNING  
Cruise Control on/off, see page 196.  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
To interrupt Cruise Control, see  
page 197.  
To resume Cruise Control with last  
setting, see page 198.  
Stores a speed, see page 197.  
Speed Limit Assist, see page 206:  
adopt the suggested speed manually.  
WARNING  
Rocker switch:  
The risk of an accident may increase if the sys‐  
tem is used in certain situations, such as:  
To set the speed, see page 197.  
▷ On stretches of road with many corners  
and bends.  
Switching Cruise Control on/off  
▷ In heavy traffic.  
Switching on  
▷ If the road is icy, if there is fog or snow, in  
wet conditions or on a loose road surface.  
Press the button on the steering wheel.  
There is a risk of accident or material damage.  
Only use the system if it is possible to drive at a  
constant speed.  
The indicator lamps are illuminated in the instru‐  
ment cluster and the marker in the speedometer  
is positioned at the current speed.  
Cruise Control is active. The driven speed is  
maintained and stored as the desired speed.  
Dynamic Stability Control DSC is switched on, if  
necessary.  
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While the system is interrupted, press the rocker  
switch up or down once.  
Switching off  
Press the button on the steering wheel.  
When the system is switched on, the current  
speed is maintained and stored as the desired  
speed.  
The displays turn off. The stored desired speed  
is deleted.  
The saved speed is displayed, see page 198, in  
the speedometer and briefly in the instrument  
cluster, where applicable.  
Interrupting Cruise Control  
Interrupting manually  
Dynamic Stability Control DSC is switched on, if  
necessary.  
Press the button while the system is ac‐  
tivated.  
The speed can also be stored by pressing the  
button.  
Press the button.  
Interrupting automatically  
The system is interrupted automatically in the  
following situations:  
Changing the speed  
▷ If the driver brakes.  
▷ Steptronic transmission: if the selector lever  
is moved out of selector lever position D.  
▷ Manual transmission: if the clutch is pressed  
for a few seconds or released with no gear  
engaged.  
▷ Manual transmission: if too high a gear has  
been engaged for the speed.  
▷ If Dynamic Traction Control DTC is activated  
or Dynamic Stability Control DSC deactiva‐  
ted.  
Press the rocker switch repeatedly up or down  
until the desired speed is set.  
If the system is active, the displayed speed is  
stored and the vehicle adjusts to the stored  
speed when the road is clear.  
▷ If Dynamic Stability Control DSC intervenes.  
Setting the speed  
▷ Each time the rocker switch is pressed to the  
resistance point, the desired speed is in‐  
creased or decreased by 1 km/h, 1 mph.  
Maintaining and saving the speed  
▷ Each time the rocker switch is pressed be‐  
yond the resistance point, the desired speed  
changes to the next multiple of 10 km/h on  
the km/h display or the next multiple of 5 mph  
on the mph display in the speedometer.  
The maximum speed which can be set de‐  
pends on the vehicle.  
▷ When the rocker switch is pressed to the re‐  
sistance point and then held there: the vehi‐  
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cle accelerates or decelerates without the  
need to press the accelerator pedal.  
The symbol is displayed when the set  
desired speed has been reached.  
When the rocker switch is released, the vehi‐  
cle maintains the final speed. Pressing be‐  
yond the resistance point accelerates the ve‐  
hicle more rapidly.  
System limits  
The desired speed is also maintained when driv‐  
ing downhill. The vehicle may drive slower than  
the desired speed on uphill gradients if there is  
not enough engine power.  
Resuming Cruise Control  
If Cruise Control is interrupted, it can be resumed  
by calling up the stored speed.  
In ECO PRO drive mode, it is possible that the  
vehicle will drive faster or slower than the desired  
speed setting in some situations, for example on  
downward or upward gradients.  
Before calling up the stored speed, make sure  
that the difference between the current speed  
and the stored speed is not too great. Otherwise,  
there may be unintentional braking or accelera‐  
tion.  
Active Cruise Control with  
Stop&Go function ACC  
With the system interrupted, press the  
button.  
Cruise Control is resumed with the stored values.  
Principle  
In the following instances, the stored speed is  
deleted and therefore cannot be called up again:  
This system allows you to set a desired speed  
and a desired distance from the vehicle in front,  
using the buttons on the steering wheel.  
▷ When the system is switched off.  
When the road ahead is clear, the system main‐  
tains the desired speed. The vehicle accelerates  
or brakes automatically.  
▷ When drive-ready state is switched off.  
Displays in the instrument  
cluster  
If there is a vehicle driving in front, the system  
adapts the speed of your vehicle in order to  
maintain the set distance from the vehicle ahead.  
The speed is adapted as far as the given situa‐  
tion allows.  
Indicator lamp  
▷ Green indicator lamp: the system is  
active.  
▷ Grey indicator lamp: the system is in‐  
terrupted.  
General  
A radar sensor in the front bumper and a camera  
on the rear-view mirror are used to detect vehi‐  
cles ahead.  
▷ No indicator lamp: the system is switched off.  
Depending on the vehicle setting, the character‐  
istics of Cruise Control may change in certain  
areas, for example acceleration in ECO PRO  
drive mode is less pronounced.  
Status display  
The desired speed selected is permanently dis‐  
played in the instrument cluster.  
The distance can be set in several stages and for  
safety reasons is dependent on the respective  
speed.  
Displays in the Head-Up Display  
Some information from the system can also be  
shown in the Head-Up Display.  
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If the vehicle ahead brakes to a standstill and  
sets off again shortly afterwards, the system is  
able to recognise this as far as the given condi‐  
tions allow.  
WARNING  
There is a risk of accident if the difference in  
speed relative to other vehicles is excessively  
high. This may occur, for example, in the  
following situations:  
Safety notes  
▷ When quickly approaching a slowly mov‐  
ing vehicle.  
WARNING  
▷ If another vehicle suddenly veers into the  
vehicle's own lane.  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
▷ When quickly approaching stationary vehi‐  
cles.  
There is a risk of injury or even death. Observe  
the traffic situation and intervene actively if the  
situation warrants it.  
Overview  
WARNING  
Buttons on the steering wheel  
An unsecured vehicle can start moving and roll‐  
ing away. There is a risk of accident. Before  
leaving the vehicle, secure it to prevent it from  
rolling away.  
Button Function  
Cruise Control on/off, see page 200.  
Observe the following to ensure that the vehi‐  
cle is secured against rolling away:  
Store/maintain speed, see page 201.  
▷ Apply the parking brake.  
Speed Limit Assist: to accept the  
suggested speed, see page 206.  
▷ Turn the front wheels towards the kerb on  
upward or downward gradients.  
To interrupt Cruise Control, see  
page 200.  
▷ Additionally secure the vehicle on upward  
or downward gradients, for example with a  
chock.  
To resume Cruise Control with last  
setting, see page 202.  
To increase the distance, see  
page 202.  
WARNING  
The desired speed may be set incorrectly by  
mistake or called up accidentally. There is a risk  
of accident. Adjust the desired speed to the  
traffic conditions. Observe the traffic situation  
and intervene actively if the situation warrants it.  
To reduce the distance, see  
page 202.  
Rocker switch:  
To set the speed, see page 201.  
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Radar sensor  
Switching Cruise Control on/off  
and interrupting  
Switching on  
Press the button on the steering wheel.  
The indicator lamps are illuminated in the instru‐  
ment cluster and the marker in the speedometer  
is positioned at the current speed.  
Cruise Control is active. The driven speed is  
maintained and stored as the desired speed.  
The radar sensor is located on the front in the  
bumper.  
Dynamic Stability Control DSC is switched on, if  
necessary.  
Keep the radar sensor clean and unobstructed.  
Camera  
Switching off  
When switching off with the vehicle at a stand‐  
still, depress the brake pedal at the same time.  
Press the button on the steering wheel.  
The displays turn off. The stored desired speed  
is deleted.  
Interrupting manually  
With the system active, press the button  
on the steering wheel.  
The camera is located near the rear-view mirror.  
Keep the windscreen clean and clear in this area.  
If interrupting the system when the vehicle is at a  
standstill, depress the brake pedal at the same  
time.  
Use  
The system can be used to optimum effect on  
well-constructed roads.  
Interrupting automatically  
The system is interrupted automatically in the  
following situations:  
The minimum speed that can be set is  
30 km/h/20 mph.  
The maximum speed which can be set is limited  
and depends on the vehicle and its equipment,  
for example.  
▷ If the driver brakes.  
▷ If the selector lever is moved out of posi‐  
tion D.  
Higher speeds can be set by switching to Cruise  
Control without distance control.  
▷ If Dynamic Traction Control DTC is activated  
or Dynamic Stability Control DSC deactiva‐  
ted.  
The system can also be activated when the vehi‐  
cle is at a standstill.  
▷ If Dynamic Stability Control DSC intervenes.  
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▷ If the vehicle is stationary and the seat belt is  
Changing the speed  
unfastened and the driver's door is opened.  
▷ If the system has not detected any objects for  
an extended period of time, for example on  
roads with little traffic and without defined  
boundaries.  
▷ If the detection zone of the radar is disrupted,  
for example due to contamination or heavy  
rainfall.  
▷ After an extended stationary period, if the ve‐  
hicle was decelerated to a standstill by the  
system.  
Press the rocker switch repeatedly up or down  
until the desired speed is set.  
If the system is active, the displayed speed is  
stored and the vehicle adjusts to the stored  
speed when the road is clear.  
Setting the speed  
Maintaining and saving the speed  
▷ Each time the rocker switch is pressed to the  
resistance point, the desired speed is in‐  
creased or decreased by 1 km/h, 1 mph.  
▷ Each time the rocker switch is pressed be‐  
yond the resistance point, the desired speed  
changes to the next multiple of 10 km/h on  
the km/h display or the next multiple of 5 mph  
on the mph display in the speedometer.  
To repeat an action, hold the rocker switch in the  
relevant position.  
While the system is interrupted, press the rocker  
switch up or down once.  
Adjusting the distance  
General  
The distance setting is saved for the current  
driver profile.  
When the system is switched on, the current  
speed is maintained and stored as the desired  
speed.  
The saved speed is displayed in the speedome‐  
ter and briefly in the instrument cluster, see  
page 202, where applicable.  
Safety note  
Dynamic Stability Control DSC is switched on, if  
necessary.  
WARNING  
The speed can also be stored by pressing the  
button.  
The system does not relieve you of your per‐  
sonal responsibility. System limitations may  
mean that braking is performed too late. There  
is a risk of accident or material damage. Pay  
close attention to the traffic conditions at all  
times. Adapt the distance to suit traffic and  
Press the button.  
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weather conditions and comply with the pre‐  
scribed safe distance by braking if necessary.  
Switching between Cruise  
Control with/without distance  
control  
Reduce the distance  
Safety note  
Press the button repeatedly until the  
desired distance is set.  
WARNING  
The selected distance, see page 202, is dis‐  
played in the instrument cluster.  
The system does not respond to traffic travel‐  
ling in front of you, but instead maintains the  
stored speed. There is a risk of accident or ma‐  
terial damage. Adjust the desired speed to the  
traffic conditions and brake if necessary.  
Increase the distance  
Press the button repeatedly until the  
desired distance is set.  
The selected distance, see page 202, is dis‐  
played in the instrument cluster.  
Switching to Cruise Control without  
distance control  
Distance control can be switched off and on  
when driving with Cruise Control activated.  
Resuming Cruise Control  
If Cruise Control is interrupted, it can be resumed  
by calling up the stored speed.  
Press and hold the button.  
Before calling up the stored speed, make sure  
that the difference between the current speed  
and the stored speed is not too great. Otherwise,  
there may be unintentional braking or accelera‐  
tion.  
Press and hold the button.  
To switch back to Cruise Control with distance  
control, press the button again.  
A Check Control message is then displayed.  
With the system interrupted, press the  
button.  
Displays in the instrument  
cluster  
Cruise Control is resumed with the stored values.  
In the following instances, the stored speed is  
deleted and therefore cannot be called up again:  
General  
Depending on the vehicle's equipment, the dis‐  
plays in the instrument cluster may vary.  
▷ When the system is switched off.  
▷ When drive-ready state is switched off.  
Status display  
The desired speed selected is permanently dis‐  
played in the instrument cluster.  
Vehicle distance  
The selected distance to the vehicle ahead is  
displayed.  
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When the distance to the detected vehicle in‐  
creases, the vehicle symbol in the distance dis‐  
play moves away.  
Symbol  
Description  
Distance 1.  
If necessary, drive off yourself, for example by  
pressing the accelerator pedal or rocker switch.  
Indicator and warning lamps  
Distance 2.  
Symbol  
Description  
Vehicle symbol flashes:  
The requirements for system  
operation are no longer being  
met.  
Distance 3.  
Corresponds to approximately  
half of the value of the speed‐  
ometer reading, expressed in  
metres. Selected when the sys‐  
tem is switched on for the first  
time.  
The system has been deactiva‐  
ted but will continue to brake  
until you actively take over by  
depressing the brake or acceler‐  
ator pedal.  
Vehicle symbol and distance bar  
flash red and an acoustic signal  
sounds:  
Distance 4.  
Brake and take evasive action if  
necessary.  
System interrupted.  
Alternative displays  
Depending on the vehicle's equipment, the dis‐  
plays in the instrument cluster may vary and are  
indicated as follows:  
No display of distance control  
because the accelerator pedal is  
being pressed.  
Symbol  
Description  
White vehicle symbol:  
No display of distance control  
because the accelerator pedal is  
being pressed.  
Detected vehicle  
Green symbol:  
Vehicle ahead detected.  
Symbol  
Description  
The vehicle symbol goes out if  
no vehicle in front is detected.  
Green symbol:  
Vehicle ahead detected.  
Vehicle symbol flashes green:  
The vehicle driving in front has  
set off.  
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Symbol  
System limits  
Description  
Grey symbol:  
Detection range  
System interrupted.  
Symbol flashes grey:  
The requirements for system  
operation are no longer being  
met.  
The system has been deactiva‐  
ted but will continue to brake  
until you actively take over by  
depressing the brake or acceler‐  
ator pedal.  
The system's detection capability and automatic  
braking capacity are limited.  
Vehicle symbol flashes red and  
an acoustic signal sounds:  
For example two-wheeled vehicles may not be  
detected.  
Brake and take evasive action if  
necessary.  
Deceleration  
The system does not decelerate in the following  
situations:  
Displays in the Head-Up Display  
Desired speed  
Some information from the system can also be  
shown in the Head-Up Display.  
▷ For pedestrians or similarly slow road users.  
▷ For red traffic lights.  
▷ For crossing traffic.  
▷ For oncoming vehicles.  
The symbol is displayed when the set  
desired speed has been reached.  
Vehicles cutting in  
Distance information  
The symbol is shown if the distance from  
the vehicle in front is too close.  
The distance information is active under the  
following circumstances:  
▷ Active Cruise Control switched off.  
▷ Display in the Head-Up Display selected, see  
page 158.  
If another vehicle suddenly cuts in front of you,  
the system might not be able to restore the se‐  
lected distance automatically. In some circum‐  
stances, it may also not be possible to restore  
the selected distance if you are driving signifi‐  
cantly faster than vehicles in front, for example  
when rapidly approaching a lorry. If a vehicle is  
▷ Distance too close.  
▷ Speed above approximately 70 km/h,  
40 mph.  
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clearly detected in front of you, the system  
▷ On steep upward gradients.  
prompts you to intervene by braking, and if nec‐  
essary by taking evasive action.  
▷ Before bumps or rises in the road.  
▷ When towing a heavy trailer.  
In such cases, depress the accelerator pedal.  
Cornering  
Weather  
The following restrictions may apply if the  
weather or lighting conditions are unfavourable:  
▷ Impaired detection of vehicles.  
▷ Brief interruptions when vehicles have already  
been detected.  
Examples of unfavourable weather or lighting  
conditions:  
▷ Wet roads.  
▷ Snowfall.  
▷ Slush.  
If the desired speed is too high for cornering, it  
will be reduced slightly in the bend. However, the  
system may not detect bends in advance, so  
moderate your speed when cornering.  
▷ Fog.  
The system has a limited detection range. Situa‐  
tions can arise on tight bends where a vehicle  
driving in front will not be detected or will be de‐  
tected very late.  
▷ Oncoming light.  
Pay attention when driving and respond to the  
prevailing traffic conditions. If necessary, inter‐  
vene actively, for example by braking, steering or  
taking evasive action.  
Engine power  
The desired speed is also maintained when driv‐  
ing downhill. The vehicle may drive slower than  
the desired speed on uphill gradients if there is  
not enough engine power.  
In ECO PRO drive mode, it is possible that the  
vehicle will intentionally drive faster or slower  
than the desired speed setting in some situa‐  
tions, for example on downward or upward gradi‐  
ents.  
When your vehicle is approaching a bend, the  
angle of the bend may cause the system to re‐  
spond temporarily to vehicles in the other lane. If  
the system responds by decelerating the vehicle,  
you may compensate for this by accelerating  
briefly. When the accelerator pedal is released  
again, the system will resume control of the vehi‐  
cle's speed.  
Malfunction  
Radar sensor  
The system cannot be activated if the radar sen‐  
sor is not correctly aligned, for example if it is  
damaged while parking.  
Driving off  
The vehicle cannot drive off automatically in  
some situations, for example:  
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A Check Control message is displayed if the sys‐  
tem has failed.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
Have the system checked by a Service Partner  
of the manufacturer or another qualified Service  
Partner or a specialist workshop.  
WARNING  
The system may have limited functionality if the  
radar sensor detection range is partially covered,  
for example by the number plate holder.  
The desired speed may be set incorrectly by  
mistake or called up accidentally. There is a risk  
of accident. Adjust the desired speed to the  
traffic conditions. Observe the traffic situation  
and intervene actively if the situation warrants it.  
Camera  
Detection of and response to stationary vehicles  
when approaching may be limited in the  
following situations:  
Overview  
▷ During the camera calibration process imme‐  
diately after vehicle delivery.  
Buttons on the steering wheel  
Button Function  
▷ Failure or soiling of the camera. A Check  
Control message is shown.  
To accept the suggested speed, see  
page 206.  
Speed Limit Assist  
Set the speed; see Cruise Control.  
Principle  
Switching on/off  
Via iDrive:  
When the systems in the vehicle, for example  
Speed Limit Info, detect a change in the speed  
limit, it is possible to adopt this new speed limit  
value for the following systems.  
1. "My Vehicle"  
2. "Vehicle settings"  
3. "Speed Assistant"  
4. "Speed limits"  
▷ Manual Speed Limiter.  
▷ Cruise Control.  
▷ Active Cruise Control with Stop&Go function  
Select the desired setting:  
The speed value is proposed as a new desired  
speed for adopting. The relevant system must  
be activated for the speed value to be adopted.  
▷ "Adjust manually": the detected speed  
limit can be adopted manually.  
▷ "Show anticipation": detected speed lim‐  
its are displayed in the instrument cluster  
without being adopted.  
Safety notes  
▷ "Off": Speed Limit Assist is switched off.  
WARNING  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Displays in the instrument  
cluster  
A message is displayed in the instrument cluster  
if the system and the Cruise Control are  
switched on.  
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System limits  
Symbol  
Function  
Speed Limit Assist is based on the Speed Limit  
Info system, meaning that the system limits of  
Speed Limit Info, see page 153, must also be  
considered.  
The indicator lamp is illumina‐  
ted green, together with the  
symbol for the speed control  
system:  
Depending on the country, displayed speed lim‐  
its may not be available for acceptance, or may  
only be available to a limited extent, for example  
with speed information from the navigation sys‐  
tem.  
Speed Limit Assist is active  
and detected speed limits can  
be adopted manually for the  
displayed system.  
Detected change in speed  
limit detected with immediate  
effect.  
Park Distance Control PDC  
Distance information shown  
alongside the symbol indi‐  
cates there might be a  
change in the speed limit up  
ahead.  
Principle  
PDC provides assistance when parking the vehi‐  
cle. Objects in front of or behind the vehicle as it  
slowly approaches are indicated by means of  
acoustic signals and a display on the Control Dis‐  
play.  
Indicator lamp is illuminated  
green: the detected speed  
limit can be adopted with the  
SET button.  
With Parking Assistant: obstacles at the side of  
the vehicle detected by Park Assist sensors can  
be reported by the lateral parking aid, see  
page 210, function if necessary.  
As soon as the speed limit  
has been adopted, a green  
tick is displayed.  
General  
The ultrasonic sensors for measuring distances  
are located in the bumpers, and if applicable on  
the side of the vehicle.  
Accepting the suggested speed  
As soon as the SET symbol lights up,  
press the button.  
Their range is approximately 2 m, 6 ft, depending  
on the obstacle and environment.  
Setting the speed adjustment  
It is possible to set whether the speed limit will  
be accepted exactly, or with a tolerance.  
An acoustic warning is given when the vehicle is  
approx. 70 cm, 27 in away from an object and a  
collision is imminent.  
Via iDrive:  
For objects behind the vehicle, the acoustic  
warning is given sooner, at a distance of approx.  
1.50 m, 5 ft.  
1. "My Vehicle"  
2. "Vehicle settings"  
3. "Speed Assistant"  
4. "Adjust speed limits"  
Confirm the desired setting.  
207  
 
