How To Install Flush Fit Parking Sensors

Parking Sensors Installation.

Dolphin Parking Sensors Fitting Instructions.

Do I Need To Remove The Bumper ?

For Parking Sensors Installation, this is one of the most important questions. And the answer can be complicated. You do not need to remove the bumper every time. You just need enough room behind the bumper to get your hand behind it. Best practice would be to test this before you do anything. A lot of vehicles will give you enough room to work, some do not.

If you think the space behind the bumper is too tight, you will need to research how to remove your bumper. For the most part, this is not a difficult job if you have the correct tools and there is a wealth of information online, including tutorials that are specific to your particular vehicle.

Flush Mount Sensor Diameter Measurements
Flush Mount Sensor Diameter Measurements
Flush Mount Parking Sensors Depth Measurements
Flush Mount Parking Sensors Depth Measurements

How To Use The Flush Mount Parking Sensors Hole Punch Tool For Parking Sensors Installation.

Please see the image of the hole punch tool below. The first thing you will need to do is mark on the bumper, 4 dots in a horizontal line representing where the center of each sensor will be placed. Each sensor will need to be placed 30mm apart max. If they are placed further apart than this, you might have blind spots between each sensor. This would be an issue if you have an obstacle directly behind you like a lamp post or a bollard. Each sensor has a 60 degree catchment area, which is a cone shape. That means 30 degrees up, down, left and right.

Going back to the hole punch, the backbone of the tool is the bolt that runs through it. This needs to pass through the bumper, so you will need to drill an initial mm hole that it will fit through. Once that is done, take the hole punch tool in your hand and remove the nut, washer, and solid metal stopper. This will leave you with the black cutting section attached. Now pass the bolt through the bumper so the black cutting section is pressed up against the bumper. Run your hand behind the bumper and re attach the solid metal stopper, washer and nut and tighten so everything is snug. You are now ready to start cutting.

What Flush Mount Parking Sensor Hole Punch Looks Like
What Flush Mount Parking Sensor Hole Punch Looks Like

To cut the hole, all you need to do is attach a ratchet to the front of the cutting tool and begin to tighten. As you tighten, the sharp black section will start to cut through the bumper until it is stopped by the solid metal stopper. Repeat this process until you have four identically sized 18.5mm holes.

How To Use Flush Mount Parking Sensors Hole Punch Tool
How To Use Flush Mount Parking Sensors Hole Punch Tool
How To Use Parking Sensors Hole Punch Tool With Ratchet
How To Use Parking Sensors Hole Punch Tool With Ratchet
What Flush Mount Parking Sensors Drilled Hole Looks Like
What Flush Mount Parking Sensors Drilled Hole Looks Like

How To Place Flush Mount Sensors Behind The Bumper.

Please look at image 3 below. Each sensor is made up of two separate parts. The outer ring, which has a layer of adhesive that attaches to the rear of the bumper. The second part is the sensor itself, which you screw into the bracket until it lies flush with the front of your bumper.

How To Screw In Flush Mount Parking Sensors
How To Screw In Flush Mount Parking Sensors

So with that said, you just need to carefully attach each bracket to the rear side of the bumper and then screw in each sensor from the rear until it lies flush.

What Flush Mount Parking Sensors Look Like Behind The Bumper
What Flush Mount Parking Sensors Look Like Behind The Bumper

How To Feed Each Flush Mount Sensor Into The Boot Of Your Vehicle.

Any vehicle should have a rear access grommet that you will be able to pass the sensor leads through into the boot of the vehicle. The exact location of this grommet will vary from vehicle to vehicle, so it is something you will need to research before you do anything else. Once you find it, the hole will be big enough to pass all the sensor cables through safely into the boot area. This is where you will pick up the power for the flush mount parking sensors.

 

How To Tap Into Your Vehicle’s Rear Light Cluster.

For rear flush mount parking sensors, you will need to power them via your reversing light. This means they will turn on when you go into reverse, and switch off when you change gear to move forward. Unfortunately, the location of the rear light cluster (and the specific wires you need to tap) vary vehicle to vehicle. So this is something you would need to research, depending on your vehicle. Once you have the correct wires, make sure you connect the red power lead of the interface box, to the reverse light tap. You will also need to connect the black, earth lead from the interface box to a chassis screw, or something similar that is direct to the body work of the vehicle. Do not connect this to any kind of wiring loom, otherwise you will get false alerts from the parking sensors.

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