Re: How do you change the Coolant??

[Daniel Jones <captaudi@ma.ultranet.com>]

	Well good start,  The engine drain plug is in the most inaccessable spot
on the engine.  It is on the driver side at the back of the engine in a
recess facing straight up.  The area it is in looks like a tube cast into
the edge of the oil pan.  The plug is an 8mm allen and to get it out you
need a allen sockety almost 12" long with a ball style end to allow for
misalignment.  At the dealer this is a special tool we use for changing the
knock sensors on the V6,  we use it for everything and anything.  There is
an o-ring seal on the plug and should be replaced at the same time.  Good
Luck,  I do this all the time and if you don't know how it can be rather
time consuming.  I also recomend after draining and flushing that you
refill with synthetic anti-freeze that is both eviromentally friendly and
does a better job at controlling corrosion.

Daniel Jones   86 4kcsq just rolled 260k 03:05 PM 8/28/98 -0400, you wrote:
>To replace the coolant:
>-Drain the coolant using the engine drain plug and the drain plug at the
>lower left section of the radiator.  Not sure where the one on the
>engine is, but you'll probably see it.  I think it's near the middle on
>the front of the engine.
>-Remove the expansion tank cap
>-Open the heater hose bleeder screw.  The bleeder screw is located in a
>large water pipe on the right hand side next to the temp sensor.
>
>-Pour coolant mixture into the expansion tank
>-Watch bleeder screws and tighten as soon as coolant runs out
>-Fill the expansion tank until the level reaches the upper edge
>-Put on expansion tank cap
>-Start the engine and let it run at idle until the radiator fan comes on
>at least once
>-Raise the engine speed to 2000 RPM for about 30 seconds
>-Turn OFF the ignition
>-Check the coolant level in the tank, top off if necessary.
>
>HTH
>-- 
>Elliott
>
>"Why keep up with the Joneses when you can BLOW them to KINGDOM
>COME?!!!"
>	--WarGames commercial
>
>
>
>
>jack wrote:
>> 
>> Howdy,  how do you change the coolant on the 1994 Audi 100S w/ the V-6
>> motor?
>> 
>> Does it at all resemble the process with the older 5000S where you have
>> to disconnect the coolant hoses at the bottom of the radiator?
>> 
>> What about bleeding?
>> 
>> Thanks for any help.
>> 
>> Jack
>
>