Driver Assistance Systems  
CONTROLS  
Ultrasonic sensors  
Safety notes  
Ultrasonic sensors of the PDC,  
for example in the bumpers.  
WARNING  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
Operating requirements  
▷ Do not cover sensors, for example by stick‐  
ers, a bicycle rack or the like.  
▷ Keep sensors clean and free from ice.  
Switching on/off  
WARNING  
Automatic activation  
The system switches on automatically in the  
following situations:  
If the vehicle is travelling at high speed when  
Park Distance Control PDC is activated, the  
warning may be delayed due to the physical  
conditions. There is a risk of injury or material  
damage. Avoid approaching an object at speed.  
Avoid moving off at speed while Park Distance  
Control PDC is not yet active.  
▷ If selector lever position R is engaged while  
the engine is running.  
▷ When approaching detected obstacles, if the  
speed is below approximately 4 km/h,  
2.5 mph. The distance from the obstacle at  
which the system activates depends on the  
individual situation.  
Overview  
Automatic activation on detection of obstacles  
can be enabled and disabled.  
Button in the vehicle  
Via iDrive:  
1. "My Vehicle"  
2. "Vehicle settings"  
3. "Parking"  
4. "Automatic PDC activation": depending on  
the equipment.  
5. "Automatic PDC activation"  
Park Assistant button  
The setting is saved for the current driver profile.  
Depending on the equipment version, a respec‐  
tive camera view is switched on additionally.  
Automatic deactivation when  
moving forwards  
The system switches off once a certain distance  
or speed is exceeded.  
208  
 
