BMW 3 Series Trailer Wiring

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Trailer Wiring

Available Years for BMW 3 Series Trailer Wiring


Trailer Wiring Harness

Make installing your trailer wiring harness as easy as possible with a custom fit wiring harness. Trailer wiring from Draw-Tite, Curt, Pollak, Tow Ready, Bosal, and Hopkins eliminates or reduces the need to cut and splice wires. It also helps to protect your vehicle's sensitive electronics from mis-wired trailers.

Choose the year of your vehicle to the left to find a custom fit trailer wiring harness.




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BMW 3 Series Custom Fit Vehicle Wiring Videos

Trailer Wiring Harness Installation - 2018 BMW 3 Series

Today on our 2018 BMW 3 series, we're going to be taking a look at, and showing you how to install the Tekonsha ZCI circuit protected vehicle wiring harness with four pole flat trailer connector, part number 119250KIT. It's going to provide us with a four pole flat trailer connector, and it's gonna give us all the required lights to get down the road safely, like our brake lights, running lights, and our turn signals. It's gonna have a dust cap to keep all the dirt and debris out of our connector, and we can use it to hang our excess wire real close to our hitch, so it'll be ready for us whenever we want to tow.The really nice thing about our wiring is the fact that the ZCI is gonna stand for zero contact interface. So, we're not gonna have to cut, splice, or do anything to our factory wires except simply put a clamp around it. Those clamps are gonna detect that signal, go through a converter box, and send it out to our connector. That's gonna reduce the strain on our vehicle's tail lights and turn signals because it's not tapping directly into it and it's gonna prevent us from having to cut into the wire and voiding any kind of warranties.



Trailer Wiring Harness Installation - 2007 BMW 3 Series

Today on this 2007 BMW3 Series we're going to install part number 56146KIT. This is a Curt upgraded circuit protected taillight with converter hardware kit. These are the components that come with the kit. This is the module with our wires that go out to our turn signals. This set of wires goes out to the left-hand side, yellow for left turn, red for stop light circuit and brown for running light circuit. The white wire to ring terminal will go directly to the body for ground.