2004 Jetta TDI and the snow screen location

>The snow screen is under the air box, and in the
>intake pipe. Not all cars have them, apparently even
>from the same years. In my cars the 2003 has one while
>the 2004 does not. You can also remove them if you
>want to not bother with it but VW does then offer a
>special air filter that has a bottom filtration to
>help keep some of that big stuff out of the filter.
>Some people say it matters, some people say that
>neither the screen or special filter make any
>difference at all.
>
>good video to show it.
>http://pics.tdiclub.com/video/cincitdi/snowscreen.html
>
>
>
>--- Willy Wonka <feverwilly@yahoo.com> wrote:
>
> > Where is the snow screen and how do you clean it out
> >
> >
> > Sent from my iPhone
> >
> > On Aug 13, 2007, at 2:57 PM, Tim Rhodes
> > <timrhodes@yahoo.com> wrote:
> >
> > I know I'm a little late to the party (been out of
> > the
> > country for a bit) but wanted to add my two cents.
> >
> > It sounds like your N75 valve might have failed/been
> > replaced. It controls the vanes in the turbo, and
> > can
> > lead to power issues. This has hoses that connect to
> > the turbo, which depending on miles could have been
> > replaced. But typically this issue is found by your
> > car going into limp mode, which resets itself each
> > time you start the car. The same for vacuum leaks
> > from bad hoses for the most part is how I understand
> > it. But no matter what, no actual bioD is going into
> > your turbo. So unless there is some strange exhaust
> > it is creating, these issues are not related to the
> > bioD use. Clogged fuel filter is, but not turbo
> > related issues.
> >
> > If the problems have gone away, great. If they
> > return, I would suggest checking out the MAF. I had
> > some very weird stuff happening including loss of
> > power like that, but finally was able to change out
> > the MAF. It was night and day for my car. Also a
> > number of the TDIs came with devices called
> > "snowscreens" which can lead to reduced power as
> > they
> > get filled and restrict airflow into the engine.
> >
> > I am no mechanic but am happy to help folks if I
> > have
> > the time. My contribution to the co-op has been
> > laughable up to this point so maybe I can help out
> > in
> > this way. In the least I can show folks how to do
> > the
> > easy stuff like oil changes, fuel filter changes,
> > snowscreen cleanings, checking/replacing glowplugs,
> > air/cabin filter changes etc.
> >
> > -Tim
> >
> > --- nose1@aol.com wrote:
> >
> > > Hi!
> > > I have a 2004 Jetta TDI and I'm having problems, I
> > > think because of using
> > > biodiesel. I replaced the fuel filter after the
> > > first month (this Spring). Just
> > > recently I started losing power when I accelerate
> > on
> > > hills. I took my car in
> > > and they replaced some hoses and a valve
> > (something
> > > related to the turbo). They
> > > advised me not to use biodiesel. I would still
> > like
> > > to though (it's one of the
> > > reasons why I bought the car). Has anybody had an
> > > experience like this? Can
> > > you give me advice?
> > > THANKS!
> > > Margaret
> > >