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Parking radar, also known among drivers as acoustic parking system, parking sensors or as ultrasonic parking receiver is an auxiliary parking assistance system. The system uses ultrasonic sensors built into the front and rear bumpers in order to measure the distance to the nearest object. The system produces an intermittent warning sound, and in some versions, also shows information about the distance on the display, which is built into the dashboard in order to indicate the distance to which the vehicle is located remotely from the obstacle.

When the distance to the obstacle gets shorter, the sensors increase the frequency alarm. When an obstacle is one or two meters close the system produces the first sounds, and in dangerous proximity of 10-40 centimeters to the obstacle the alarm sound becomes continuous. Usually, the system is automatically included in conjunction with the reverse gear. There are many types of parking systems, which differ in the number and arrangement of ultrasonic sensors. The simplest systems use a two-sensor unit mounted in the rear bumper. The system is automatically activated when the driver includes the reverse gear.

Very common are similar systems that use four sensors, which are mounted into the rear bumper at a distance of about 30-40 centimeters from each other. Such an arrangement of sensors eliminates the appearance of "dead zones". More complex systems are equipped with two or four sensors on the front bumper. The system notifies the approach to the obstacle when the driver pushes the brake pedal. Sophisticated systems use more sensors, located also on the sides of the car.

Did you finally decide to equip your car with a parking assistant, or replace the old one? Then come to our online store. Select the required parking sensors system, order it at a good price, and we will deliver it to you in the shortest time as well as other parts, such like dampers, ignition coil or radiator grille.

What you need to know about parking sensor replacement: lifetime limits, common defects and their signs, tips and recommendations

Parktronic or ultrasonic parking sensor doesn’t have certain lifetime limit. Replacement is performed in case of short circuit. The parking assistance system also breaks down often due to breakage of wires which connect the control unit with sensors. The cause of parking radar replacement can be mechanical damage of its elements, ingress of water or dirt into the component.

More often defect sign is the following: the device is constantly active or, vice versa, it doesn’t warn about obstacles presence because of defects. In order to find out which parking sensor is out of order, close each of them with your hand one by one. At the same time your partner should watch the parking sensor indicator in the cabin. If you didn’t find out the defective element this way, then the parking system is to be checked by service station specialists.

In most cases parktronic replacement can be performed on your own. In this case you need to remove the broken down components. Usually it can be easily done with the help of a small flat head screwdriver or a clip-remover. Then you should disconnect the wire from the broken down parking sensor. After installing new component you can test the system.