[s-cars] Coolant loss / Use

[Stott Hare]

I believe that the screw fitting is in the hose to allow you to bleed air
from the heater core/lines, as it is a near high spot in that portion of the
system.

-Stott
95 S6A - leaking more coolant after the reservoir replacement than before =P

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Robert Rossato
Sent: Wednesday, January 30, 2008 9:34 PM
To: 'Kevin Barnett'; 's-car-list'
Subject: Re: [s-cars] Coolant loss / Use

I've been having a similar leak over many months, but since the inlet
nipple on the overflow tank was cracked, I figured that was it.  When I
replaced the overflow tank the leak didn't stop.  

One of the good things about using the G12 pink coolant is that it
leaves an obvious crusty sign of leaks.  When I looked under the cowling
cover I noticed that the heater valve and the funky looking hose between
the heater valve and the heater core were covered in pink crusty stuff.
So, I would check there to see if yours are leaking.  They are out of
sight out of mind, so it's not an obvious place to look for leaks.

BTW, that funky hose (looks like it has a fitting screwed into it) is
extremely expensive.  I thought it had some kind of an orifice built
into it, but when I got the replacement I noticed that there ain't
nuttin' inside.  Seems like it's just a screw fitting to provide access
for testing, or something.  So if yours is leaking replace it with a
standard straight hose (or clean up and seal the fitting).

Bob

> -----Original Message-----
> From: s-car-list-bounces at audifans.com 
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Kevin Barnett
> Sent: Wednesday, January 30, 2008 11:09 AM
> To: s-car-list
> Subject: [s-cars] Coolant loss / Use
> 
> 
> HI folks:
> 
> I am beginning to be concerned about coolant loss from
> my urS4.
> 
> Car has 186k miles on orig motor / turbo / trans.
> 
> Replaced Overflow bottle about 3 or 4 months back due
> to leaking.  Seems that overflow bottle is a
> consumable as I seem to replace mine about every 2
> years.
> 
> I seem to loose about 3/4 of overflow bottle capacity
> (about 1/3d gallon) of coolant mix every 3 to 4
> months.
> 
> There is tell-tale weeping at upper thermostat neck
> and at rear of cylinder head.
> 
> Replaced clamps / hoses / cleaned fittings to no
> avail.
> 
> My local mechanic seems to think this is common for
> urS cars to weep coolant as his S6 and several
> customer S6's also loose coolant.
> 
> The boards collective experiance is?
> 
> Thanks,
> Kevin
> 
> 
>       
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