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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > No power to cigarette lighter fuse



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      11-17-2017, 06:52 PM   #1
Droshki
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No power to cigarette lighter fuse

Hi everyone-

Apologies if slightly off the spot where this should be, but obviously Im new here, and this looked like the closest sub-forum to my issue.

I recently purchased a 2008 335i convertible (this translates to F32?) and like the title says, there is no power to the cigarette lighter fuse Not the cigarette lighters-- the fuse itself.

I noticed the lighters had no power, so I found the appropriate fuse, (8) and it checked good, but there is no power to it, where it plugs into the fuse block. I verified this, and made a temporary modification, by using a paperclip to jump power down from the supply side of the empty fuse socket above it, to the load side of the lighter fuse (8). This enabled the lighters to work , but obviously this is not the best situation sine they are now powered with no fuse.

How can I remove the fuse block to see whats going on behind it? It looks like this would be a major project. Or, is there another fuse upstream that could be blown and causing this?

Thanks in advance for any help. I'm a long time member of the Corvette forum (but am finding BMWs more comfortable as I age) and know that members helping members is a huge part of a forum such as this.
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      11-17-2017, 08:10 PM   #2
ctuna
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2008 335i convertible is an E93

https://www.newtis.info/tisv2/a/en/

Technical info and wiring diagrams at the above
link.

fuse numbers change by model year .

http://redirect.viglink.com/?format=...7x8H3pN8h1fMuF

http://redirect.viglink.com/?format=...xo19teM9vkTF-C

electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU

Fuse f8 is gated by a relay the car has to be turned
on for there to be voltage there according to the
wiring diagram. And that's the way my car works
not turned on no power. See FUSE 8 pdf wiring diagram.

This would be more a general board question than one for the stereo board.
Attached Images
File Type: pdf FUSE F8.pdf (162.5 KB, 9 views)

Last edited by ctuna; 11-17-2017 at 09:24 PM.
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      11-21-2017, 05:17 PM   #3
Droshki
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Thank you.
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