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Re: '88 730i : Wipers with Life of their own =/ (archive)
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Posted by Jim 91 750il on May 14, 2001 at 12:52:14:

In Reply to: '88 730i : Wipers with Life of their own =/ posted by E32 '88 730i on May 13, 2001 at 14:58:15:

I have had the same problem, they seem to work fine on the high speed but at lower speeds they do odd things like stop at random places or not work at all. I am looking into it and will post if i find a fix.


Yes, the wipers fail then they come back on some time later.
I tried to test this in a controlled environment, with mechanics and friends there ...

... the wipers worked fine. We had the wipers running for over an hour on a dry (and later a wet) screen. Tried intermittent wipe and fast wipe (normal wipe won't operate on a non-moving E32 - they go onto intermittant). All fine. A few days later they failed again.

It seems to be a random length of time later and the wipers just fail then come back on some time later. Is it that the relay is getting too hot? I tried to run the car fora while with the rear relay box cover removed. But there is nothing from the wiper switch at all. Tried the leads to the motor, tried the relay under the rear seat, even tried swearing at them ...


Any ideas for a fix or suggestions for further testing even ?




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