[200q20v] Oil Temps

Dale McCormack dale at themccormacks.org
Thu Oct 18 12:41:18 EDT 2001

The 90 temp you described sounds a bit cool to me.  I've heard that we need temps slightly exceeding 100 degrees C in order to boil off moisture that condenses in the engine crankcase after cool-down.  This scenario makes sense to me and the oil cooler thermostat is designed to adjust accordingly.  Problems occur with petroleum based oil when it gets too hot (140 degrees C) and begins to break down, this break-down temperature is even higher with current synthetics.  


Message: 13
Date: Thu, 18 Oct 2001 10:32:14 -0400
To: tommy.arnberg at nokia.com
From: Peter Schulz <peschulz at cisco.com>
Cc: 200q20v <200q20v at audifans.com>
Subject: [200q20v] Re: [s-cars] Problems with Oil temp ?

At 10:47 AM 10/18/2001 +0000, you wrote:

>Hi  !
>Has anyone had problems with oil temp in 20V Audi?
>The temp meeter has index points for
>60 C    |    130C
>Normally the meeter should stay near the mark
>  |      I think this is 90 C.
>Under extreme load the temp can rise up to 130C
>If you have had problems, was it the
>Oil Filter housing thermostat
>(in ETKA spring 049 115 437
>   and thermostate piston 035 115 429  ) ??
>Or was the reason just sticking oil temp thermostat piston ?
>Something else ?
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