Alter the Parking Sensors On a BMW E46
Parking sensors tell you with a beeping buzz Until when absent you are from a wall or obstruction when you're parking, normally in reverse. Replacing one on a BMW E46 is charming straight forward on the contrary tedious seeing you corner to remove the bumper. So high as you bear the Correct tools for removing your bumper--a torque wrench and an 8mm socket--you can modify the sensor in an afternoon.
Instructions
1. Remove the fasteners inside the rear circle wells. There are four fasteners on Everyone side, which you can access by pulling off a plastic liner inside the trundle beefy. It Testament be soiled, so annex a rag and soap near by.
The sensors should be connected to the bumper with tape. As you remove the antique sensors, letter their placement so you can community the advanced sensors in the good spot. Bring about decided the power supply to the sensors is turned off when you remove it so that you don't arouse shocked when bewitching outside the wires. The wires Testament be fed wound up a hole in the rear of the car that the rear lights' wires are also fed through.
3. Catch off the bumper trim by pulling on it.
4. Remove the two 8mm or Torx bolts that control the bumper insert to the bumper. Employ an 8mm socket or Torx 50 part on the torque wrench to remove them.
5. Pull on the bumper, on the other hand don't completely loosen it since your parking sensor wires may be connected. Whether so, disconnect these and deposit the bumper on a blanket nearby. Putting the bumper directly on the ground, expressly on sidewalk, Testament scratch it.
6. Remove the parts of the fossil parking sensors: the aptitude servicing, array, wires, exposure panel, and sensors.2. Loosen the bumper include from the lower quarter panel by urgent down a clip that holds the two calm. On pre-2001 models, you'll gain to remove one screw moreover to the clip. Make sure when you remove these wires you do so carefully, so you don't damage the wires for the lights.
7. Tape the new sensors where the old sensors were on the interior of the bumper. Feed the wires of the sensors through the holes in the car just as the previous wires were fed through, unless you're using a wireless system, in which case there are no wires to be fed to the control panel. If that's the case, make sure the antenna is connected to the bumper according to the manufacturer's instructions. Otherwise, you will need a friend's help to feed the wires through the body of the car, because you have to reposition the bumper. Though the bumper's only about 20 lbs., it's easiest to attach to the car with a friend's help.
8. Attach the wires of the new system to the power supply in the back of the car. This power supply also powers the rear lights and should be what the previous parking sensor system used. The parking sensor kit should come with wire nuts to tie the new wires to the power supply.
9. Test the new sensor system according to the manufacturer's instructions.
10. Reattach the bolts, clips, trim and fasteners that had held the bumper in place.
