BMW E36 causing a 'squealing' noise

[David William]

I have a BMW 3 series 316i Compact, built in 1999. I have owed the car for about 5 months. When I drive the car for a period of around 15 miles there is a squealing noise from the engine bay. I have taken the car to many different garages for their diagnosis, each garage has different conclusions.

At first I thought it was a bearing noise from the tensioner pully, alternator, water pump or something similar. I had the water pump replaced and it still makes the noise.

At the weekend a garage told me it was definatetly a blocked breather system, they removed the oil cap whilst the engine was running and this caused air to be sucked in rapidly through the open oil cap.

Further information - The noise only starts after about 10 - 15 miles of driving. It gets louder and louder as I'm driving. The noise mainly happens at idle and goes when I accelerate. The noise doesn't change tone or volume when pressing the clutch

[mogu83]

I know they (BMW) made a /2 and a /5 is a BMW 3 series a /3?

[Karamazov]

I know they (BMW) made a /2 and a /5 is a BMW 3 series a /3?

Interesting... I didn't know BMW made quads. Sounds like a Loncin engine to me

[MTBeemer]

Dave,

What folks are trying to tell you is that this is a motorcycle forum. You may get lucky.... there are some BMW car owners here and some folks that can probably fix just about anything. Now if you were having final drive issues we might be able to help.

[Lost Rider]

This forums might be able to help you more than this one….


http://www.bimmerfest.com/forums/forumdisplay.php?f=5

[David R]

Your intake is getting into the engine crank case.

Its leaking vacuum from the intake. The leak is making your crank case full of vacuum.

This also is the reason for the whistle. Things like aluminum and cast Iron change size with heat
This is why it takes a few minutes of warm up to start making the noise.

[dbrick]

The two extra wheels are part of it, too.

[websterize]

Whiskey Tango Foxtrot?

[dbrick]

E36 is a cage.