Quote:
Originally Posted by mrad01
Quote:
Originally Posted by andrew270681
Im curious to see what it is. My car does the same thing! Just happens for a second then goes away.
My stealership told me its normal everyone here says its not..
Im very curious to see if it is the check valve on the vanos. Makes sense.
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VANOS rattle on cold startup is normal - it is the metallic knocking noise which occurs just after the rattle which is the problem here. Have a close listen to the video on the first page of this thread.
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Mine does that from time to time. I just thought it was part of the rattle. Obviously it's not.