Kneale Brownson knealeski at
Thu Aug 7 06:40:28 PDT 2008

Got a measurement on the washer?

michael <mdearing at> 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 
- Michael

On Jul 20, 2008, at 2:00 PM, 200q20v-request at wrote:

> Date: Sun, 20 Jul 2008 11:07:56 -0400
> From: "Ben Swann" 
> Subject: MTFS - Multi Function Temp Sensor Testing
> To: , <200q20v at>
> Cc: 'Ben Swann' 
> 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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