BMW X5 Parking Sensor Problem

[Rjoubran]

Originally Posted by Vitalik

Hi!
Take your X to any noiseless area,switch ignition ON and engage reverse gear.Listen and put the finger to
each sensor.You must heard and sense a 4Herz (four times per second) impulses from every sensor in front and rear of car. Replace sensor(s) which not transmitting ultrasonic signals. Another way is taking
your car to GT-1 or DIS computer to define which
sensor is faulty.Good luck!

Thank you Vitalik. I followed your method and it worked perfectly. To hear the ping better, I touched the metallic tip of the screwdriver to the parking sensor and got my ear closer to the handle. This seems to amplify the pinging sound of the sensor. It was loud and clear on all good sensors. The silent sensor just needed cleaning at the electrical connection. Cheers and thank you.