BMW 3-Series Towing Trailer with LED Lights

Question:

Hello, I have a 2004 BMW 330ci. My boat trailer has LED lights which do not function properly because of the low load. The system uses a 7-pin large round plug Australia Do you have an adapter which I can use to get my lights performing properly? Kind regards.

asked by: Chris B

Helpful Expert Reply:

We offer Curt 7-way wiring adapter # C57003 that is intended for your application with a European vehicle towing a trailer with super-efficient LED lighting that can confuse some wiring systems due to their limited power draw. This plugs in your 7-way and mimics the characteristics of standard incandescent lights.

I note you mention Australia in your question. This adapter was designed to vehicles made for the US market. Since the maker, Curt, does not have access to Australian versions of the car they would not have been able to test it.

Another option for correcting the issue is to install load resistors like # DI34ZR on each light.

expert reply by: Adam R