1992 E36 320i Power Wiring

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  1. 1992 E36 320i Power Wiring 
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    Right chaps and chapesses, as you know I recently puchased a rolling shell, complete with engine and wiring.

    I'm currently tracing all wiring and attaching notes to anything I need to transfer accross to the awaiting 316 shell. I have however, come across a few minor wiring discrepancies.

    Can anyone please confirm what the 2 power cables running from rear to front go to, I understand the thicker to be going to the fuse box, however there is a thinner (around 5mm dia.) tyrap'd to the side of this, but this has been cut just through the engine bulkhead and is currently left floating.

    Cheers again,
    Steve
    Last edited by steviec_lj; 05-11-2009 at 01:58.
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    Bit of an update...

    I now have the power cable out of the rolling shell, and part transferred across into its new home, however the question still unanswered is...

    Can anyone identify what the power cables from the boot to the engine compartment are for at all? I have a 20mm dia. and a smaller 5mm dia RED power cable running the while length of the vehicle.

    I understand that the 20mm dia. cable is the primary feed to the engine compartment, but I am fumbled as to what the 5mm dia. cable is required for? If anyone can shed some light onto this, it would be great, I can provide a picture tomorrow!

    Cheers
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    RYM
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    They are to supply voltage from the battery in the boot to the jump post positive terminal under the bonnet.

    Out of interest how have you got these through your bulkhead?

    This jump post will then have wires connect to it from the engine loom that both IIRC connect to the fuesbox? I will have to check this and report back as it's too dark and burrrrrrrrrrrrrrrrrrry cold to go looking now

     
     

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    Yes, they go to the "Jump" point first, then across the engine bay to the fuse box, confused as to why one has been cut at both ends however. I was thinking of mounting a battery in the engine compartment, although space seems a premium here.

    The cable is through some pre-punched holes in the both the bulkhead and rear seat back on the drivers side of the vehicle. Theres a grommet at the rear, but I need to get one for the front before routing the cable.
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    Quote Originally Posted by steviec_lj View Post
    Yes, they go to the "Jump" point first, then across the engine bay to the fuse box, confused as to why one has been cut at both ends however. I was thinking of mounting a battery in the engine compartment, although space seems a premium here.

    The cable is through some pre-punched holes in the both the bulkhead and rear seat back on the drivers side of the vehicle. Theres a grommet at the rear, but I need to get one for the front before routing the cable.
    Seems odd that the wire has been cut both ends

    I was asking where you passed the cable through the bulkhead because I did a thread showing the hole to pass the cable through when I did mine





     
     

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    Yep, that looks like the badger! Quite handy how theyre pre-punched so you can just knock them out at a later date.

    Still unable to find where the extra power cable should route to, everything worked at the time of testing, so can't be much of a problem. Something will no doubt come to light at a later date though.
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    The 70mm from the battery goes to the jump start point, then on a 25mm cable to the connection that leads off to the starter and alternator.

    The smaller 6mm cable from the battery goes to the jump start point, then to the B+junction (centre of bulkhead?) which provides the auxiliary constant live power to the likes of the DME, DME relay, fuel pump etc.
     
     

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    steviec_lj (05-11-2009)

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    #8
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    Thanks gildersol.

    I shall double check this in the morning if the rain eases up for us. I shall also get some pictures if its any different.
    Current Car:

    Kill List:
    1994 BMW E36 316/320/325 Conversion
    1993 Ford Escort 1.4 ::: 1994 Vauxhall Astra 1.7TDi ::: 1995 Ford Escort 1.4
    1994 Volvo 940se Turbo ::: 1999 Vauxhall Vectra 2.0 SRI (140)
     
     

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