Zenner Diode Kit 443 298 008

Bernie Benz b.benz at charter.net
Tue Jul 20 12:00:20 EDT 2004


I've never noticed that Bentley shows a suppression diode located on the
clutch coil.  I'm sure that my original clutch coil does not have it and it
is not necessary if the suppression diode in the clutch relay is good.  Audi
must have added this suppression at the coil because of the high failure
rate of the diode in the relay.  Forget the coil diode and check the one in
the relay, replacing if it is open or shorted, BTDT.  A $0.25 Radio Shack



> From: Brice2004 at webtv.net (Brice Warnick)
> Date: Tue, 20 Jul 2004 03:39:37 -0500
> To: 200q20v at audifans.com
> Subject: Zenner Diode Kit 443 298 008
> The 88 10P17C compressor I have does not the Zenner diode kit installed,
> 443 298 008. It was an SB on 11-90.
> I can take the diode off of the 200 compressor.
> I figured I would put the 88 compressor on and then send the 200 out to
> be rebuilt. I can get this done in Dallas for $125.00 from a former
> product manager for Four Seasons who says that that the quality of the
> Four Seasons rebuilds in shoddy.  A lot of shops wont even put on
> rebuilts anymore because of the poor work. Four Seasons practically
> controls the whole market under many different brand names.
> Anyway, my question is about the diode kit.
> The dealer looked it up for me and they showed only 2 kits in the whole
> world and they were in Germany. The dealers cost was $113.42. This is
> just for the diode and wire and does not include the relay(443 919 578H)
> which I dont need.
> Has anyone found another way besides buying this kit? It shows a pic of
> it in the Bentley at 87.35 Can you get the diode by buying a rebuilt
> clutch or just the magnetic coil with the diode attached?
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