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  1. #1
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Fuse and Battery light

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    Hi everyone,

    Iím pretty new to the B5 S4 world as I just bought my first one 4 days ago as a project to compliment my B8 S4 and I tried to search the forum for answers on this but no luck.

    So 2 days ago I was installing an interior LED kit in my car and the one to the passenger side footwell blew during installation and now that side will not work with either the oem bulb or any new bulb. This also led to my dash showing a FUSE error in the mileage counter and a battery light as well as my battery not moving past 8 volts.
    Alternator checks out fine and so does the battery. I couldnít find any bad fuses in the fuse box. Anyone have any ideas?
    Thanks in advance.


    Manual 2000 B5 S4
    220k miles



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  2. #2
    Veteran Member Four Rings vavJETTAw36's Avatar
    Join Date
    Jul 04 2012
    AZ Member #
    96276
    Location
    Woodbridge, VA

    What does the fuse error look like?


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  3. #3
    Veteran Member Four Rings zillarob's Avatar
    Join Date
    Nov 16 2010
    AZ Member #
    67118
    My Garage
    2kS4, 84gli, 84caddy dsl
    Location
    WetSide, WA

    There are a few fuses in there for the cluster, one of them will make it say that.
    Look on the back side of the cover for which ones they are, should be easy to figure out.
    There are only 2 things needed to make an Audi work properly - Duct tape and WD40. If it moves and it shouldn't - Duct tape. If it doesnít move and it should - WD40.

  4. #4
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Quote Originally Posted by vavJETTAw36 View Post
    What does the fuse error look like?


    Sent from my iPhone using Tapatalk
    IMG_0547.JPG
    Thatís the use light I got



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  5. #5
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Quote Originally Posted by zillarob View Post
    There are a few fuses in there for the cluster, one of them will make it say that.
    Look on the back side of the cover for which ones they are, should be easy to figure out.
    Ok Iíll check this out and report back
    Thanks.


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  6. #6
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Quote Originally Posted by zillarob View Post
    There are a few fuses in there for the cluster, one of them will make it say that.
    Look on the back side of the cover for which ones they are, should be easy to figure out.
    So I went through all the fuses and found the culprit but Iím having a crazy issue now. I tried to install a new 10a fuse and it instantly blew out. Tried it 3 more times with the same result. Iím guessing a short some where but no idea how or where.
    The bad fuse was in position 15 (instrument cluster, air conditioning.


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  7. #7
    Veteran Member Four Rings zillarob's Avatar
    Join Date
    Nov 16 2010
    AZ Member #
    67118
    My Garage
    2kS4, 84gli, 84caddy dsl
    Location
    WetSide, WA

    Id be pulling out all the bulbs you just put in and paying extra attention to the one in the footwell.
    If you get the fuse to not blow, add them back 1 at a time and see it you get to one that pops it again.
    There are only 2 things needed to make an Audi work properly - Duct tape and WD40. If it moves and it shouldn't - Duct tape. If it doesnít move and it should - WD40.

  8. #8
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Quote Originally Posted by zillarob View Post
    Id be pulling out all the bulbs you just put in and paying extra attention to the one in the footwell.
    If you get the fuse to not blow, add them back 1 at a time and see it you get to one that pops it again.
    I removed them all and the fuse still blew which confused the crap out of me. I might have to find a wiring diagram and start trying to find a shirt unless you guys have a better idea. Which I hope you do


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  9. #9
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Also would putting in a slightly stronger fuse be a terrible idea?


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  10. #10
    Veteran Member Three Rings m_haiser's Avatar
    Join Date
    Apr 24 2011
    AZ Member #
    74529
    My Garage
    Highland Green Allroad
    Location
    Oregon Coast

    yes that causes wires to get hot because they are supplying more power than theyre rated for and can cause a fire.

  11. #11
    Active Member Two Rings dcmk7's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2015 Audi A3
    Location
    North Jersey

    Quote Originally Posted by m_haiser View Post
    yes that causes wires to get hot because they are supplying more power than theyre rated for and can cause a fire.
    Ok then thatís definitely a no go. Thanks
    Iíll have to see if I can figure out whatís causing the short or overload


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