AAN What is this?

[Chris Talley]

That is the one Jay. I removed all the coolant, intake/ vacumn hoses to have
room to work. I think mine was leaking form the banjo fitting, but it was a
matter of time before the hose failed. That seems like an odd sized hose to
me.On the banjo side I measured .45"/12mm, The hard line end seemed smaller,
the hose on the hard line end was to deteriorated to determine much.

I mocked one up with 1/2' which seemed liked a good fit on the banjo size
but was loose on the hard line side, I clamped it down and it did not leak,
but I am not happy with that solution.

I am going to order the OEM piece, I do not want to go in there again.

BTW I would replace the crush washer and clean up the banjo as well


On Sun, Sep 5, 2010 at 3:37 PM, John Larson <john at westcoastgarage.net>wrote:

>   On 11:59 AM, Jay M wrote:
> > Question #1
> > Talk about perfect timing Chris. Today, I just removed this leaking PITA
> hose from my 1995 S6. This hose connects the hard water line routed around
> timing cover and connects to the top of the turbo. It runs directly
> underneath the water collector and you need the hands of a midget to remove
> this hose working from the top of the engine. Is this the same hose you are
> talking about Chris? My hose has that exact same part number written on it
> and it appears to be the original hose but who knows, I just bought the
> car????. I just measured the old hose and it measures exactly 6 3/8" long
> with an inside diameter of 3/8". My concern is a guy (Dave?) who I was
> talking to at S-Fest who also has an Audi repair shop near Coventry Motors
> said he has replaced several of these hoses recently and the correct
> replacement hose should have an inside diameter of 8mm which is 5/16". This
> hose is in such a tight spot it would be a lot easier installing the larger
> 3/8" hose instead of the 8mm as suggested. Maybe this guy at S-fest was
> mistaken??? Does anybody know for sure what is the correct inside diameter
> for this hose?
> > Question #2
> > After noticing the small leak in the hose mentioned above, I think most
> of my cooling system's rubber hoses are original and should be replaced. My
> car has 151,000 miles on it. I am going to be replacing all of them this
> fall. The previous owner has replaced the recommended blue coolant with what
> looks to be the standard Prestone yellow/green coolant. I have heard several
> different arguments regarding going back with the G001 100 non phosphate
> coolant or the pink G12 coolant. After I properly drain and flush my entire
> cooling system with distilled water would it be better for me to refill with
> fresh yellow Prestone antifreeze or would it be OK and advantageous to use
> the Pentosin G001 100?
> > Question #3
> > I have a brand new Wahler 80 degree thermostat. Previous owner installed
> a standard 87 degree thermostat about 30,000 miles ago. I live in the
> Northeast U.S. Is it recommended to go with a cooler thermostat or am I just
> asking for trouble? I have never experienced any overheating with the
> current thermostat. Thanks.
> >> Date: Sat, 4 Sep 2010 18:48:18 -0400
> >> From: kentmclean at comcast.net
> >> To: quattro at audifans.com
> >> Subject: Re: AAN What is this?
> >>
> >> On 09/04/2010 06:20 PM, Chris Talley wrote:
> >>> The hose is 034 121 471 APxo 10015 but I
> >>> cannot find any correlation with that number.
> >>> I cannot find any reference in the Bentley either.
> >> The F.A. says it has been replaced by part number "N 020 262 1".
> >> If you're searching, I understand you should look for "N 0202621"
> >> with 2 spaces after the N. It gives you the same description and
> >> remarks:
> >>
> >> Description: hose in coils of 5m.
> >> Remarks: + 16.0 MwSt
> >>
> >> --
> >> Kent McLean
> >> 1990 200 Avant with V8
> >> 1999 A4 Avant, V6 Tiptronic
> >> gone - 1990 V8 w/5-speed and other mods
> >> gone - 1991 200 TQA #3, with mods
> >> gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad Puppy"
> >>
> >> _______________________________________________
> >> quattro mailing list
> >> http://www.audifans.com/mailman/listinfo/quattro
> >> http://www.audifans.com/kb/List_information
> >
> Phosphate free green coolant has been pretty much gone from the
> marketplace for 2 or 3 years.  VW has dropped the blue coolant, as well
> as the common orange/pink, and dealers are now ordering the latest
> be-all-end-all version.  However, they are being rationed, or so I've
> been told by my local parts weenie, and it may still be a little hard to
> come by.  I would use it, given a choice.  As for the thermostat, you
> want to run the stock version, whatever that might be, because the
> entire engine management system is built around engine running at the
> correct temperature.  A cooler thermostat can, and usually does, kill
> your fuel mileage, besides making the car think it's still warming up.
> The hose:  There are NO hoses on a VAG product that are 3/8" ID.
> They're 3mm, 3.5mm, 5mm, 7 or 7.5mm, 9mm, 11mm, 12 mm, 14mm, and
> assorted other, larger, sizes.  There may even be a 4mm, I can't
> remember.  Using a hose that's larger than spec means you have to
> over-crimp it with the hose clamps, leading to deterioration, cuts, and
> leaks.  Get the right stuff.  With a few exceptions, you want hose rated
> for the fluid it carries.  Water hose for water, oil hose for oil and
> vent tubing, and fuel hose for fuel.  I've found you can pretty safely
> run modern FI hose in place of the smaller ID coolant hoses if water
> hose isn't readily available.
>
> John
>
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