E46 m3 knocking

Discussion in 'Faults, Fixes and Solutions' started by fredbloke, Aug 10, 2018.

  1. 10 Aug 2018 at 3:53 PM #1
    fredbloke

    fredbloke A mere Chipper

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    Hi all recently purchased an e46 m3 and on the way home it started to knock so turned it off and had it recovered.

    Trying to get in touch with the previous owner to get his take on it.

    It’s at my local garage but he seems to think that if it knocked then the likelyhood of the engine being repairable is pretty slim.

    What is you take on this? Pretty gutted as I haven’t even driven it properly yet.

    Cheers
     
  2. 11 Aug 2018 at 1:09 PM #2
    jjm3uk

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    What miles is it on??

    Maybe spun bearing but could be anything.
     
  3. 11 Aug 2018 at 5:09 PM #3
    fredbloke

    fredbloke A mere Chipper

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    It’s on 130k but good history and so on. I had planned to do the rod bearings anyway but now fear it way have done more damage.
     
  4. 11 Aug 2018 at 6:14 PM #4
    E46CoupeM3

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    I don't know why a garage would think it is not repairable unless a rod is hanging out the side.

    People who jump to expensive conclusions I would not use.

    Of course I don't know if they told the op unrepairable or economically unrepairable, which is unlikely too.
     
  5. 11 Aug 2018 at 7:17 PM #5
    fredbloke

    fredbloke A mere Chipper

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    Perhaps he means economically repairable.

    His thinking was if it’s knocking there will be allot of metal within the oil and it will have done damage to other parts of the engine, vanis unit, blocking oilways and so on. I had hoped that as I turned it off almost as soon as I heard it that I would have minimised the risk of other parts getting damaged.

    I do wonder that maybe he just doesn’t want to do the job. Which to me is rediculous.
     
  6. 12 Aug 2018 at 12:14 AM #6
    E46CoupeM3

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    Of course, it's not like the oil coming out of the bearings and returning to the sump it filtered before going around again, silly me
     
  7. 12 Aug 2018 at 11:07 AM #7
    fredbloke

    fredbloke A mere Chipper

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    Yes that’s a bloody point!
    I think il collect it and take it somewhere more confident.
     

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