Join Date: Jul 2002
Location: Tucson, AZ, USA
Re: Blown headlight fuse...05 LT
I'm not familiar with the headlight system starting with 05. I looked up the headlights on line at MAZ BMW. I see that you have a seperate low beam.
In the past, people have had problems with the brown wire that grounds the light. I seem to remember people running a seperate ground for the light that solved their problem.
But, I cannot think of any reason that less than solid ground connection would draw more current? Perhapse the resistance increases through the problem contact?
Just running a temporary ground wire should show is the fuse stops blowing or not.
I'd have to look at the schematic to see if anything else is on the circuit for the fuse that keeps blowing?
In the future consider that changing a fuse to a higher current might be risky? I do not know if the increased risk involves damaging the wiring? If it does, fixing and replacing wires in a wiring harness is a PITA; especially if you aren't around home.
Best from tucson
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