Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Brief description of components
PDC consists of the following components:
- 8 ultrasonic sensors
There are 4 ultrasonic sensors in each of the front and rear bumpers.
The ultrasonic 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.
IMPORTANT: Measuring range of ultrasonic sensors
The measuring range of the ultrasonic sensors is between approx. 25 centimeters and a maximum of approx. 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.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.