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      02-20-2021, 02:55 AM   #8
Bmmrr
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Drives: E92 335i lci
Join Date: Dec 2018
Location: London, England

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2011 335i  [0.00]
Quote:
Originally Posted by Herakles View Post
Quote:
Originally Posted by Bmmrr View Post
I had a high pitch whistle just like that when I did an ofhg replacement.

turns out that I managed to disconnect a tube that, I believe, ran to the back of the car for the exhaust valve.

mine had disconnected at the front of the shock mount.

you can identify the pipe and follow it to check, you will be able to find it easily by looking by the hood hinge on the right and it runs down along the side, in from to the shock mount, at this point there is a short piece of rubber tube connected at both ends, and around under the airbox..

the whistle was just the engine vacuum sucking air in through the small pipe.
You the man! After shoveling out the snow I thought let me check .. and I found it! When I connected it seemed to collapse the tubing is that normal,? What is it ?
Hi

Sorry for not getting back sooner, I've not had any notifications.

So, it was that pipe than? glad I could help.

As I say, I'm not sure what it was, but like yours mine collapsed when I reconnected it and the whistle stopped.
I tried to follow it but without stripping some parts off I could not get to either end so just left it and assumed it was the vacuum pipe that ran to the exhaust flap.
When I reconnected mine it was quite loose so I put a small cable tie in each end to ensure it wouldn't come apart again.

The OFHG, is the oil filter housing gasket
Appreciate 1
Herakles247.50