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Thread: 540 M62TU rattle

  1. #1
    Join Date
    Aug 2017
    Location
    Sofia, Bulgaria
    Posts
    33
    My Cars
    1999 540iA

    540 M62TU rattle

    Hi guys,

    I'm having an issue, just started a few hours ago, I was driving normally when I started to hear a strange rattle, it occours at arround 2-2.2k rpm, till 3-3.2k, no power loss, no strange smells, also my interior headliner lamps stopped working, don't know if it's related. Below is a video of the issue.
    https://youtu.be/GRWyXB5ohug

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  2. #2
    Join Date
    May 2014
    Location
    Hockinson Washington
    Posts
    933
    My Cars
    Two 2003 540i6 Msports
    Sounds like a spun rod bearing. If that's what it is, don't drive the car.
    I do not believe in a risk free society where the thrill of living is traded for the safety of existence. Nick Ienatsch

    The law does NOT determine "right" from "wrong". They are unrelated.

    If you put cheap parts on your car, you will soon have a cheap parts car.

  3. #3
    Join Date
    Aug 2017
    Location
    Sofia, Bulgaria
    Posts
    33
    My Cars
    1999 540iA
    Quote Originally Posted by Santaclaus4 View Post
    Sounds like a spun rod bearing. If that's what it is, don't drive the car.
    Ya, but they are revised, could it he the vanos?

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  4. #4
    Join Date
    May 2014
    Location
    Hockinson Washington
    Posts
    933
    My Cars
    Two 2003 540i6 Msports
    All the clatter you hear at idle is from the vanos. The noise you hear at higher RPM definately sounds like rod or crankshaft knock. It sounds serious to me.
    Maybe drop the oil pan and look for shiny metal dust.
    I do not believe in a risk free society where the thrill of living is traded for the safety of existence. Nick Ienatsch

    The law does NOT determine "right" from "wrong". They are unrelated.

    If you put cheap parts on your car, you will soon have a cheap parts car.

  5. #5
    Join Date
    Aug 2017
    Location
    Sofia, Bulgaria
    Posts
    33
    My Cars
    1999 540iA
    Quote Originally Posted by Santaclaus4 View Post
    All the clatter you hear at idle is from the vanos. The noise you hear at higher RPM definately sounds like rod or crankshaft knock. It sounds serious to me.
    Maybe drop the oil pan and look for shiny metal dust.
    I recently had metal dust,.but.have no clue from where, it did eat 1l of oil for 800km, but looking fine after I added oil last week, no issues since, except this.

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