Driver Assistance Systems  
CONTROLS  
Switch the system back on if necessary.  
Via iDrive:  
1. "My Vehicle"  
2. "iDrive settings"  
3. "Sound"  
Switching on/off manually  
Press the Park Assistant button.  
4. "Volume settings"  
5. "PDC"  
▷ On: the LED is illuminated.  
▷ Off: the LED is extinguished.  
6. Set the desired value.  
The image from the rear-view camera is shown  
when reverse gear is engaged and the Park As‐  
sistant button is pressed.  
The setting is saved for the current driver profile.  
Visual warning  
Depending on the equipment, the system cannot  
be switched off manually when reverse gear is  
engaged.  
Warning  
Acoustic signals  
General  
An intermittent sound indicates that the vehicle  
is approaching an object. For instance, if an ob‐  
ject is identified to the rear left of the vehicle, the  
acoustic signal is emitted from the rear left loud‐  
speaker.  
The vehicle's approach to an object is shown on  
the Control Display. Objects that are further away  
are already displayed before an acoustic signal is  
given.  
The shorter the distance to an object, the shorter  
the intervals become.  
The display appears as soon as PDC is activated.  
The recording range of the sensors is shown in  
green, yellow and red.  
A continuous tone sounds if the distance to a  
detected object is less than approximately  
20 cm, 8 in.  
Driving path lines are displayed for better estima‐  
tion of the space required.  
If there are objects in front of and behind the ve‐  
hicle at the same time, and they are at a distance  
of less than approximately 20 cm, 8 in, an alter‐  
nating continuous tone sounds.  
If the rear-view camera image is shown, it is pos‐  
sible to change over to PDC or, if required, to an‐  
other view with obstacle markings:  
"Rear view camera"  
Steptronic transmission: the intermittent tone  
and the continuous tone are switched off when  
selector lever position P is engaged.  
Crossing traffic warning, see page 222: depend‐  
ing on the equipment, the PDC display also  
warns of vehicles approaching from the sides at  
the front and rear.  
The intermittent sound switches off a short while  
after the vehicle comes to a standstill.  
Volume control  
It is possible to adjust the volume of the PDC  
acoustic signal relative to the volume of the en‐  
tertainment source playback.  
209  
 
