What is this hose? Picture included

[90pioneer]

Was checking my air filter today and a hose off the back of it connected to a plastic piece that would be used to connect two hoses together. Well the end of the plastic piece plugs into the hose in the picture (screw driver is pointing at it).

This hose has a large crack in it and appears to be oddly shaped where it goes back against the block. I can't see where the other end went.

What is the name of this hose so I can purchase a replacement, and what all needs to be removed to change it out?

Here it is:




Also while I have your attention, does all that oil look light it might be coming from the valve cover gasket?

[Vivek]

You sir have to deal with your mess under the intake ;). It's okay, I do too...my brakes are super hard. And yes all that oil is from the VC gasket.

[90pioneer]

You sir have to deal with your mess under the intake ;). It's okay, I do too...my brakes are super hard. And yes all that oil is from the VC gasket.

Besides the cracked hose, what in particular is wrong with under my intake?

I just bought this car last week...

[Vivek]

It's a common m42 problem. Basically every hose will be cracked/split like that.

[AndrewBird]

The "Mess-under-the-intake" fix:

http://www.m42club.com/forums/showthread.php?t=2742&highlight=323+Flywheel

Basically there are a bunch of hoses running to various things under the intake. As they get old, they will get brittle and crack, causing vacuum leaks and make the engine run poorly. A lot of it you can just eliminate and make simpler, which means less points of failure.

[TimKninja]

See Simon's mess under the intake thread. It was an extremely stupid design BMW put together.

[Ryann]

^Yes. It's so much shittier than a driveway engineered mess of bullshit you bought at Home Depot.

[AndrewBird]

^Yes. It's so much shittier than a driveway engineered mess of bullshit you bought at Home Depot.

It is actually, that's the shitty part. lol

[Ryann]

I disagree. It works perfectly and lasts 115k.

[bmwm42]

I half way agree

[AndrewBird]

Next you are going to say that the one sided thrust bearing was a great idea and that the timing components are perfect.

[90pioneer]

The "Mess-under-the-intake" fix:

http://www.m42club.com/forums/showthread.php?t=2742&highlight=323+Flywheel

Basically there are a bunch of hoses running to various things under the intake. As they get old, they will get brittle and crack, causing vacuum leaks and make the engine run poorly. A lot of it you can just eliminate and make simpler, which means less points of failure.

That looks extremely complicated and a lot of disassemby, not to mention a lot of money in misc small parts.

Anybody know what the hose in question is called?

[Ryann]

Next you are going to say that the one sided thrust bearing was a great idea and that the timing components are perfect.

The 180˚ thrust bearing is indeed retarded.

However there is nothing wrong with the original timing components so long as the tensioner piston is updated to the newer version in a timely fashion. :D

[AndrewBird]

That looks extremely complicated and a lot of disassemby, not to mention a lot of money in misc small parts.

Anybody know what the hose in question is called?

The thing is, if one of the hoses is cracked, more then likely ALL of them will be as they wear at the same rate. The price of all new hoses FAR exceeds the price of a few fittings and a few feet of standard hose.

It looks like the hose you are point at is here:

http://www.realoem.com/bmw/showparts.do?model=AF93&mospid=47305&btnr=13_0307&hg=13&fg=15

#15 I think, but it is hard to tell from just the picture. You will need to pull it out and verify.

[absolutdog]

realoem.com will be your bmw's best friend....

Do the "mess under the intake mod" I've had it on 2 different m42's both with silicone hose and never had any vacuum leak issues(not that hard (remove TB and upper intake) and check your injector while you're in there and replace the little bits of HP fuel line that are hidden in there))

m42club.com will have more m42 specific info for you too