[s-cars] Leaky hoses

[Manuel Sanchez]

Aaron,

If your leak is indeed the short 6-1/2" long x approx 3/8 ID rubber  
hose that connects the waterpipe in Dave's ETKA diagram (No 25) to  
the banjo fitting for the water manifold (in the ETKA diagram this is  
Item No 27, and that diagram depiction is an abstraction, it is  
really a bit longer, see the photo in Dave's accompanying link), the  
one I just pulled off my car due to a tear is:

034-121-471-AP

My hose wasn't 3 years old and had 10,000 miles on it, and it failed  
(at the track but amazingly lasted thru ad track session and let go a  
few moments after I had parked at the paddock and was letting it idle  
to cool down).

So I would double check the part number when you order it. This hose  
was a perfect fit in length and diameter, but it failed way too soon  
in my opinion. Who knows maybe it got a nick in it during  
installation that weakened it. I also noticed that my hose had  
seemingly swelled in its 10,000 mile short life.

Good Luck.

Manny

95.5 ur S6 Avant (mostly RS2'd)





Date: Sun, 26 Apr 2009 09:38:41 -0400
From: Doug Landaeta <dlandaeta at gmail.com>
Subject: Re: [s-cars] Leaky hoses
To: AaronT <atay101 at gmail.com>
Cc: Scarlist <s-car-list at audifans.com>
Message-ID: <711CAE8F-3919-4345-9CA0-5E66F4A6E552 at gmail.com>
Content-Type: text/plain;	charset=us-ascii;	format=flowed;	delsp=yes

Aaron,

Btdt. Scott Mockry(sp?) has the right hose and new clamps for this. I
can dig out the old posts later today or someone will chime in with
part number.

Not too bad of a job with patience and creative dexterity. I cut the
old one off claned up the area and slowly pushed/ turned the new one
on. With right part it should see another 100k miles. Careful not to
lean on or put too much pressure on other AC/hydraulic hoses.

If the system is empty change all plastic fittings. Rear of block hose
fitting, thermostat housing, T-fitting also at rear. They are usually
brittle and will give you very slow and annoying leaks. Enjoy!

Doug

Sent from my mobile.

On Apr 26, 2009, at 3:30 AM, AaronT <atay101 at gmail.com> wrote:


> Hi Crew
> My beloved (not) has a water leak in the hard to see region under
> the intake
> manifold.  Does anybody know where I can find a cooling system
> diagram with
> pn's for this region?  I tried tightening the hose clamps but no luck.
> Perhaps we already know which hoses are prone to failure in this
> region??
> Aft of the thermostat and under the manifold.
> I have replaced a leaky coolant pump but these leaks are part of
> branch line
> coming off the thermostat.
> Thanks in advance ya hosers
> Aaron
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