Does the rear demister on a Classic - specifically on my STi 5 - automatically turn off after it's demisted the rear screen, via a sensor or something? Or does it just turn off after a certain set amount of time? I assumed it does, givien the "non-latching" style switch(?)

But... I haven't actually experienced it turning off at all (orange light never seems to extinguish) - i.e. it either takes a really long time to do so... Or it just doesn't!

 

Think it's on a timer as my '00 seems to turn off after around 10mins whether the screen is completely clear or not.

 

It is timed via a relay

 

I'll have to time it.

But I've a feeling mine doesn't turn off (if that's actually possible?).

Cheers peeps.

 

Update...

It DOES turn off! Takes c.13mins. on mine.

Er.... just thought I'd share that.

 

AFAIK, the one on my 98 car, (UK sourced) doesn't, I have to do it manually.

 

I take it, therefore, that it's a "latching" type switch on that car, then?

 

mine doesnt turn off, well, the light stays on the dash constant if i have turned the switch

 

"turned"? Don't you mean push?

How long did you leave it? Like I said, my one turned off after 13mins (not 10).

 

Mine doesn't turn off by itself, MY00 UK, latching switch.

 

joey, try leaving it for at least c.20mins next time (make a note of the start time).

I, like you, THOUGHT mine didn't work..... But it actually DOES! 13mins.

 

No, I definetly have. My windows at one point were always misted up, due to leak in the boot. So I used to have it on constantly on most journeys. Unless it turns itself off after it has sensed the window its clear, which sounds a bit complicated for an old car.

 

Yeah, it's allegedly just on a set timer. Which, as you say, would be appropriate contemporary technology.

In that case then joey...... bugger!