S40: - poor demisting

duggers1954 · Dec 10th, 2012, 13:03

Hi
read a few threads about poor windscreen clearing, I have changed the cabin filter, also ran the the system without, but still very poor to clear. I have noticed that when it is on windscreen without the filter there is a lot of power from the fan but it is directed down under the glove box where the filter is and not going to the windscreen !!!. If the linkage is not opening could this be mechanical or electrical ?.

Any suggestions.

m1tch1987 · Dec 10th, 2012, 20:36

It might be the flapper in the fan system, or it might be the selector switch on the blink, does the fan change from say face to feet? Or does it just stay in 1 position?

duggers1954 · Dec 11th, 2012, 12:12

face, feet all ok. just seems very weak on screen, it has AC climate control if that makes any difference.

52 plate s40 1.9d sport

cheers

morrismen · Dec 11th, 2012, 14:06

If you have Climate Control, then when you put on auto, demist and turn up the heat control to red max in that order from left to right, then the AC should come on automatically also. The AC helps to clear the windscreen faster.

duggers1954 · Dec 11th, 2012, 19:29

Yeah done that, but there's still not much power directed to the screen. Don't even think it would move a piece of paper if it were there!!!!.

Batfink · Dec 11th, 2012, 22:08

Currently having the same issue. If I come across anything/get it sorted I will pop back and update.

Recognized · Dec 12th, 2012, 14:13

It is just too cold

Relax, it takes a while to demist it. Try to use these ruber things with the handle to do it manually 100500 times faster...

duggers1954 · Dec 12th, 2012, 15:46

yeah i agree about it been too cold to be messing about, also dark when you come in from work.
cheers

Dec 10th, 2012, 13:03	#1
duggers1954 Junior Member Last Online: Apr 25th, 2018 14:56 Join Date: Feb 2009 Location: sunderland	poor demisting Hi read a few threads about poor windscreen clearing, I have changed the cabin filter, also ran the the system without, but still very poor to clear. I have noticed that when it is on windscreen without the filter there is a lot of power from the fan but it is directed down under the glove box where the filter is and not going to the windscreen !!!. If the linkage is not opening could this be mechanical or electrical ?. Any suggestions.

Dec 10th, 2012, 20:36	#2
m1tch1987 Premier Member Last Online: Dec 29th, 2013 12:08 Join Date: Apr 2011 Location: Berkhamsted	It might be the flapper in the fan system, or it might be the selector switch on the blink, does the fan change from say face to feet? Or does it just stay in 1 position? __________________ 2003 Volvo V40 1.9D Sport - MPG below

Dec 12th, 2012, 14:13	#7
Recognized Senior Member Last Online: Jun 4th, 2019 16:53 Join Date: Dec 2011 Location: Bristol	It is just too cold Relax, it takes a while to demist it. Try to use these ruber things with the handle to do it manually 100500 times faster... __________________

Dec 11th, 2012, 12:12	#3
duggers1954 Junior Member Last Online: Apr 25th, 2018 14:56 Join Date: Feb 2009 Location: sunderland	face, feet all ok. just seems very weak on screen, it has AC climate control if that makes any difference. 52 plate s40 1.9d sport cheers

Dec 11th, 2012, 14:06	#4
morrismen Senior Member Last Online: May 3rd, 2023 13:02 Join Date: Dec 2003 Location: London	If you have Climate Control, then when you put on auto, demist and turn up the heat control to red max in that order from left to right, then the AC should come on automatically also. The AC helps to clear the windscreen faster.

Dec 11th, 2012, 19:29	#5
duggers1954 Junior Member Last Online: Apr 25th, 2018 14:56 Join Date: Feb 2009 Location: sunderland	Yeah done that, but there's still not much power directed to the screen. Don't even think it would move a piece of paper if it were there!!!!.

Dec 11th, 2012, 22:08	#6
Batfink Member Last Online: Nov 26th, 2017 15:38 Join Date: Sep 2012 Location: Harrogate	Currently having the same issue. If I come across anything/get it sorted I will pop back and update.

Dec 12th, 2012, 15:46	#8
duggers1954 Junior Member Last Online: Apr 25th, 2018 14:56 Join Date: Feb 2009 Location: sunderland	yeah i agree about it been too cold to be messing about, also dark when you come in from work. cheers

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