Start by installing the Parktronic sensors 6, 7, 8 and 9. Make sure their retaining tabs reliably seat in the bumper cover. Afterward, connect the Parktronic wiring harness 4 to the bumper 1. Attach the upper sections 3 of the bumper corner to the bumper corners 2 and connect the bumper corners 2 to the bumper 1. Position the bumper 1 with bumper corners 2 on the vehicle and fasten the bumper 1 at collar bolts 3 to 9 Nm (80 in. lbs.). Join the wiring harness of the Parktronic sensor 9 electrical connector, and fit a new cable strap 7. Install the clips 9 at the lowest section of the bumper 1 and secure the bumper corner upper sections 6 on both sides, ensuring that they are fully seated. Affix mounting clips 5 to bumper corners 2. Connect the marker lamp electrical connector to protective strips 4, and install protective strips 4, ensuring clips are fully seated. Lastly, fix the protection strip screws on the wheel wells.