Wipers when you wash the screen
 

Are the wipers supposed to work automatically when you wash the screen?

If so what triggers this? Is it the sensor for the automatic wipers get some water on it or is there a relay that comes into action when the washer pump is activated?

The reason I ask I have noticed that the wipers don't always go when I wash the screen and sometimes I have to repeatedly press the wash button for the wipers to go. Do I need to just reposition a washer jet to get some water on the sensor or do I have a faulty relay?

Everything else works as it should and the wipers work automatically when ever the screen gets wet normally.

The first thing to check Steve is that you are pressing the washer button for a good few seconds. I have found that a quick burst isn’t always sufficient to trigger the programmed wipe.

Simon

It's controlled by the BCU, and programmed wash wipe is a T4 option.

If it is set to no programmed wash wipe, then pulling the stalk operates the washers without operating the wipers, if set this way, you don't get the wipers dragging over a dry screen, so it does have it's advantages ;)

Brian :D

I was also told that it did not automatically wipe each time it was washed but about 1 in 4.

macafee2

Not sure about that, but I seem to recall that if you have headlamp washers they trigger about every 4th wash of the screen.

I've never experienced any need for a long or a short pull of the stalk. The wipers always start almost immediately. But having an option to spray the screen without the wipers operating seems a bit futile, if not potentially dangerous.

TC

Mine seems to need a pull of a couple of seconds to operate the wipers, I quite like it. Often at this time of year the washers are frozen solid, this saves smearing the salt and dirt across the screen unnecessarily

yea got those. never see the point of wash without wipe
maybe I was getting mixed up, thanks

macafee2

However supplying power to frozen down wipers might not make the wiper motor too happy.---:eek:

Mine is every 5 wipe if head lights are on :D