Ultrasonic Sensors
There are 4 ultrasonic sensors in each of the front and rear bumpers. The sensors emit ultrasonic impulses. These ultrasonic impulses are reflected by obstacles (echo impulses).
The ultrasonic sensors receive and amplify these echo impulses. The amplified echo impulses are then converted into a digital signal. Each ultrasonic sensor has its own microprocessor, its own power supply and its own data connection to the PDC control unit.
The measuring range of the ultrasonic sensors is between approximately 25 centimeters and 200 centimeters. If the minimum distance that can be detected rises to an impermissible level, a fault message is entered in the fault memory.
Dirt contamination, moisture, ice and snow can cause an impermissible rise in the minimum distance that can be detected.
To make sure the system remains fully operational, keep the ultrasonic sensors clean and free from ice. Do not clean by spraying high-pressure washers directly at the ultrasonic sensors. When cleaning, always maintain a minimum distance of at least 10 centimeters.