Intermittent Wiper Setting 91 Avant

[Steve Sherman]

Kneale:

Thanks for clearing up the reset switch and the mystery position.
 Sounds like it may be a bad switch or relay.  I was just curious if I
might have a variable delay relay in there now, with some odd way of
setting the delay.  I say that only because I have/can get the delay
working, sorta.

I'll experiment some more, without the reset switch and see if any
repeatable patterns show up.

Meanwhile, anyone have any recommendations for a variable delay relay
(and which one is it)?



Kneale Brownson wrote:

> At 09:52 PM 05/19/2003 -0600, Steve Sherman wrote:
>
>> Well I have almost got the intermittent setting on the wipers figured
>> out.  But seeing as we have several days of wet weather in our forecast,
>> I thought I would see if anyone on the list can give me the straight
>> scoop on how it really works.
>>
>> The Audi owners manual claims the inter function is fixed at a 5 sec
>> delay.  This is not true, as most always if I just turn the wipers on
>> from the off position, they run in low speed, eg no delay. Also the
>> wiper switch arm has a reset switch and a mystery position which is down
>> from the off position; both not mentioned in the manual.
>>
>> It seems that if turn the wipers to low, then hold the reset switch and
>> move the arm to the below off, mystery position for x secs, then move
>> the arm to the intermittent position; the wipers will be set to an x sec
>> interval.  This is pretty repeatable, and it may just be my missing a
>> step on the times that it fails.  Odd thing is that the interval is not
>> saved, and needs to set again after you go to the off position.
>>
>> Is this how the intermittent is supposed to work?  Seems awful awkward
>> do do this little number each time you want intermittent. Especially in
>> mist conditions, where you run the wipers for a while, turn them off,
>> then run them again.
>
>
> The "reset" switch is for resetting your miles-per-gallon, average
> speed and hours-per-trip displays on the instrument panel.  Should be
> no connection with the wiper function.  The "mystery" position you
> describe should cause a one-time swipe by the wipers.  Sounds like
> either the relay that's supposed to make intermittent swiping is fried
> or there's something wrong with the switch.  The first position up
> from "off" should cause the intermittent swiping.  If you need to
> replace the relay, buy one of those that allows you to have adjustable
> intermittent swiping.
>