When reversing, both rear and front zones are monitored.
The system is activated automatically when the ignition key is turned to position 2 and remains active until the vehicle speed exceeds 15 km/h - the system is also deactivated automatically.
Re-activation of the PTS occurs when the vehicle speed drops below the threshold of 15 km/h.
It is possible to forcibly turn off the PTS using a switch installed on the vertical section of the console (see Section Controls and interior equipment).
Attention! The correct functioning of the Parktronic system depends to a large extent on the degree of contamination of the ultrasonic sensors installed on the front and rear bumpers. Interference can be introduced by sources of ultrasound (including the squeal of air brakes on trucks).
The front area is monitored by six ultrasonic sensors built into the front bumper trim (two in the middle and two in the corners), rear - by four sensors in the rear bumper. The range of the sensors is 100 cm for center front sensors, 60 cm for corner front sensors, 120 cm for center rear sensors and 80 cm for outer rear sensors.
The minimum allowable distance between the sensor and an obstacle is 15 cm for corner sensors and 20 cm for central sensors, then the sensitivity threshold is violated. Keep the surface of the bumpers clean.
PTS indicator lights
1 - Indicator on the instrument panel
2 - Indicator in the rear light assembly
3 - Frame
4 - Segments
A 3-second acoustic signal warns the driver of a dangerous approach to an obstacle while parking, in addition, special light indicators are provided on the instrument panel and in the rear saloon lamp assembly. The indicators are divided into 6 yellow and 2 red segments, the degree of activation of which corresponds to the distance to the nearest obstacle.
When connecting the trailer wiring to the tow bar connector (with appropriate vehicle equipment) the system will automatically turn off.
In the event of a malfunction of the PTS, the red segments of all system indicator lights are activated and a 3-second acoustic signal is emitted - check the cleanliness of the bumper surfaces. If necessary, drive the vehicle to a Mercedes-Benz Dealership to carry out the necessary refurbishment of the system.