[V6-12v] Re: Strange occurence 1994 100 CSQ (loss of coolant)

[Andrew Lundy]

It's most likely the waterpump!!  Read the message at the bottom of the link
untitled "overheating".

http://eep.burdell.org/dev/12v/repairs/tbelt.php

HTH!!
---
Andrew Lundy
fast928 at prodigy.net
90 80q
99 A6q


----- Original Message -----
From: "David Torrey" <RNE905 at Maine.Edu>
To: "Quattro List" <Quattro at audifans.com>
Cc: "V6 List" <V6-12V at audifans.com>
Sent: Tuesday, April 09, 2002 7:40 AM
Subject: [V6-12v] Re: Strange occurence 1994 100 CSQ (loss of coolant)


> I had a similar experience last August during a trip to Boston with my '93
> 100 CSQ Wagon .  It was a hot day and the low coolant light came on along
> with a corresponding rise in the engine temperature.  Made it to my
> destination in Waltham,Ma. where I popped the hood and found the reservoir
> full.  After allowing the engine to cool,  I removed the reservoir cap.
At
> this point the coolant level dropped dramatically.  I refilled the
reservoir
> and discovered a leak under the car.  There was no coolant visible
anywhere
> in the engine compartment.  I drove home to Maine the next day with no
> problems.  Here is my interpretation.  The thermostat housing on this
engine
> has an o-ring which seals the thermostat to the engine block.  I think the
> leak was occurring here due to temperature increase and a fatigued seal.
> Could possibly have been leaking around the water pump seal as well.  I am
> not sure.
>
> Two weeks later I replaced timing belt, tensioners, serpentine belt, water
> pump and thermostat.  I found dry coolant residue in this area.  Couldn't
> tell exactly where it was coming from.  I have had no problems since then.
>
> I am somewhat puzzled why your leak occurred on a cool day.  Don't know if
> this applies to your situation or not but thought I would contribute my
> experience.
>
> Best regards
>
> David Torrey
>
>
>
>
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