E85 Z4 keeps blowing Sat Nav Fuse (F49)

[T1berious]

Good Morning,

I'm hoping someone here can help or at least point me in the right direction. My Sat Nav screen recently went blank, I figured it would sort itself out after a restart but no, still lifeless.

I check the fuses and F49 is blown so I figure that's my problem! Yay!

Only to replace it and it goes bang instantly.

I was thinking of "resetting" the car and replacing the fuse while the battery was disconnected and see what happens.

Has anyone had something similar happen to them? Or know where I should be going to diagnose the fault?

Cheers for any info!

T1b

[Silverbullet767]

My guess would be a short in the wiring loom somewhere, maybe there's a common place for the Z4's loom to rub on bodywork?

[T1berious]

When you say socket which one are you referring to?

Do you mean the cigarette lighter?

[Simonuk]

Check the loom going to the phone holder in the center console. I had a short here which kept blowing the fuse to the nav screen. I ended up just disconnecting the wiring behind the passenger seat as it is quite difficult to replace!

[T1berious]

Brilliant! I'll look into that now!

[Simonuk]

It's a common area for a short as the wire can rub every time you open and close the center cubby hole.