Driver Assistance Systems  
CONTROLS  
It may be possible to set which areas of the vehi‐  
cle are protected by the system.  
With Parking Assistant and  
Steptronic transmission:  
emergency braking function,  
Active PDC  
Via iDrive:  
1. "My Vehicle"  
2. "Vehicle settings"  
Principle  
3. "Parking"  
The emergency brake function of PDC initiates  
emergency braking if there is an imminent risk of  
a collision.  
4. "Active PDC emergency intervention"  
5. Select the desired setting.  
The setting is saved for the current driver profile.  
General  
System limits  
The system cannot be used in the following sit‐  
uations, for example:  
Due to the system limits, a collision cannot be  
prevented under all circumstances.  
The function is available at speeds below walking  
speed when driving or rolling in reverse.  
▷ When driving with a trailer.  
Pressing the accelerator pedal interrupts the  
braking intervention.  
If necessary, deactivate the system via iDrive  
where applicable.  
After emergency braking to a stop, it is possible  
to continue a slow approach to the obstacle. To  
approach, lightly depress the accelerator and re‐  
lease it again.  
With Parking Assistant: lateral  
parking aid  
If the accelerator is depressed more firmly, the  
vehicle pulls away as normal. Manual braking is  
possible at any time.  
Principle  
The system warns about obstacles at the side of  
the vehicle.  
The system uses the ultrasonic sensors of PDC  
and Park Assist.  
General  
The system uses the ultrasonic sensors of PDC  
and Park Assist.  
Safety note  
Display  
WARNING  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. There is a risk of accident. Adapt  
your driving style to the traffic conditions. Addi‐  
tionally, look directly to check the traffic situa‐  
tion and the area around the vehicle and inter‐  
vene actively where appropriate.  
Settings  
The system can be activated or deactivated.  
Obstacle markings are displayed at the sides of  
the vehicle to protect the vehicle's flanks.  
210  
 
