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Thread: Difference in ignition coils?

  1. #1
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    Default Difference in ignition coils?

    I know that I need an ignition coil for my car. No spark. Bmw made two different types of coils. 1. Ring type, 2. Can style. Does it really matter which one is used? The can style is by far less expensive than the ring type. Besides cost, is there a difference in voltage output between the two?
    TIA...........Felix This is for a '89 535i auto

  2. #2
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    Not sure what the 2 types are that they are referring to, but you should have the can type on a 535i.

    525i's and 530i's have individual coils on each spark plug, your car only has 1 coil with plug wires leading from the distributor cap to the individual spark plugs.

    Where are you getting your info? Maybe that would help.

    Bret.

  3. #3
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    Thanks Bret, I have the ring type coil. It comes on some of the 7 series, and some 8 series also. I have a Parts store here named Olympic auto parts, and they are pretty good. Can get pretty much get all OEM parts, excluding body parts. I also did some research on the net, and it showed the two different styles. The only thing I can't figure out is if there is a difference in voltage output.
    Last edited by Felixdacat; 10-30-2006 at 04:41 AM.

  4. #4
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    Default

    bump

  5. #5
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    Quote Originally Posted by Felixdacat
    bump
    Post a pic Fx

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    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  6. #6
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    Default Pics of coils

    The can style top pic, and the ring style bottom pic. Mine is the ring style.
    Attached Images Attached Images   
    Last edited by Felixdacat; 10-30-2006 at 06:41 AM.

  7. #7
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    Ah, isnt the bottom one the type of coil pack used on distributor-less 4 cyl vehicles?

  8. #8
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    no that's just the later style m20/30/70 coil, most of the 318s used the same coils as the m50, it just has a plug wire stuck on the bottom of it instead of the boot connector

    Quote Originally Posted by Ferret
    Ah, isnt the bottom one the type of coil pack used on distributor-less 4 cyl vehicles?
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  9. #9
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    Quote Originally Posted by winfred
    no that's just the later style m20/30/70 coil, most of the 318s used the same coils as the m50, it just has a plug wire stuck on the bottom of it instead of the boot connector
    Ah So! That second one looks too small to have the thermal capability to run a 6 cyl... that's where the confusions come from.

    I could just be misinterpreting the size though.

  10. #10
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    Quote Originally Posted by Ferret
    Ah So! That second one looks too small to have the thermal capability to run a 6 cyl... that's where the confusions come from.

    I could just be misinterpreting the size though.
    I have the second one on mine I think, it must have been stock in 1988...

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