Many people in Colorado with BMW X5 and X3 SUVs want to tow a small trailer or mount their bike or ski rack to the back of their vehicle. There are aftermarket trailer hitch kits for some of the years, but not all of them. The BMW factory trailer hitch is a great option and not as expensive as you might think. If you actually plan to tow a trailer, the factory trailer wiring harness makes the process a lot smoother. The modern electrical system BMW uses to control the vehicle’s exterior lights does not allow you to just tap into the wires for the brake lights and turn signals like you could with older cars.
Installation of factory or aftermarket trailer hitches does require removal of the rear bumper. In this case w also had to use a cut off wheel on our angle grinder to cut a small portion out of the bumper.