Driver Assistance Systems  
CONTROLS  
▷ Coloured markings: warning that obstacles  
Limits of the ultrasound  
measurement  
have been detected.  
▷ Grey markings, hatched surface: no obstacles  
have been detected.  
Certain conditions and objects may push ultra‐  
sound measurement to its physical limits, includ‐  
ing the following:  
▷ No markings, black surface: the area adjacent  
to the vehicle has not yet been detected.  
▷ Small children and animals.  
▷ Persons wearing certain types of clothing, for  
example a coat.  
Lateral parking aid limits  
▷ External interference with the ultrasound, for  
example by passing vehicles or loud ma‐  
chines.  
The system only shows stationary obstacles that  
were previously detected by the sensors when  
driving past.  
▷ Sensors which are dirty, iced up, damaged or  
incorrectly adjusted.  
The system does not detect whether an obstacle  
subsequently moves. The markings are shown in  
black after a certain time when the vehicle is sta‐  
tionary. The area next to the vehicle needs to be  
scanned again.  
▷ Certain weather conditions, for example high  
humidity, wet conditions, snowfall, extreme  
heat or strong wind.  
The lateral parking aid is not available when the  
trailer socket is in use.  
▷ Trailer drawbars and tow hitches of other ve‐  
hicles.  
▷ Thin or wedge-shaped objects.  
▷ Moving objects.  
System limits  
Safety note  
▷ Higher protruding objects, for example pro‐  
jecting walls.  
▷ Objects with corners, edges and smooth sur‐  
faces.  
WARNING  
The system may not respond at all, or may re‐  
spond too late, incorrectly or without justifica‐  
tion due to system limitations. There is a risk of  
accident or material damage. Observe the in‐  
formation on the system limits and intervene  
actively if necessary.  
▷ Objects with fine surfaces or structures, for  
example fences.  
▷ Objects with porous surfaces.  
▷ Small and low objects such as boxes.  
▷ Obstacles and people at the edge of the lane.  
▷ Soft obstacles or obstacles covered in foam.  
▷ Plants or shrubs.  
With a trailer or when the trailer  
socket is in use  
The rear PDC functions are switched off.  
▷ Low objects already indicated, for example  
kerbs, may enter the sensors' blind areas be‐  
fore or after a continuous tone is given.  
A white symbol is shown.  
▷ The system does not take into account loads  
projecting beyond the outline of the vehicle.  
Depending on the equipment, the detec‐  
tion range of the sensors is shown dark  
on the Control Display.  
False alarms  
Under the following conditions, the system may  
issue a warning even though there is no obstacle  
in the detection range:  
211  
 
Driver Assistance Systems  
CONTROLS  
▷ In heavy rain.  
Safety note  
▷ If the sensors are heavily soiled or covered  
with ice.  
WARNING  
▷ If the sensors are covered with snow.  
▷ On rough road surfaces.  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. There is a risk of accident. Adapt  
your driving style to the traffic conditions. Addi‐  
tionally, look directly to check the traffic situa‐  
tion and the area around the vehicle and inter‐  
vene actively where appropriate.  
▷ On uneven surfaces, for example speed  
bumps.  
▷ In large, rectangular buildings with smooth  
walls, for example underground car parks.  
▷ In washing bays and car washes.  
▷ In the presence of dense exhaust fumes.  
Overview  
▷ If the cover of the trailer tow hitch is incor‐  
rectly seated.  
Depending on the equipment:  
button in the vehicle  
▷ In the presence of other ultrasonic sources,  
for example sweeping machines, steam-jet  
cleaners or neon lights.  
To reduce false alarms, for example in automatic  
car washes, switch off, see page 208, automatic  
activation of PDC when obstacles are detected if  
necessary.  
Malfunction  
A Check Control message is shown.  
A white symbol is shown and the moni‐  
toring range of the sensors is shown in  
dark colour on the control display.  
Park Assistant button  
Camera  
PDC has failed. Have the system checked by a  
Service Partner of the manufacturer or another  
qualified Service Partner or a specialist work‐  
shop.  
Rear-view camera  
Principle  
The rear-view camera provides assistance when  
reverse parking or manoeuvring. It does this by  
showing an image of the area behind the vehicle  
on the Control Display.  
The lens of the camera is located in the handle  
strip of the tailgate.  
Dirt can impair the quality of the image. Clean the  
camera lens if required.  
Assistance functions, for example auxiliary lines,  
can also be shown on the display.  
212  
 
Driver Assistance Systems  
CONTROLS  
Via iDrive:  
Switching on/off  
▷
"Parking guidance lines".  
Automatic activation  
Driving path lines and turning circle lines are  
shown, see page 213.  
The system automatically switches on when se‐  
lector lever position R is engaged while the en‐  
gine is running.  
▷
"Obstacle marking".  
Depending on the equipment, the obstacles  
detected by Park Distance Control PDC are  
displayed, see page 214, by markings.  
Automatic deactivation when  
moving forwards  
The system switches off once a certain distance  
or speed is exceeded.  
▷
"Towbar zoom".  
A zoomed-in image of the trailer tow hitch is  
displayed, see page 214.  
Switch the system back on if necessary.  
A number of assistance functions can be active  
simultaneously.  
Depending on the equipment:  
switching on/off manually  
Parking guidance lines  
Press the Park Assistant button.  
Driving path lines  
▷ On: the LED is illuminated.  
▷ Off: the LED is extinguished.  
The parking assistance functions are shown on  
the Control Display.  
Switching the view via iDrive  
If the rear-view camera view is not displayed,  
change the view via iDrive:  
1. If necessary, tilt the Controller to the left.  
The driving path lines help you to estimate the  
space required when parking and manoeuvring  
on a level road surface.  
2.  
"Rear view camera"  
The image from the rear-view camera is shown.  
The driving path lines are dependent on the  
steering angle and continuously adapt to steer‐  
ing wheel movements.  
Operating requirements  
▷ The tailgate is completely closed.  
▷ Keep the detection range of the camera  
clear. Projecting loads, carrier systems or  
trailers can restrict the detection range of the  
camera.  
Display on the control display  
General  
The assistance functions can be activated man‐  
ually.  
213  
 
Driver Assistance Systems  
CONTROLS  
Turning circle lines  
The colour grading of the obstacle markings is  
the same as the Park Distance Control PDC  
markings.  
Zoom to trailer tow hitch  
To assist with connecting up a trailer, it is possi‐  
ble to zoom in on the area around the trailer tow  
hitch.  
The turning circle lines can only be shown in the  
camera image together with driving path lines.  
The turning circle lines show the trajectory of the  
smallest possible turning circle on a level road  
surface.  
Once the steering wheel has been turned be‐  
yond a certain angle, only one turning circle line  
is displayed.  
Two static circle segments show the distance  
between the trailer and the trailer tow hitch.  
Parking with the help of driving path and  
turning circle lines  
A docking line dependent on the steering angle  
assists you in lining up the trailer tow hitch with  
the trailer.  
1. Position the vehicle so that the red turning  
circle line is within the boundaries of the park‐  
ing space.  
When zooming in, remember that the view might  
no longer show certain obstacles.  
2. Turn the steering wheel so that the green  
driving path line covers the corresponding  
turning circle line.  
Adjusting brightness and  
contrast via iDrive  
With rear-view camera switched on:  
Obstacle marker  
1. Tilt the Controller to the left.  
2.  
▷
▷
"Brightness"  
"Contrast"  
3. Set the desired value.  
System limits  
Deactivated camera  
If the camera is deactivated, for example when  
the tailgate is opened, the camera image is dis‐  
played as grey hatching.  
Depending on the equipment, obstacles behind  
the vehicle are detected by the Park Distance  
Control PDC sensors.  
Obstacle markers can be shown in the image  
from the rear-view camera.  
214  
 
