Whats that sound <<NOW WITH VIDEO!>>

bigwinn · Post by **bigwinn** » Fri Jul 23, 2021 2:49 pm

I never solved it on the 2.2 engine

The current 3.0 does it too

Lots been spoken about the z4 whistle

After making sure my intake boot was good I accepted that it wasn’t a failure approaching

I did read that it could be oil flow though the filter but I never concluded

Your doing it?

TheDan · Post by **TheDan** » Fri Jul 23, 2021 3:00 pm

Yep, mine is doing it and I just changed the intake boot (the common failing one) today and it is still doing it. I doubled checked the entire intake system to make sure all hoses were home and well clamped.

I have also read about possible causes being oil filter, CCV, belts, DISA, VANOS. Not a short list of troubleshooting there!!

I was planning to do the DISA and VANOS "upgrades" soon anyway, so fingers crossed.

bigwinn · Post by **bigwinn** » Fri Jul 23, 2021 3:12 pm

TheDan wrote: ↑Fri Jul 23, 2021 3:00 pm Yep, mine is doing it and I just changed the intake boot (the common failing one) today and it is still doing it. I doubled checked the entire intake system to make sure all hoses were home and well clamped.

I have also read about possible causes being oil filter, CCV, belts, DISA, VANOS. Not a short list of troubleshooting there!!

I was planning to do the DISA and VANOS "upgrades" soon anyway, so fingers crossed.

I did all of that and it still did it!!

Deffo worth googling the oil filter one but I only used high end filters

TheDan · Post by **TheDan** » Fri Jul 23, 2021 3:15 pm

bigwinn wrote: ↑Fri Jul 23, 2021 3:12 pm Deffo worth googling the oil filter one but I only used high end filters

Yeah I changed mine about 6 months ago and went for the recommended Mann filter. Pretty good brand I thought? Haven't changed the filter housing gaskets, so might have something to do with that?

Its becoming such a mystery!!

bigwinn · Post by **bigwinn** » Fri Jul 23, 2021 3:31 pm

If you sort it let us all know eh

TheDan · Post by **TheDan** » Sun Aug 08, 2021 6:38 pm

bigwinn wrote: ↑Fri Jul 23, 2021 3:31 pm If you sort it let us all know eh

Do you know what... I think I've solved mine (or it solved itself)!

Before my trip to Scotland I decided to get hold of another jubilee clip for the sound generator pipe that has been missing one since I bought the car. I fitted this, clamped it up tight and not heard the sound come back during the entire trip or since.

Obviously I'm not certain that this was the culprit but I changed nothing else and the sound went away. I'll keep listening out to see if it comes back.

bigwinn · Post by **bigwinn** » Sun Aug 08, 2021 6:45 pm

I’ll deffo have a look again! Cheers!

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