Fig. 126 In the centre console: button for the Auto Hold function.
Description of the Auto Hold function
The Auto Hold function can hold the vehicle stationary. It is not necessary to hold the vehicle with
the foot brake in this case.
The Auto Hold function is active when the indicator lamp in the button ⇒ Fig. 126
(arrow) lights up yellow and the indicator lamp in the instrument cluster display lights up green.
The Auto Hold function stops holding the vehicle as soon as it moves off.
If any of the conditions for the Auto Hold function change while the vehicle is stationary, the Auto
Hold function will switch off automatically. The green indicator lamp in the instrument cluster
display then goes out together with the yellow indicator lamp in the button.
Switching on the Auto Hold function
The Auto Hold function can be switched on when the driver door is closed and the engine has been
started.
Press the button ⇒ . The indicator lamp in the button ⇒ Fig. 126
(arrow) lights up yellow. The Auto Hold function is operational, but the vehicle is not necessarily held
stationary ⇒ .
DSG® dual clutch gearbox: if the selector lever is moved to position N, the Auto Hold function will
not be switched on or will be switched off. As a result, the vehicle will not be held securely in a
stationary position ⇒ .
Holding the vehicle stationary with the Auto Hold function
Make sure that the Auto Hold function is operational. The indicator lamp in the
button lights up yellow.
Bring the vehicle to a standstill using the brake ⇒ Parking .
Manual gearbox: disengage the clutch and either keep the clutch fully depressed or shift to neutral.
Release the brake. The indicator lamp will light up greenon the instrument cluster display. The
vehicle is being held stationary by the Auto Hold function ⇒ .
Switching off the Auto Hold function
Press the button ⇒ . The indicator lamp in the button ⇒ Fig. 126
(arrow) goes out.
The electronic parking brake switches on automatically to hold the vehicle securely. However, the
electronic parking brake will not switch on if the brake pedal is depressed when the Auto Hold
function is switched off ⇒ .
Temporarily switching off the Auto Hold function with the button
It can sometimes be necessary to switch off the Auto Hold function temporarily to enable the vehicle
to roll more easily, for example when manoeuvring.
Press the brake pedal when the engine is on.
Press the button. The Auto Hold function is deactivated.
The Auto Hold function will be reactivated as soon as the brake pedal is depressed again when the
vehicle has come to a standstill.
System limits
If the clutch slips during switching off of the ignition or opening of the driver door, the vehicle may
not be secured against rolling away by either the Auto Hold function or the electronic parking brake
⇒ . After switching off the ignition or opening the driver door, make sure that the indicator
lamp in the instrument cluster displaylights upred. The electronic parking brake is switched on.
WARNING
The intelligent Auto Hold function cannot overcome the laws of physics, and operates only within
the limits of the system. Do not let the extra convenience afforded by the Auto Hold function tempt
you into taking any safety risks when driving.
Make sure that the indicator lamp lights up green or red on the instrument cluster display if the
vehicle is to be held securely. The vehicle is being held by the Auto Hold function if the green
indicator lamp is lit and by the electronic parking brake if the red warning lamp is lit.
Never leave the vehicle if the engine is running and the Auto Hold function is switched on.
In some cases, the Auto Hold function cannot sufficiently hold the vehicle on uphill gradients or
brake it sufficiently on downhill gradients, e.g. if the ground is slippery or icy.
NOTICE
Switch off the Auto Hold function before driving into a car wash. Damage may otherwise be caused
by automatic activation of the electronic parking brake.
Safety notes on the parking systems
The parking systems include the following:
Park Distance Control ⇒ Park Distance Control .
Rear view camera system (Rear View) ⇒ Rear view camera system (Rear View) .
Park Assist ⇒ Park Assist .
The available systems vary according to the vehicle equipment level.
Limits of the parking systems
The sensors or cameras may not always be able to detect objects such as thin rails, fences, posts,
trees, very low or high obstacles and open or opening boot lids.
In some cases, dirt and ice on the sensors or cameras could be registered as an obstacle.
Limits of the rear view camera system
The rear view camera system shows only two-dimensional images on the screen. The lack of depth
of field means that potholes and protruding objects on the ground may only be detected with
difficulty, or may not be detected at all.