Driver Assistance Systems  
CONTROLS  
Detection of objects  
General  
Very low obstacles and higher, protruding ob‐  
jects such as ledges cannot be detected by the  
system.  
Operation  
Operation of Park Assistant is divided into three  
steps:  
Depending on the equipment, some assistance  
functions also take account of Park Distance  
Control PDC data.  
▷ Switching on and activating.  
▷ Parking space search.  
▷ Parking.  
Observe the notes in the chapter on Park Dis‐  
tance Control PDC.  
The status of the system and the actions re‐  
quired are shown on the Control Display.  
The objects shown in the Control Display may be  
closer than they appear. Do not estimate the dis‐  
tance to objects based on the display.  
Ultrasonic sensors measure parking spaces on  
both sides of the vehicle.  
Manual transmission  
With Parking Assistant:  
Park Assist  
The Park Assistant calculates the ideal parking  
line and takes over steering during the process  
of parking.  
Principle  
Steptronic transmission  
Park Assist calculates the ideal parking line and  
takes over the following functions during a park‐  
ing operation:  
▷ Steering.  
▷ Accelerating and braking.  
▷ Changing gear.  
The parking operation takes place automatically.  
The system assists with parking in the following  
situations:  
Safety notes  
▷ When parking sideways parallel to the road:  
parallel parking.  
WARNING  
▷ When reverse parking perpendicular to the  
road: perpendicular parking. The system lines  
up with the middle of the parking space when  
parking perpendicular to the road.  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
▷ When leaving parallel parking spaces, see  
page 219.  
215  
 
Driver Assistance Systems  
CONTROLS  
Ultrasonic sensors  
WARNING  
When the trailer tow hitch is in use, the driver  
assistance system could cause damage if its  
sensors are obstructed. There is a risk of acci‐  
dent or material damage. Do not use the driver  
assistance system during trailer operation or  
when using the trailer tow hitch, for example  
with a bicycle carrier.  
The system uses the four ultrasonic sensors lo‐  
cated at the sides, arrows, and the ultrasonic  
sensors of Park Distance Control PDC in the  
bumpers to measure parking spaces and distan‐  
ces to obstacles.  
NOTE  
Park Assistant may steer across or up onto  
kerbs. There is a risk of material damage. Ob‐  
serve the traffic situation and intervene actively  
if the situation warrants it.  
Operating requirements  
Ultrasonic sensors  
In addition, the safety notes apply for Park Dis‐  
tance Control PDC, see page 207.  
▷ Do not cover the sensors, for example with  
stickers.  
Overview  
▷ Keep the sensors clean and unobstructed.  
Button in the vehicle  
For measuring parking spaces  
▷ The vehicle must be driving forwards in a  
straight line at speeds up to approximately  
35 km/h, 22 mph.  
▷ Maximum distance from the row of parked  
vehicles: 1.5 m, 5 ft.  
Suitable parking space  
General:  
Park Assistant button  
▷ Gap behind an object that is at least 0.5 m,  
1.7 ft long.  
▷ Gap between two objects, each at least  
0.5 m, 1.7 ft long.  
Parking parallel to the road:  
▷ Minimum length of gap between two objects:  
own vehicle length plus approximately 0.8 m,  
2.6 ft.  
▷ Minimum depth: approximately 1.5 m, 5 ft.  
Perpendicular parking:  
216  
 
Driver Assistance Systems  
CONTROLS  
▷ Minimum length of gap: own vehicle width  
Display on the control display  
plus approximately 0.7 m, 2.3 ft.  
▷ Minimum depth: own vehicle length.  
System is activated/deactivated  
Drivers must estimate the depth of perpen‐  
dicular parking spaces themselves. Due to  
technical limits, the system is only able to  
gauge the depth of perpendicular parking  
spaces approximately.  
Sym‐  
bol  
Meaning  
Grey: system not available.  
White: system available but not acti‐  
vated.  
For parking  
System is activated.  
▷ Doors and tailgate are closed.  
▷ You must indicate accordingly when parking  
into parking spaces on the driver's side.  
Parking space search and system  
status  
Steptronic transmission:  
▷ Driver's seat belt is fastened.  
Switching on and activating  
Switching on with the button  
Press the Park Assistant button.  
The LED is illuminated.  
It is possible to display the current status of the  
parking space search on the Control Display.  
▷ Symbol P on the vehicle diagram: Park Assis‐  
tant is activated and the parking space search  
is active.  
Park Assistant is automatically activated.  
▷ Suitable parking spaces are shown on the  
Control Display on the edge of the roadway  
next to the vehicle symbol. When Park Assis‐  
tant is active, suitable parking spaces are  
highlighted in colour and an acoustic signal  
sounds. To switch the acoustic signal on/off,  
see page 218.  
Switching on with reverse gear  
1. Engage reverse gear.  
It is possible to display the current status of  
the parking space search on the Control Dis‐  
play.  
2. To activate:  
"Park Assist"  
▷ When perpendicular or parallel parking  
spaces are clearly detected, the system auto‐  
matically sets the appropriate parking  
method. A selection menu is displayed for  
parking spaces that are large enough for both  
parallel and perpendicular parking. In this  
case, select the desired parking method  
manually.  
217  
 
