Information - Parking Sensor

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.

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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.

PDC at low cost: Top Spares

Parking sensor ab Facelift Front AMG Black Series (VEMO, V30-72-0022)
-12%
Parking sensor | VEMO V30-72-0022 Article №: V30-72-0022
VEMO Parking sensor V30-72-0022
£ 42,99
£ 37,83
incl. 20% VAT, Shipping
Over 100 items in stock
  • Fitting Position Rear, Front
  • Length [mm] 50,4
  • Width [mm] 29,6
  • Height [mm] 27,8
  • Colour Black
  • Shape angled
  • Sensor Type Ultrasonic Sensor
  • Supplementary Article/Supplementary Info with seal
  • Surface Primed
  • Number of connectors 3
  • Chemical Properties Paintable
  • Housing Colour Black
  • See accessories list for additionally required parts
  • Part number of recommended accessories V99-72-0001
Details
Parking sensor for vehicles with hatch doors for vehicles with heavy duty suspension Czech Republic (VALEO, 890000)
-12%
Parking sensor | VALEO 890000 Article №: 890000
VALEO Parking sensor 890000
£ 47,49
£ 41,79
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
  • Fitting Position Front and Rear
  • Chemical Properties Paintable
  • Length [mm] 40,85
  • Width [mm] 22
  • Height [mm] 26,3
  • Number of connectors 3
  • Diameter [mm] 15,48
  • Weight [kg] 0,03
Details
Parking sensor Rear (MEAT & DORIA, 94537)
-12%
Parking sensor | MEAT & DORIA 94537 Article №: 94537
MEAT & DORIA Parking sensor 94537
£ 32,49
£ 28,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
  • Colour Black
  • Number of Poles 3
  • Connector Shape D-Shape
  • Socket colour Ivory White
  • for OE number 7H0 919 275 B
Details
Parking sensor SMART Rear for vehicles with park assist system R-Design Slovakia (TOPRAN, 115 537)
-12%
Parking sensor | TOPRAN 115 537 Article №: 115 537
TOPRAN Parking sensor 115 537
£ 30,99
£ 27,27
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
  • Chemical Properties Paintable
  • Colour Black
  • Colour Code 9B9
  • Number of Poles 3
  • Supplementary Article/Supplementary Info with seal
Details
Parking sensor Rear (RIDEX, 2412P0017)
-12%
Parking sensor | RIDEX 2412P0017 Article №: 2412P0017
RIDEX Parking sensor 2412P0017
£ 14,49
£ 12,75
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
  • Colour Black
  • Chemical Properties Paintable
  • Number of Poles 3
  • Supplementary Article/Supplementary Info with seal
Details
Parking sensor Front (RIDEX, 2412P0019)
-12%
Parking sensor | RIDEX 2412P0019 Article №: 2412P0019
RIDEX Parking sensor 2412P0019
£ 11,49
£ 10,11
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
Details
Parking sensor Front and Rear (METZGER, 0901082)
-12%
Parking sensor | METZGER 0901082 Article №: 0901082
METZGER Parking sensor 0901082
£ 17,99
£ 15,83
incl. 20% VAT, Shipping
Over 100 items in stock
  • Number of connectors 3
  • Chemical Properties Paintable
Details
Parking sensor Front (BOSCH, 0 263 009 638)
-12%
Parking sensor | BOSCH 0 263 009 638 Article №: 0 263 009 638
BOSCH Parking sensor 0 263 009 638
£ 38,49
£ 33,87
incl. 20% VAT, Shipping
Over 100 items in stock
  • Sensor Type Ultrasonic Sensor
  • Surface Blank
Details
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