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      03-09-2026, 12:26 PM   #1
timchump
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HVAC control panel not working

Hi all

In desperate need of some help, installed a mr12volt onto my 135i
All is working ok except the climate control panel, which is completely dead.
There is a connector under the glove box that I’ve spent hours probably days trying to find where it plugs into but I’m at a complete loss

Any thoughts much appreciated
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      03-10-2026, 08:06 PM   #2
zx10guy
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Try checking the fuse box. I was messing around in the center console and some how blew the fuse for the HVAC controls. Freaked me out as the entire panel/module was dead. The stupid fuse diagram was no help as the symbols made no sense as to what the function is. Through process of elimination, I found fuse 75 to be the one for my HVAC controls and it's a 5A fuse. The fuse was blown and replacing it brought the panel back to life.
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      03-11-2026, 04:57 AM   #3
timchump
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Thanks ive been informed on another forum that the wire in my first post has nothing to do with the HVAC not working, so i'm guessing i may have blown a fuse like you

How do you get the fuses out of the board without causing any damage? they seem tightly packed
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      03-11-2026, 08:39 AM   #4
zx10guy
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There's a fuse puller tool that is in the fuse box. It's white in color. It looks similar to this:

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