Driver Assistance Systems  
CONTROLS  
▷
Symbol on the vehicle image: parking  
The status of the parking space search and  
operation active. The system takes  
control of the steering.  
possible parking spaces are shown on the  
control display, see page 217.  
▷ The parking space search is active whenever  
the vehicle is driving forwards at low speed,  
even if the system is deactivated. If the sys‐  
tem is deactivated, the displays on the Con‐  
trol Display are shown grey.  
3. To confirm the suggested parking space for  
the parking operation: switch on the turn indi‐  
cator on the corresponding side.  
Confirm the prompt to start parking on the  
Control Display.  
The system takes control of the steering.  
4. Follow the instructions on the control display.  
Manual transmission:  
Acoustic signals  
Switching the acoustic signal for  
suitable parking spaces on/off  
Via iDrive:  
To achieve an optimum parking position, wait  
for the automatic steering process after  
changing gear at standstill.  
1. "My Vehicle"  
Steptronic transmission:  
2. "Vehicle settings"  
When parking is complete, selector lever po‐  
sition P is engaged.  
3. "Parking"  
4. "Park Assist"  
Completion of parking is indicated on the  
Control Display.  
5. "Sound if parking space detected"  
The setting is saved for the current driver profile.  
5. Adjust the parking position yourself if neces‐  
sary.  
Park Distance Control PDC acoustic  
signals  
In an automatic parking operation, Park Distance  
Control does not emit an intermittent sound.  
Cancelling manually  
You can cancel Park Assistant at any time:  
▷
Press the Park Assistant button.  
A continuous tone sounds if the distance to a  
detected object is less than approximately  
20 cm, 8 in.  
▷
"Park Assist": select the symbol on the  
Control Display.  
Cancelling automatically  
Parking with Park Assistant  
The system automatically cancels in the  
following situations:  
Driving into a parking space  
1. Switch on and activate Park Assistant.  
▷ If the driver grips the steering wheel or steers  
the vehicle.  
For this, engage reverse gear or press the  
Park Assist button and activate the system on  
the control display if necessary.  
▷ On snow-covered or slippery road surfaces, if  
necessary.  
Park Assist is activated.  
▷ If it encounters objects that are difficult to ne‐  
gotiate, for example kerbs.  
2. Drive forwards past the line of parked vehi‐  
cles at a speed up to approximately 35 km/h,  
22 mph and at a distance of maximum 1.5 m,  
5 ft.  
▷ If objects appear suddenly.  
▷ If Park Distance Control PDC shows gaps  
that are too small.  
218  
 
Driver Assistance Systems  
CONTROLS  
▷ When a maximum number of parking at‐  
General  
tempts or the parking time is exceeded.  
Manual transmission  
▷ If other functions are selected on the Control  
Display.  
Park Assist calculates the optimum line to take  
when driving out of the space and takes over the  
steering during the manoeuvre until the driver  
can drive out of the space without any further  
steering movements.  
Manual transmission:  
▷ When selecting gear, which does not corre‐  
spond to the information on the Control Dis‐  
play.  
▷ At speeds over approximately 10 km/h,  
6 mph.  
Steptronic transmission  
The Park Assistant calculates the optimum line  
to take when driving out of the space and takes  
over the following functions during the manoeu‐  
vre:  
▷ If the turn indicator opposite to the desired  
parking side is switched on.  
Steptronic transmission:  
▷ With the tailgate open.  
▷ When doors are open.  
▷ If the parking brake is applied.  
▷ When accelerating.  
▷ Steering.  
▷ Accelerating and braking.  
▷ Changing gear.  
The vehicle manoeuvres automatically until it is  
in a position where the driver can drive out of the  
space without any further steering movements.  
▷ If the brake pedal remains pressed for a rela‐  
tively long period when the vehicle is station‐  
ary.  
Operating requirements  
▷ When the driver's seat belt is unfastened.  
A Check Control message is shown.  
▷ The vehicle has been parked manually and  
objects are detected in front of and behind  
the vehicle. The distance to a detected kerb  
is at least 15 cm, approx. 6 in.  
Resuming  
You can continue a cancelled parking operation if  
applicable.  
▷ The vehicle has been parked using the Park  
Assistant and an object is detected in front of  
the vehicle.  
To do this, reactivate Park Assistant, see  
page 217, and follow the instructions on the  
Control Display.  
▷ The parking space is at least 0.8 m, 2.6 ft lon‐  
ger than the vehicle.  
▷ The vehicle has been reverse-bay parked.  
Switching off  
The system can be switched off manually:  
Leaving a parking space  
Press the Park Assistant button.  
1. Switch on drive-ready state.  
2. Manual gearbox: press the Park Assistant  
button while the vehicle is stationary to  
switch on the Park Assistant.  
Leaving a parking space with  
Park Assist  
Steptronic transmission:  
When the vehicle is stationary, press the Park  
Assistant button or engage reverse gear to  
switch on the Park Assistant.  
Principle  
The system makes it easier to leave parallel park‐  
ing spaces.  
219  
 
Driver Assistance Systems  
CONTROLS  
3. Tilt the Controller to the right as applicable  
and activate the Park Assistant on the Control  
▷ In angled parking spaces.  
Display:  
"Park Assist"  
Functional limitations  
4. To confirm the suggested parking space for  
the parking operation: switch on the turn indi‐  
cator on the corresponding side.  
The system may have limited functionality in the  
following situations, for example:  
▷ On uneven road surfaces, for example gravel  
roads.  
Confirm the prompt to start parking on the  
Control Display.  
▷ On slippery surfaces.  
5. Manual transmission:  
▷ On steep upward or downward gradients.  
Follow the instructions on the Control Dis‐  
play. The system takes over the steering  
when manoeuvring in the parking space. A  
message is displayed at the end of the ma‐  
noeuvre.  
▷ If leaves have collected or snow has drifted or  
been piled up in the parking space.  
▷ If the spare wheel has been fitted.  
▷ If there is a change in a measured parking  
space.  
Steptronic transmission:  
▷ If there are ditches or sudden drops, for ex‐  
ample a quayside.  
The system takes over the manoeuvre. A  
message is displayed at the end of the ma‐  
noeuvre.  
Limits of the ultrasound  
measurement  
Certain conditions and objects may push ultra‐  
sound measurement to its physical limits, includ‐  
ing the following:  
6. Make sure that it is safe to leave the parking  
space in the current traffic conditions and  
drive off as usual.  
The Park Assistant is switched off automati‐  
cally.  
▷ Small children and animals.  
▷ Persons wearing certain types of clothing, for  
example a coat.  
System limits  
Safety note  
▷ External interference with the ultrasound, for  
example by passing vehicles or loud ma‐  
chines.  
WARNING  
▷ Sensors which are dirty, iced up, damaged or  
incorrectly adjusted.  
The system may not respond at all, or may re‐  
spond too late, incorrectly or without justifica‐  
tion due to system limitations. There is a risk of  
accident or material damage. Observe the in‐  
formation on the system limits and intervene  
actively if necessary.  
▷ Certain weather conditions, for example high  
humidity, wet conditions, snowfall, extreme  
heat or strong wind.  
▷ Trailer drawbars and tow hitches of other ve‐  
hicles.  
▷ Thin or wedge-shaped objects.  
▷ Moving objects.  
No parking assistance  
Park Assistant does not provide assistance in the  
following situations:  
▷ Higher protruding objects, for example pro‐  
jecting walls.  
▷ On sharp bends.  
▷ Objects with corners, edges and smooth sur‐  
faces.  
▷ When towing a trailer.  
220  
 
