[s-cars] Multi Function Temp Sensor or Thermostat?

Thu Dec 16 11:54:42 EST 2004

Drain cock?  You found a drain cock somewhere?  On an Audi!? Where?

At 11:47 AM 12/16/2004 -0500, Tom Green wrote:

>Only a masochist would claim this is an easy fix, since "you could drain the
>radiator", means you could also remove the engine pan so you can get to the
>drain cock and place a drain pan as any good American would.  Probably a
>good time to flush and refill with that "cheap" antifreeze also since you will
>most likely lose most of the coolant anyway or you will realize how old it 
>is. ;-)
>
>Did I mention that it's cold outside.  Hopefully you have a nice inside 
>place to do all this.
>It is no coincidence that the thermostat failure gets to the "fix it now" 
>stage just as the polar
>air gets firmly established in Canada.
>
>The timing belt r&r procedure on urs4.com has a photo of the thermostat 
>installation,
>however everything in the way normally has been removed and you can't see 
>much of
>the o-ring underneath.
>The 10 mm bolts on the plastic housing require 7 ft-lbs torque.
>
>Tom '95 S6
>
>Previously written:
>>Date: Wed, 15 Dec 2004 20:59:08 -0700
>>From: Brian Powell <powellb at gmail.com>
>>Subject: Re: [s-cars] Multi Function Temp Sensor or Thermostat?
>>To: Rich Beebe <rich at beebecomm.com>
>>Cc: manuelsanchez at starpower.net, s-car-list at audifans.com
>>Message-ID: <910ae2660412151959b1cb590 at mail.gmail.com>
>>Content-Type: text/plain; charset=US-ASCII
>>
>>Well, the first mark is 60C, then, the next labelled mark is straight
>>up at 130C I think (I am going from memory). In between is an unmarked
>>tick which is normal operating temp, 100C. You should be at or above
>>that mark after a few minutes of driving. Under hard driving in 100+F
>>ambient, it can get up towards vertical (though, I've personally never
>>seen one get vertical).
>>
>>If you oil temps are not getting much above 60C, that is not a good
>>thing. It sounds like your thermostat is stuck open. It is cheap and
>>easy to fix. You'll need a new thermostat(should come with a seal) and
>>some coolant. I find it easier to remove the intake boot, then, use
>>some "wobbly" extensions with a 10mm socket to remove the two screws
>>in the thermostat housing. Pull it back--coolant will pour out
>>everywhere (you could drain the radiator first if you like). Get
>>something to pry out the old thermostat (they stick in there nicely).
>>Put the new thermostat in the same orientation as the old one (brass
>>strip should be vertical), put the thermostat housing back on (IIRC,
>>12 ft-lbs torque--anyone?) and refill the coolant. I like to make sure
>>the coolant is properly filled, so, I remove the bleeder valve from
>>behind the firewall (under the plastic cover) and fill the expansion
>>tank. It will slowly cylce into the whole system with gravity (it
>>takes about 10-20 minutes) and once it starts coming out of the
>>bleeder valve, close up the valve, top off the expansion tank to the
>>mark, and you are done.
>>
>>
>>On Wed, 15 Dec 2004 22:40:16 -0500, Rich Beebe <rich at beebecomm.com> wrote:
>>>brian et al,
>>>
>>>i noticed my water temps staying very low today (around the 2nd thin
>>>mark), until i stopped at a red light (about 8 miles from the house),
>>>at which point it rose to roughly to the first thick mark, iirc. what
>>>you mentioned below about oil temps is what has me thinking, though.
>>>my oil temp gauge never moves from the far left of the gauge. i
>>>noticed this upon buying the car and was told that they all read
>>>low and it's normal. 2 questions - where 'should' my oil gauge 'read'
>>>and could i have a similar thermostat problem? tia.
>>>
>>>rich <-- feeling bad for asking so many questions, but i'm new to audis.
>>>
>>>From: Brian Powell <powellb at gmail.com>
>>>
>>>>The easiest way to check is to see what your oil temps are doing. If
>>>>the thermostat is stuck open, it will be hard for the oil to get to
>>>>operating temp. If your oil is at or past the thick mark and the
>>>>coolant temp reads quite low, then it is the MFTS. If the oil temp
>>>>isn't getting up to operating temp, then it is definitely your
>>>>thermostat.
>>>>
>>>>The thermostat is pretty easy to do on this car. Just makes a mess... :)
>>>
>>
>>
>>--
>>Cheers,
>>Brian
>>
>>
>>------------------------------
>>
>>Message: 8
>>Date: Wed, 15 Dec 2004 23:10:04 -0500
>>From: Rich Beebe <rich at beebecomm.com>
