Install Video to Use for Guide for Install of Trailer Wiring 2016 BMW X3
Updated 01/05/2026 | Published 09/15/2024
Question:
Hi, I had a curt C59236 tail light converter installed a while ago by haul. I just went to use it and the running lights come on when the brake us applied. If the running lights are on nothing changes when the brake us applied. Can you supply me with the right wiring diagram for my 2016 bmw x3? They obviously screwed it up. Thanks.
asked by: Thomas C
Expert Reply:
Hey Thomas, I attached a link to an install video that shows the Curt trailer wiring harness part # C59236 installed on a similar 2019 BMW X3 that will walk you through exactly how all of the connections need to be made on your X3.
Product Page this Question was Asked From
Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- Universal Fit
- 4 Flat
- Plug and Lead
- Splice-In
- CURT
more information >
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Jameson C.
1/5/2026
Hey Thomas, were you able to get the Curt tail light converter wired correctly after watching that install video? Knowing how it turned out could help others working on the same BMW X3 setup.