Active Parking Assist is an electronic parking assistance system which uses ultrasound and is automatically activated during forward travel. The system is operational at speeds of up to approximately 35 km/h. When all the conditions are fulfilled, the 
symbol appears in the multifunction display of the Instrument Display and the system automatically searches for and measures parking spaces on both sides of the vehicle parallel and perpendicular to the direction of travel. If Active Parking Assist is activated, detected parking spaces are shown in the display of the multimedia system. The 
appears on the multifunction display of the Instrument Display. The arrows show on which side of the road free parking spaces are located.
The parking space and, if necessary, the parking direction can be selected as desired. Active Parking Assist calculates a suitable vehicle path, activates the turn signal indicator and assists you in parking and exiting the parking space.
Active Parking Assist supports by 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 shift to
. ESP® intervenes.
You open the tailgate.
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.
Active Parking Assist may also display parking spaces that are not suitable for parking, e.g. parking spaces in which parking is not permitted or parking spaces on unsuitable surfaces.
Active Parking Assist does not provide assistance for parking spaces perpendicular to the direction of travel, for instance when two parking spaces are directly next to each other or the parking space is directly next to a low obstacle such as a kerb.
Active Parking Assist does not provide assistance for parking spaces parallel or perpendicular to the direction of travel, for instance when the parking space is on a kerb or the parking space is bordered by an obstacle, e.g. a tree, a post or a trailer.