MTFS

[Bernie Benz]

Much more likely the corrosion is of the aluminum water manifold  
interface. Just clean the mating parts and seal with Si caulk. The  
MFTS must be torqued tightly to make good electrical contact to ground.

Bernie


On Aug 7, 2008, at 6:30 AM, michael wrote:

> Each of the MFTS I have received has signs of experiencing a coolant
> leak.  I took two apart and the electronics is fine.  The contacts on
> the connector had coolant corrosion but this cleaned up easily with
> Contac-Renu.  My guess is that the copper washer fails after some
> time and a very small leak occurs (2 reservoir inches per year).
> Does anyone have a source for compression copper washers like these?
> Must be a generic metric part.
>
> (The electronics inside the MFTS contains an active analog chip.
> Simple resistance checks at the connector are not likely to be
> conclusive.)
> - Michael
>
> On Jul 20, 2008, at 2:00 PM, 200q20v-request at audifans.com wrote:
>
>> Date: Sun, 20 Jul 2008 11:07:56 -0400
>> From: "Ben Swann" <benswann at verizon.net>
>> Subject: MTFS - Multi Function Temp Sensor Testing
>> To: <quattro at audifans.com>,	<200q20v at audifans.com>
>> Cc: 'Ben Swann' <benswann at verizon.net>
>> Message-ID: <031001c8ea7a$64181a30$0201a8c0 at swansong>
>> Content-Type: text/plain;	charset="iso-8859-1"
>>
>>
>> I'm not finding information on how to test the Multi-Function Temp
>> Sendor in Bentley
>> Manual for 5000 or 200 series.  Anyone have some information on
>> testing these out?
>> Relevant cars include '86 on 5000 turbo, 200 and '91 200 turbo
>> quattro among others.
>>
>> Ben
>
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