Parking Assist PARKTRONIC is an electronic parking assistance system which monitors the area surrounding your vehicle and shows you the distance between the vehicle and a detected obstacle visually and audibly.
Parking Assist PARKTRONIC 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 there are no persons, animals or objects in the manoeuvring area while manoeuvring and parking in/exiting parking spaces.
The passive side impact protection also warns you of obstacles to the side. During the parking procedure or manoeuvring, objects are detected as the vehicle drives past. If you steer in the direction of a detected obstacle and there is a risk of a lateral collision, a warning is issued. In order for an object on the side to be detected, the sensors in the front and rear bumper must first detect the object while you are driving past it.
In order for front or rear obstacles to the side to be displayed, the vehicle must first travel a distance of at least half a vehicle length. Once the vehicle has travelled one vehicle length, obstacles on all sides can be shown.
As soon as Parking Assist PARKTRONIC is operational, the respective areas of the display are shown in blue.
Operational, front and rear 
Operational, all around 
Obstacles detected at the front left and on the right hand side
Blue: > 1 m (no obstacles detected)
Yellow: approximately 1 m - 0.7 m
Orange: approximately 0.7 m - 0.4 m
Red: < 0.4 m
Vehicles with 360° Camera: the boundary line shifts dynamically depending on the position and distance of the obstacles detected.
Depending on the distance to the obstacle detected, an intermittent warning tone also sounds. You can set the timing of the warnings in the multimedia system More.
Front and sides: < 0.4 m
Rear: < 1 m
Front: < 1 m
Sides: < 0.7 m
Rear: < 1 m
A continuous warning tone sounds from a distance of approximately 0.2 m, regardless of the selected setting.
appears: vehicles without Active Parking Assist: at speeds below 12 km/h
vehicles with Active Parking Assist: at speeds below 18 km/h
Optionally, obstacles detected by Parking Assist PARKTRONIC from a distance of approximately 1.0 m in front and 0.7 m on the side can also be displayed in the head-up display.
Obstacles below the detection range, e.g. persons, animals or objects.
Obstacles above the detection range, e.g. overhanging loads, overhangs or loading ramps of lorries.
Pedestrians or animals approaching the vehicle from the side.
Objects placed next to the vehicle.
You park the vehicle and switch off the ignition.
You open the doors.
After an ignition cycle, obstacles must be detected again by driving past them before a warning can be issued.
Observe the information on vehicle sensors and cameras; the system otherwise cannot function properly More.
Vehicles with trailer hitch: Parking Assist PARKTRONIC is deactivated for the rear zone when you establish an electrical connection between your vehicle and a trailer.
If the Parking Assist PARKTRONIC display lights up red for approximately 3 seconds then goes out, and the 
symbol appears in the instrument cluster, the system may have been deactivated due to signal interference. Start the vehicle again and check if Parking Assist PARKTRONIC is working at a different location.
symbol appears in the instrument cluster and a warning tone sounds, it may be due to one of the following causes: The sensors are dirty: clean the sensors and observe the notes on care of vehicle parts More.
Parking Assist PARKTRONIC has been deactivated due to a malfunction: restart the vehicle. If the problem persists, consult a qualified specialist workshop.