RE: rear defrost fixed, but now another problem

["Livolsi, Stephane" <livols1@investorsgroup.com>]

Aha!! That would also explain the second set of contacts in the relay.
Thanks very much.  
Stephane Livolsi
180 Yorston St
Williams Lake, BC, V2G 3Z1
ph 250-392-2637
fax 250-392-2693

'86 5KTQ stock (if you don't know what it means, you aren't in the club)

>----------
>From: 	Kneale Brownson[SMTP:knotnook@traverse.com]
>Sent: 	November 14, 1999 7:30 PM
>To: 	Livolsi, Stephane; 'Audi Quattro List'
>Subject: 	Re: rear defrost fixed, but now another problem
>
>The rear window defrost button on all my Audis also activates the defrost
>circuit in the outside rearview mirrors, Stephane, so possibly you're
>hearing relays related to those circuits?
>
>Kneale Brownson
>
>
>At 06:35 PM 11/14/99 -0600, Livolsi, Stephane wrote:
>>It's that time of year again when a rear defroster comes in real handy
>>so I dug in today to fix mine.  I posted for help on this before and
>>created a bit of a stir over the location of the defrost button (mine is
>>in the climate control head unit)
>>
>>What was happening, was that when I pressed the button the rear defrost
>>light would come on, I could hear a faint relay click, but the elements
>>did not heat up.  Checked the grid (visually and electrically) and all
>>is OK there.  
>>
>>Here's what I found:
>>
>>First of all, the relay is not marked on any of the labels in the car.
>>I found it by pressing the defrost button on and off while I felt each
>>relay in turn.  Second of all, upon opening it up, I found it was a
>>double relay with the contact arm having 2 switches.  Thirdly, I noticed
>>that the terminal for the wire going directly to the defrost grid was
>>blackened and melted in the relay holder.  I activated the relay with
>>the cover off and found that the contact arm was being blocked by
>>something.  I monkeyed with it for a bit and something went snap and the
>>arm now moves freely up and down. Activated it again and it works well
>>on the downstroke...but, it won't release.  I press the button .. stays
>>activated, turn off the key....stays activated.  I suspect this is why
>>the terminal melted. 
>>
>>Does anyone know if this is a relay problem, or a result of current
>>coming from somewhere that it shouldn't?.  I can physically pull the
>>contacts apart and they do stay apart, until activated again.  There is
>>one very curious thing though.  A few seconds after physically pulling
>>the contacts apart, I hear  a series of three clicks ...click, click,
>>click (like 3 relay clicks)  from the engine compartment.  I did this
>>many, many times to be sure the two were related. I could not isolate
>>exactly where it comes from but it seems to be coming from the ABS
>>unit...?....?...?  Anybody have any ideas what this may be?  
>>
>>TIA
>>
>>
>>
>>Stephane Livolsi
>>180 Yorston St
>>Williams Lake, BC, V2G 3Z1
>>ph 250-392-2637
>>fax 250-392-2693
>>
>>'86 5KTQ stock (if you don't know what it means, you aren't in the club)
>
>