>>Subject: Re: [s-cars] Multi Function Temp Sensor or Thermostat?
>>To: Brian Powell <powellb at gmail.com>
>>Cc: manuelsanchez at starpower.net, s-car-list at audifans.com
>>Message-ID: <BDE674CC.65511%rich at beebecomm.com>
>>Content-Type: text/plain; charset=US-ASCII
>>
>>well, since my oil temp gauge never seems to move at all, i'd
>>say a new t-stat is in order. i'm glad this post came up, as i
>>was never comfortable with the idea that the gauge should read
>>(normally) where it was. thanks very much for the insight.
>>
>>rich
>>
>>>From: Brian Powell <powellb at gmail.com>
>>>Reply-To: Brian Powell <powellb at gmail.com>
>>>Date: Wed, 15 Dec 2004 20:59:08 -0700
>>>To: Rich Beebe <rich at beebecomm.com>
>>>Cc: manuelsanchez at starpower.net, s-car-list at audifans.com
>>>Subject: Re: [s-cars] Multi Function Temp Sensor or Thermostat?
>>>
>>>Well, the first mark is 60C, then, the next labelled mark is straight
>>>up at 130C I think (I am going from memory). In between is an unmarked
>>>tick which is normal operating temp, 100C. You should be at or above
>>>that mark after a few minutes of driving. Under hard driving in 100+F
>>>ambient, it can get up towards vertical (though, I've personally never
>>>seen one get vertical).
>>>
>>>If you oil temps are not getting much above 60C, that is not a good
>>>thing. It sounds like your thermostat is stuck open. It is cheap and
>>>easy to fix. You'll need a new thermostat(should come with a seal) and
>>>some coolant. I find it easier to remove the intake boot, then, use
>>>some "wobbly" extensions with a 10mm socket to remove the two screws
>>>in the thermostat housing. Pull it back--coolant will pour out
>>>everywhere (you could drain the radiator first if you like). Get
>>>something to pry out the old thermostat (they stick in there nicely).
>>>Put the new thermostat in the same orientation as the old one (brass
>>>strip should be vertical), put the thermostat housing back on (IIRC,
>>>12 ft-lbs torque--anyone?) and refill the coolant. I like to make sure
>>>the coolant is properly filled, so, I remove the bleeder valve from
>>>behind the firewall (under the plastic cover) and fill the expansion
>>>tank. It will slowly cylce into the whole system with gravity (it
>>>takes about 10-20 minutes) and once it starts coming out of the
>>>bleeder valve, close up the valve, top off the expansion tank to the
>>>mark, and you are done.
>>>
>>>
>>>On Wed, 15 Dec 2004 22:40:16 -0500, Rich Beebe <rich at beebecomm.com> wrote:
>>>>brian et al,
>>>>
>>>>i noticed my water temps staying very low today (around the 2nd thin
>>>>mark), until i stopped at a red light (about 8 miles from the house),
>>>>at which point it rose to roughly to the first thick mark, iirc. what
>>>>you mentioned below about oil temps is what has me thinking, though.
>>>>my oil temp gauge never moves from the far left of the gauge. i
>>>>noticed this upon buying the car and was told that they all read
>>>>low and it's normal. 2 questions - where 'should' my oil gauge 'read'
>>>>and could i have a similar thermostat problem? tia.
>>>>
>>>>rich <-- feeling bad for asking so many questions, but i'm new to audis.
>>>>
>>>>From: Brian Powell <powellb at gmail.com>
>>>>
>>>>>The easiest way to check is to see what your oil temps are doing. If
>>>>>the thermostat is stuck open, it will be hard for the oil to get to
>>>>>operating temp. If your oil is at or past the thick mark and the
>>>>>coolant temp reads quite low, then it is the MFTS. If the oil temp
>>>>>isn't getting up to operating temp, then it is definitely your
>>>>>thermostat.
>>>>>
>>>>>The thermostat is pretty easy to do on this car. Just makes a mess... :)
>>>>
>>>
>>>
>>>--
>>>Cheers,
>>>Brian
>>
>>
>>
>>------------------------------
>>
>>_______________________________________________
>>S-CAR-List mailing list
>>S-CAR-List at audifans.com
>>http://www.audifans.com/mailman/listinfo/s-car-list
>>
>>
>>End of S-CAR-List Digest, Vol 14, Issue 72
>>******************************************
>
>_______________________________________________
>S-CAR-List mailing list
>S-CAR-List at audifans.com
>http://www.audifans.com/mailman/listinfo/s-car-list

Bob
Random Bushism: "I've changed my style somewhat, as you know. I'm less I 
pontificate less, although it may be hard to tell it from this show. And 
I'm more interacting with people." George W. Bush, Meet The Press, Feb. 13, 
2000
_____
Robert Myers
Fayetteville
'95 urS6 - Cashmere Grey
_____