Active Parking Assist is an electronic parking assistance system, which uses ultrasound with the assistance of the reversing camera and 360° Camera. When you are driving forwards up to approximately 35 km/h, the system automatically measures parking spaces on both sides of the vehicle.
Country-dependent: parking in parking spaces parallel to the road
Parking in parking spaces perpendicular to the road (optionally either forwards or reverse)
Exiting parking spaces if you have parked using Active Parking Assist
If all requirements are met, the 
display appears in the multifunction display. The system then independently locates and measures parallel and perpendicular parking spaces on both sides of the vehicle.
When Active Parking Assist has detected parking spaces, the 
display appears in the multifunction display. The arrows show on which side of the road detected parking spaces are located. They are then shown in the media display.
The parking space can be selected as desired. Depending on the location of the parking space, the parking direction (rearwards or forwards) can also be selected as desired.
Active Parking Assist provides assistance when changing gear, accelerating, braking and steering the vehicle.
Active Parking Assist is only an aid. It is not a substitute for your attention to the surroundings. The responsibility for safe manoeuvring and parking remains with you. Make sure that no persons, animals or objects etc. are in the manoeuvring range.
You deactivate Parking Assist PARKTRONIC.
You deactivate Active Parking Assist.
You begin steering.
You apply the parking brake.
You engage transmission position
. ESP® intervenes.
You open the doors or the tailgate while driving.
Objects located above or below the detection range of Active Parking Assist are not detected when the parking space is being measured. These are also not taken into account when the parking manoeuvre is calculated, e.g. overhanging loads, overhangs or loading ramps of lorries, or the boundaries of parking spaces. In some circumstances, Active Parking Assist may therefore guide you into the parking space prematurely.
Active Parking Assist may steer too early.
The vehicle may not stop in front of these objects.
This could cause a collision.
Snowfall or heavy rain may lead to a parking space being measured inaccurately. Parking spaces that are partially occupied by trailer drawbars might not be identified as such or be measured incorrectly. Only use Active Parking Assist on level, high-grip ground.
The weather conditions are extreme, e.g. ice, packed snow or heavy rain.
If you are transporting a load that protrudes beyond the vehicle.
If the parking space is on a steep downhill or uphill gradient.
If you have installed snow chains.
Parking spaces where parking is prohibited.
Parking spaces on unsuitable surfaces.
If two parking spaces are located immediately next to each other.
If the parking space is immediately next to a low obstacle such as a kerb.
If the parking space is on a kerb.
If the parking space is bordered by an obstacle, e.g. a tree, a post or a trailer.
You can watch an animation on this topic at the following link:
