MFTS&Aux. water pump

Ingo Rautenberg irautenberg at
Mon Sep 16 19:05:39 EDT 2002

Ouch!  I had to replace my pump as well, though I think it was at another
juncture.  Anyhow, I recall just using a crescent wrench to remove the Multi
Malfunction Sensor.


----- Original Message -----
From: <BriceW at>
To: <200q20v at>
Sent: Monday, September 16, 2002 3:43 PM
Subject: MFTS&Aux. water pump

> I got my VDO MFTS from Rod at TPC a few days ago.
> Found that it took a 29 MM socket. I rented a 30 MM from Auto Zone for
> free that will work, as I couldn't get a 29 MM.
> Seem like they jump from 27 MM and then 30 MM is the next size.
> So I went to remove the auxiliary water pump to get access to the MFTS.
> And when I did I broke of the plastic inlet on it.
> I called Rod this morning and said I have bad news about installing the
> MFTS. Rod then told me that I needed a new auxiliary water pump without
> me even telling him first.
> He said that he has thought about issuing a warning with every MFTS he
> sells as this happens all the time.
> For $100.00 a new 034 965 561C is on its way from TPC. The new Bosch
> part no. is G3050-13422 which supersedes the AA12V 0392 020 054 no. that
> is on the old part.
> I am also now replacing the upper radiator hose as when I moved it I
> found a tear or rupture at the top of the ride side hose. It was torn
> where the clamp fits around it. An Audi mechanic told me once that it is
> common for people to overtighten hoses and cause problems later on. This
> looks like the original hose on this 103,000 91 200 20V. TPC didn't
> stock it and said it was dealer only. Blau had it in stock for $107.30.
> The part no. is 447 121 101S.
> I am also replacing the hose from the aux. water pump, 034 121 081 for
> $11.99 from Blau.
> So much for an easy MFTS replacement.
> Damn!
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