1991 E36 318i Saloon - Battery Drain Fault (Linked to Fuse 33):

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  1. 1991 E36 318i Saloon - Battery Drain Fault (Linked to Fuse 33): 
    #1
    Bimmer Fan
    Car Details
    BigRed87's Car Details
    Model of Car:
    318i
    Year of Manufacture:
    1991
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

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    Jun 2009
    Location
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    Hello there everybody,

    not posted on here a while, often manage to find some lead towards a fix, from reading previous posts.
    Unfortunately,
    I'm having problems with my 1991 E36 318i saloon, and a Battery Drain, can't seem to fix.

    Farely certain, I've got this limited down to the circuit on Fuse 33 :
    [Charging Socket, Heated Door locks(don't have), interior lights, luggage compartment lights, telephone system(previous owner had a retro-fit kit installed, still have spaghetti junction behind the glove box as a result), and the left sidelights (which makes removing fuse 33 a no-no, could overwise have lived without all else.).

    Tell me? why left sidelight, and right sidelights on different fuses?
    anyway?

    Checked over volt/amps with a friend, found that Fuse 33 was 0.180, after car was asleep!
    Took the fuse out, dropped to 0.003 (Bingo?).
    Have sorted through trying to find the actual culprit, but to no avail. (might be a wire break somewhere/anywhere.

    wondering if anyone might have a circuit diagram clearly showing everything linked to fuse 33? or have any help on this?

    Unfortunately, with the remains of an old phone kit, and what also appears to be the alarm kit all stealing into the circuit/wiring looms (a wire from here, there), routing out the problem is a nightmare, finding it difficult to actually rip out the obsolete rubbish.

    I would love to be able to tidy up the wiring, finally get rid of the phone kit remains once and for all, and go from there.

    At present, now that i've limited it to this area, will take the fuse out over the weekend, maybe every evening i get home from work, with a sticky note on my dash to remind me each morning to put the blighter back in.

    Thanks in advance.
     
     

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    #2
    Dr of BMW gildersol's Avatar
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    Have you checked that the boot light is going ou when th eboot is closed?
     
     

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    #3
    BMW Master
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    adamantia's Car Details
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    All the external lighting is spread over varied fuses, so loss of one fuse wouldn't take out both rear lights for instance, only one. This idea is followed all round the lighting of the car.
     
     

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    e36318iscoupe's Car Details
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    e36318is
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    Download BMW ETM E36 circuit diagrams
    have a look at this manual may help
    There's an alternative. There's always a third way, and it's not a combination of the other two ways. It's a different way

    I see you've made you're decision now lets see you enforce it.

    The search facility on here is your friend

    PLEASE READ THE POSTING RULES, FOR SALE RULES, & HOW TO CORRECT THREAD TITLES
     
     

  7. The Following User Says Thank You to e36318iscoupe For This Useful Post:

    BigRed87 (15-04-2012)

  8.  
    #5
    Bimmer Fan
    Car Details
    BigRed87's Car Details
    Model of Car:
    318i
    Year of Manufacture:
    1991
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

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    Jun 2009
    Location
    Gloucestershire
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    Big thanks for the Manual. Will take a look in to this.

    And yeah, Boot light is fine, have checked this one, same as the Glove box light.
    (Seen that it's a frequent point of interest).

    I've a gut feeling that the old retrofit phone kit is in someway responsible, despite wires having been cut etc., there's still some wires tapping into the circuit, so gonna have to try and trace this back through, see if there's a break/short, hopefully the manual will help guide me!

    As for the sidelights, it's the left hand side. Both Front and Back.
    I could happily have lived without the front sides, they're next to useless. But the rear, can't afford to let that one slide, drivers behind will see only my one right hand light, might think i'm a bike or something!!!

    Cheers so far.
     
     

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