Driver Assistance Systems  
CONTROLS  
▷ Objects with fine surfaces or structures, for  
trol PDC, see page 207, and Park Assist, see  
example fences.  
page 215.  
▷ Objects with porous surfaces.  
▷ Small and low objects such as boxes.  
▷ Obstacles and people at the edge of the lane.  
▷ Soft obstacles or obstacles covered in foam.  
▷ Plants or shrubs.  
Safety notes  
WARNING  
The system does not relieve you of your per‐  
sonal responsibility to assess the traffic situa‐  
tion correctly. Due to system limitations, it can‐  
not respond independently and appropriately in  
all traffic conditions. There is a risk of accident.  
Adapt your driving style to the traffic conditions.  
Observe the traffic situation and intervene ac‐  
tively if the situation warrants it.  
▷ Low objects already indicated, for example  
kerbs, may enter the sensors' blind areas be‐  
fore or after a continuous tone is given.  
▷ The system does not take into account loads  
projecting beyond the outline of the vehicle.  
▷ In some cases, parking spaces may be detec‐  
ted that are not suitable or suitable parking  
spaces may not be detected.  
WARNING  
Malfunction  
A Check Control message is shown.  
When the trailer tow hitch is in use, the driver  
assistance system could cause damage if its  
sensors are obstructed. There is a risk of acci‐  
dent or material damage. Do not use the driver  
assistance system during trailer operation or  
when using the trailer tow hitch, for example  
with a bicycle carrier.  
Park Assistant has failed. Have the system  
checked by a Service Partner of the manufac‐  
turer or another qualified Service Partner or a  
specialist workshop.  
The Safety Information for the Park Distance  
Control PDC, see page 207, and Park Assist, see  
page 215, also applies.  
Reversing assistant  
Principle  
The system supports the driver when reversing,  
for example when driving out of tight or blind  
parking spaces or narrow roads.  
Operating requirements  
▷ To save the stretch of road, drive forwards  
without interruption.  
The vehicle saves the driving movements for the  
last stretch of road. The vehicle can reverse  
along this saved stretch with automated steering.  
▷ A maximum of 50 metres/ 55 yards can be  
saved.  
▷ To save the stretch of road, do not drive  
faster than 36 km/h/ 22 mph.  
The system takes over the steering when revers‐  
ing along the saved stretch.  
▷ The stretch of road that is to be reversed  
along must be at least 30 cm/12 in wider than  
the vehicle.  
The driver is responsible for operating the accel‐  
erator pedal and the brake.  
General  
The reversing assistant uses the control func‐  
tions and the sensors of the Park Distance Con‐  
221  
 
Driver Assistance Systems  
CONTROLS  
Reversing with automated  
steering  
1. When the vehicle is stationary and the drive-  
ready state is switched on, engage reverse  
gear or press the Park Assistant button.  
System limits  
▷ When you reach normal road traffic or if you  
suddenly encounter an obstacle, stop imme‐  
diately and take over control of the vehicle.  
▷ The maximum speed when reversing is limi‐  
ted to approximately 9 km/h/ 6 mph.  
2. Tilt the Controller to the right.  
3. "Reversing Assistant"  
Manual transmission: if the maximum speed  
is exceeded, a warning is issued and the  
function may be cancelled.  
The system takes over the steering.  
4. Follow the instructions on the Control Display  
as applicable.  
▷ The system limits for Park Assist and the  
Park Distance Control PDC also apply.  
5. Take your hands off the steering wheel and  
carefully drive off using the accelerator pedal  
and brake.  
Crossing traffic warning  
When reversing, pay attention to the vehicle  
surroundings and observe the Park Distance  
Control PDC information. Brake if necessary.  
Principle  
At blind exits or when leaving bay parking  
spaces, the system detects other road users ap‐  
proaching from the side earlier than is possible  
from the driver's seat.  
6. Stop when you reach normal road traffic at  
the latest and take over control of the vehicle,  
for example by engaging a forward gear.  
At the end of the saved stretch of road, a sig‐  
nal sounds and a message appears prompt‐  
ing you to take over control of the vehicle.  
General  
Cancelling the system  
The system automatically cancels in situations  
such as the following:  
▷ If the driver grips the steering wheel or steers  
the vehicle.  
▷ When a forward gear is engaged.  
▷ When drive control systems or Driver Assis‐  
tance Systems are activated or intervening.  
Two radar sensors in the rear bumper monitor  
the area behind the vehicle.  
▷ If the vehicle is stationary for several minutes.  
The system indicates when other road users are  
approaching.  
▷ If the vehicle leaves the stored lane during re‐  
versing; for example, at the maximum steer‐  
ing angle.  
▷ When the display on the Control Display is  
hidden by messages, for example due to in‐  
coming calls.  
222  
 
Driver Assistance Systems  
CONTROLS  
Safety note  
Switching on/off  
Activating/deactivating the system  
WARNING  
The system does not relieve you of your per‐  
sonal responsibility to assess the visibility con‐  
ditions and traffic situation correctly. There is a  
risk of accident. Adapt your driving style to the  
traffic conditions. Observe the traffic situation  
and intervene actively if the situation warrants it.  
1.  
2. Tilt the Controller to the left.  
3. "Settings"  
Press the Park Assistant button.  
4. "Cross-traffic alert"  
5. "Activate function"  
Automatic activation  
Overview  
If the system was activated on the control dis‐  
play, it is switched on automatically as soon as  
Park Distance Control PDC is active and a gear is  
engaged.  
Button in the vehicle  
The system is switched on at the rear when re‐  
verse gear is engaged.  
Switching off automatically  
The system switches off automatically in the  
following situations:  
▷ If walking speed is exceeded.  
▷ When Park Assistant is actively parking the  
vehicle.  
Park Assistant button  
Radar sensors  
Warning  
General  
The Control Display shows the corresponding  
image, an acoustic signal sounds, if necessary,  
and the light in the exterior mirror flashes.  
The radar sensors are located in the rear  
bumper.  
Keep the bumpers clean and unobstructed in the  
area of the radar sensors.  
223  
 
Driver Assistance Systems  
CONTROLS  
▷ If the bumper is dirty, iced up or covered,  
Light in the exterior mirror  
for example by stickers.  
▷ If the sensors' field of view is obscured, for  
example due to garage walls, hedges or  
mounds of snow.  
▷ When a projecting load is being transported.  
▷ If crossing objects are moving very slowly.  
▷ If there are other objects in the field of view of  
the sensors that conceal the crossing traffic.  
If the trailer socket is being used, for example  
when operating with a trailer or a bicycle carrier,  
crossing traffic warning is not available for the  
area behind the vehicle.  
The light in the exterior mirror flashes if other ve‐  
hicles are detected by the rear sensors when the  
vehicle is reversing.  
Display in the Park Distance Control  
PDC view  
In the Park Distance Control PDC view, the rele‐  
vant boundary area flashes red if the sensors de‐  
tect vehicles.  
Acoustic warning  
In addition to the visual display, a warning signal  
sounds when your own vehicle is moving in the  
corresponding direction.  
System limits  
The system may have limited functionality in the  
following situations:  
▷ If the approaching vehicle is travelling very  
fast.  
▷ In thick fog, wet conditions or snow.  
▷ On sharp bends.  
224  
 

Related Topics

CONTROLS
Opening and closing Seats, mirrors and steering wheel Carrying children safely Driving Displays Lights Safety Driving Stability Control Systems Driving comfort Air conditioning Interior equipment Storage compartments Luggage compartment

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