The system displays the orientation lines irrespective of the area surrounding the vehicle. There is no
automatic obstacle detection. Drivers must judge for themselves whether the vehicle will fit into the
parking space.
WARNING
The intelligent technology used in the parking systems cannot overcome the laws of physics, and
functions only within the limits of the system. Never let the extra convenience afforded by the
parking systems tempt you into taking any risks when driving. The parking systems cannot replace
the full concentration of the driver.
Always adapt your speed and driving style to suit visibility, weather, road and traffic conditions.
Unintentional vehicle movements can cause serious injury.
Keep looking in the direction in which you are parking and at the relevant area surrounding the
vehicle.
Do not allow the displays in the instrument cluster and the images shown in the Infotainment
system to distract you from the traffic.
Always monitor the area around the vehicle as the parking systems will not always detect infants,
animals and objects.
The parking systems have blind spots in which obstacles and people are not registered.
External sources of sound and certain surfaces on objects and clothing may influence the signals of
the sensors. In certain circumstances, the systems will be unable to detect or properly detect people
and objects.
Certain objects, for example narrow posts or railings, may be difficult or impossible to see on the
screen because of its resolution or poor light conditions.
Fig. 130 On the instrument cluster display: display of parking modes.
First read and observe the introductoryinformation and safety warnings⇒Introduction
Park Assist has three parking modes ⇒ Fig. 130 (illustration).
Reverse parallel parking.Reverse perpendicular parking.Forward perpendicular parking.
Drive slowly past a row of parked vehicles, paying attention to the traffic.
Press the button. Park Assist automatically searches for a suitable parking space on the front
passenger side.
Stop when Park Assist displays a recommended parking mode on the instrument cluster display.
Drive into the parking space when a corresponding prompt ⇒ Fig. 131⑤ is shown on the
instrument cluster display ⇒ Driving into a parking space .
If you want Park Assist to search for a parking space on the opposite side of the road, operate the
turn signal for the corresponding side.
Changing parking mode
If Park Assist has found other alternative parking modes, these will be displayed in a miniature view.
They can be selected in turn by repeatedly pressing the button. Park Assist will switch itself off
after selection of all found parking modes. The originally recommended parking mode is offered
when the button is pressed again.
If you wish to park in a perpendicular parking space in forward direction, select Forward
perpendicular parking ⇒ Fig. 130 . Otherwise the vehicle will reverse into the perpendicular
parking space.
Park Assist can be activated retrospectively. If the vehicle has previously driven past a suitable
parking space, it will be displayed.
Driving into a parking space
Fig. 131 On the instrument cluster display: parking perpendicular to the road.
First read and observe the introductoryinformation and safety warnings⇒Introduction
Key to ⇒ Fig. 131 :
Choose parking space.Position for parking.Align the vehicle in the parking space.1Prompt to
drive forward.2Your vehicle.3Parked vehicle or obstacle.4Detected parking space.5Prompt to select
reverse gear.6Prompt to press the brake pedal.7Progress bar. Symbolically shows the relative
distance still to be driven.
The prerequisites for parking space selection must be met ⇒ Prerequisites and the vehicle must be
stationary.
Let go of the steering wheel ⇒ .
Select reverse gear when a reverse arrow appears on the instrument cluster display.
Accelerate carefully.
Brake when an acoustic signal sounds to indicate that you should change direction, an arrow
⇒ Fig. 131① lights up, the display lights up or a message is shown.
Drive forwards until an acoustic signal sounds or until the prompt to reverse is shown on the
instrument cluster display.
Repeat reversing and driving forwards until a corresponding message is displayed on the instrument
cluster. A signal tone may also sound.
Driving out of a parking space
Fig. 132 On the instrument cluster display: driving out of a parallel parking space.
First read and observe the introductoryinformation and safety warnings⇒Introduction
Key to ⇒ Fig. 132 :
Parked vehicle.
Own vehicle with reverse gear engaged.
Progress bar. Symbolically shows the relative distance still to be driven.
Direction indicator for next manoeuvre for driving out of the parking space.
