Wipers are always on at same speed

[aus-auser-bei]

Hello,
I am a new owner of a champagne edition 78, and have wiper problems. After some time they stopped working, just made a buzzing sound. I handed it over to a mechanic that specializes only on aircooled-VW, so he should know what he's doing. He exchanged the windscreen wiper and motor for another one, and great, it worked for a few hours.

Then suddenly when I start the engine, the windscreen wipers are on. It doesn't matter if I change to any of the positions, it is impossible to turn them off and they are always on the same speed.
The mechanic says I need a new wiper switch, which is not easy to come by.

So I wanted to double check with all experienced and friendly people here. Is it really the switch, or do you have any other ideas? I have tried to search but haven't seen anyone with this problem.

[Al Capulco]

If your bus has a intermittent wiper relay, it could be bad and would cause that problem.

[Wasted youth]

Unplug the wiper relay and see if the problem changes.

[aus-auser-bei]

Thank you so much gentlemen.
I found a intermittent washer relay and when I unplugged it, the wipers didn't start automatically. But they worked at step 2. And now I've ordered a new relay.

Wonder if the relay was the problem all along, and my wiper-motor never was broken. I guess you need to learn to work on your own car instead of going to mecanics, that's what John Muir suggest in his book.

Thanks a lot for the help! I'm so grateful.