Do I missing something ?
 

In the belt cover right upper side exist like a breather or connection.
I don´t take out this the first time, then I don´t know if I forget something.
Looks like a breather or a place to conncet a hose ?

Let me know
regards

Photo

Whenever I take a car apart, I use a digital camera on it first. Sometimes the car remains apart for a while so I can forget where things go or how they were routed. The camera makes it easy. I learned to take this precaution from repairing clocks. Didn't have digital cameras then so I used a 35mm just in case.

Mine is and has been plugged for years. Before I changed to an MAF, there was a hose there.

Thanks for your soon answer Mr. Coppari

A hose ?, connected to which place.

What is the reason for this tip (breath) ?

I'm having a hard time placing where we are on the engine (picture quality) but if you're refering to the belt cover, then the hose connects to the underside of the air filter housing. It can be a PITA to fit in there while everything is in tact. I recommend removing the air box to properly attach it. And use good clamps so you NEVER have to mess with it again.
As to why it's there, your bet is as good as mine: cooling belts?

97xray

thanks

I already found the hose, yes, goes in the air filter cover

About the reason I belive that is one of two:

1.- Air for the belts
2.- air for the engine

Do somebody have the answer ?

regards

The hose goes to the air box.

But, porsche stopped doing that, later cars are actually plugged because it isn't needed or something.

There is an actually part that you can get from Porsche to plug it.