Park Assist can drive out of parallel parking spaces if the prerequisites for this are met
⇒ Prerequisites .
Press the button.
Use the turn signal lever to select the direction (left or right) in which you would like to drive out of
the parking space.
Select reverse gear.
Release the steering wheel when the following message is shown: Steer. intervention active.
Monitor vehicle area.
Accelerate carefully.
Brake when an acoustic signal sounds, the display lights up or until the prompt to drive forward
appears on the instrument cluster display.
Depress the brake pedal until Park Assist has finished steering or until the display in the
instrument cluster display will go out.
Repeat reversing and driving forwards until a corresponding message is displayed on the instrument
cluster. A signal tone may also sound.
Take over steering with the steering angle set by Park Assist.
Drive the vehicle out of the parking space when permitted by the traffic situation.
Automatic braking intervention to minimise damage
In some countries, Park Assist can assist the driver with an automatic braking intervention in certain
situations ⇒ .
Depending on the vehicle equipment and certain conditions, e.g. weather, load or inclination of the
vehicle, Park Assist can automatically brake the vehicle before an obstacle. Following this
intervention, the driver must depress the brake pedal.
The parking manoeuvre is ended if an automatic braking intervention occurs.
Rear Traffic Alert
Fig. 133 Illustration of Rear Traffic Alert: monitored area around the vehicle leaving the parking
space.
Fig. 134 Display in the Infotainment system: Rear Traffic Alert.
Rear Traffic Alert is part of the Blind Spot Monitor ⇒ Driving with the Blind Spot Monitor .
Switching on and off
By means of the Assist systems menu in the instrument cluster ⇒ Vehicle settings menu .
OR: with some equipment levels, by means of the button for the driver assist systems ⇒ Button for
driver assist systems .
OR: with some equipment levels, in the Driver assistance menu in the Infotainment system
⇒ Infotainment system controls and displays .
Function
Rear Traffic Alert monitors the traffic crossing behind the vehicle when reversing out of a parking
space or manoeuvring. Rear Traffic Alert functions using radar sensors in the rear bumper.
Key to ⇒ Fig. 134 :
Critical situation. Do not drive on!Possible critical situation.
Detection of a critical situation can also take place acoustically:
A warning signal will sound and a text message will be displayed in the instrument cluster for
vehicles without Park Distance Control.
In vehicles with Park Distance Control, an acoustic signal will sound with the continuous tone of Park
Distance Control. If the Park Distance Control is deactivated, no warning can be given to the driver
and the Rear Traffic Alert system will also be switched off temporarily.
If there is a system fault in the scanned area, the indicator lamp will light up yellow on the
instrument cluster display.
Automatic braking intervention to minimise damage
If Rear Traffic Alert detects an approaching road user and the driver has not pressed the brake, the
system can brake automatically.
Automatic braking intervention is activated when reversing at speeds of between 1–12 km/h (1–
7 mph). The vehicle is held stationary for up to two seconds after vehicle standstill has been
detected.
After automatic braking intervention is activated to prevent damage to the vehicle, the system
requires approximately ten seconds before it can activate another automatic braking intervention.
Automatic braking intervention can be interrupted by pressing the accelerator or brake pedal
sharply and taking control of the vehicle.
Automatic deactivation
Rear Traffic Alert is deactivated automatically and cannot be switched on if the factory-fitted towing
bracket is electrically connected to a trailer or similar ⇒ Notes on towing a trailer . Once a trailer is
electrically connected to the vehicle and the driver pulls away, a text message appears in the
instrument cluster display to inform the driver that Rear Traffic Alert has been deactivated. Rear
Traffic Alert will be automatically activated again when the trailer has been unhitched from the
vehicle. This applies if the functions were previously activated. Rear Traffic Alert must be switched
off manually for trailer towing if a non-factory-fitted towing bracket is used.
WARNING
The intelligent Rear Traffic Alert technology cannot overcome the laws of physics, and functions only
within the limits of the system. Do not let the assistance function of Rear Traffic Alert tempt you to
take any safety risks while driving. The system is not a substitute for the full concentration of the
driver.