Quote:
Originally Posted by MartinKarafin
I haven't had much time to diagnose it, but i've talked to people and found somebody who was chasing a similar noise on a XC60. After replacing many things it turned out to be a very small leak between the head and exhaust manifold.
Will try to listen to the manifold with a stethoscope this weekend.
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Did an oil change and afterwards pulled off the turbo heatshields. Access wasn't great but managed to get the stethoscope on the exhaust manifold. Nothing, no noticeable knocking. So i'm also out of ideas.