I have numerous problems with ventilation in ford focus. Unfortunately it
seems that all this is normal. First it always blows warm air especially in
foot direction. Then cabin heat exchanger case is always so hot that you
can't put your fingers on it. After numerous visits to the ford dealership
they convinced me that all this is normal.
So it is normal to have heat dissipater in the car during summer when it is
30 C outside then it is normal that it is heating all the time and finally
because of all this or something else windows are fogging immensely in these
rainy days... If you have ac then it seems that air conditioning de facto
cools down the stove (heat dissipater) and then you get cold air???? What
kind of engineering is this?
So my question: Is ventilation system in Focus II any better. Otherwise
focus is nice car but probably I would never again buy another one... Is
there in Focus II still simple but faulty system that hot engine water pass
through the cabin heat exchanger without any water valve all the time and
making the car usles in mediteraneean climates because you have stove in
front of you without air conditioning or with ac turned off.
Well there is an option: maybe I have faulty car but why then official
service can't resolve the whole problem? Actually one of the answers was a
lot of people complains about heating in focus without air conditioning but
that is factory construction of heater and you can't do anything about it.
Last idea was to make modification on ford focus heating system and to put
electromagnetic valve on water circle (tube) from the engine to the heat
exchanger in the cabin. Would this mod in any matter influence on engine
cooling? Maybe some engineer can comment on this.
Why are you convinced by a dealer that has incorrectly repaired your
heat exchanger, and probably damaged something else, that this is
normal? Why are you still trusting an incompetent dealer?
The problems that you have previously written about are not normal.
If you haven't got A/C than the coldest air temperature that you are
ever going to get will be equal to that of the outside air temperature.
Air over the heat exchanger is controlled by cable operated flaps. Do
you get any difference in temperature with the heater controls turned to
'cold' and turned to 'hot'.
There is also a servo motor controlling flaps for air recalculation If
this is not working then perhaps you are always getting the internal air
being recalculated i.e. no outside air.
The early focus does suffer from fogging in extremely wet conditions and
on later models the ventilation was improved.
Are you sure that the cabin/pollen filter cover is correctly fitted? It
is common for dealers to incorrectly fit this cover and water gets into
the ventilation system. The cover is on the passenger side of your
windscreen and forms part of the bottom windscreen seal.
Furthermore, if fitted, and if the filter is blocked (with pollen, dust,
leaves etc.) it will reduce the fresh air flow into the cabin leading to
inefficient demising. In cheaper models the filter may not have been
fitted during manufacture.
The A/C removes moisture from the incoming air stream.
In mid winter the A/C being selected (automatically) to remove moisture
doesn't mean that you don't get hot air. It would be very poor
engineering if you couldn't heat the interior of the car in cold
Yes, that is the good bet.
It is not part of the routine 'service'. If the monkeys that are
employed by your local dealership cannot find the fault by plugging in
the OBD diagnostic reader than they will conclude that there is no fault
and try and convince you that this is true.
Search the news archives at <http://groups.google.com/ and you may
find you are possibly the only one complaining, in many years, about
the Focus heating working when switched off. Hardly a common problem.
Thanks Alan for the reply I have some scientific :-) follow up. This
afternoon I took digital thermometer in to the car. Outside temperature was
18 C. Temperature on the foot ventilation openings was 33-35 C when vent was
on 1 and air temp on cold.
Tomorrow would go to another dealer. Anyone have idea what is causing this?
It seems that they have to remove the whole instrument panel to service this
is that true?
Regarding some ventilation modification recall about fogging somebody
mentioned on early ford focus is it posible to do it on ford expense on car
from year 2000 or not? Or maybe they already improved that on year 2000
I'm not sure where in the world you are located, but if your local dealer
refuses to fix an obvious fault that he has caused it seems unlikely that
he will help you with a modification on a six-year old car.
For your information, the modification consists of replacing the resistor
pack that controls the ventilation fan speeds. This makes the fan run
slightly faster on the lower speed settings. There are also modifications
made to the air exit in the region of the rear bumper. I believe others
(Michael?) have posted here to the effect that it doesn't make much of an
The TSB number for this is 024/1999, and it is dated 04/2000, so your car
may or may not be affected.
Indeed, in addition I didn't got it on fords expense. I bought
the parts and mounted them on my own!
Yep. I put the modifications in place, iirc 15 Euro parts and
about 20-30 minutes work with a little experience. You don't need
to remove the rear bumper to exchange.
It helps slightly, the front window fogs still up pretty fast in
heavy rain, before all windows fogged up...
The real problem is the faulty design of the pollen filter
enclosure. I have remove it lately to check and have to admit, it
is more or less luck if this (joke) construction should be
Especially if you are in an area where it can rain in ten minutes
more then in other place in a complete year...
Lately the fan belt cracked up on the highway due to extreme
heavy rain and I had to turn of front window heating as voltage
dropped down below 12V. But as I had already turned on A/C it
wasn't much of a problem regarding fogged up front window...
"Seit dem 10.11.1999 (Baucode XM) werden in der Produktion
geaenderte Abdeckungen - Zwangsentlueftung und seit dem
06.12.1999 (Baucode XP) ein geaenderter Widerstand - Geblaesemotor
However dates are regarding European Focus, dunno how it affects
some Focus build in the USA?
Thank you people for all your answers I know I was borring with this problem
but today we have conclusion :-)
Today I went to another dealer (It is fifth visit to the official ford
dealership) and he takes a look.
He measures air temperature of 34 degrees Celsius at ventilation exit on
He said that maybe something is wrong but most likely it is everything ok
car because on another car vents he measured also around 30C. He said that
all this is probably because of design where heater is in the cabin. And
that he don't have anything to fix.
On my way home after 1 hour drive I measured air temperature of 39.5 degrees
Celsius on ventilation exits. This must be really joke of design. For those
who meassure temperature in F 39,5 C is about 104 F
Only possible conclusion is that cold, fresh air in ford focus has
temperature of 39.5 C / 104 F. :-)
Anyone more suggestions?
Regarding another ford focus joke construction of pollen filter.... It is
sunny day today...So ... I was happy... no problems at all with fogging
LOL...Seems like. Don't care that much, as I already tested this
out on my Focus some weeks ago to see if my Focus would support
the theory and there was just a difference of about 1-3C between
my outside thermometer (sensor behind front bumper) and a small
LCD thermometer with the sensor plugged into the center vents.
Which might just be measure faults or simply the different
position. In any case nothing significant which would support the
OP theory at all.
Thanks Michael anyway I gave up... ford dealers I wisited are useles...Are
there any ford customer satisfaction center or anything where I can send any
feedback or simmilar service before I sell the car? Speaking for europe,
I'm currently situated in Croatia.
Well going five times to different official ford dealers and allways hearing
it is normal/ or simmilar junk is just enough for me. If you have another
bright idea to go to another ford dealer for the sixth time plese keep your
wise idea for yourself....
The heat exchanger has been part of the engine cooling system on Fords right
back to the 1960's. If you bypass it, your "cabin" might be cooler; your
engine won't be!
I'm afraid I'm going to have to shout:
TAKE YOUR CAR SOMEWHERE ELSE AND GET IT FIXED. IT IS BROKEN. NO DETECTABLE
HEAT SHOULD COME IN TO THE CABIN WHEN THE CONTROLS ARE SET TO COLD.
There, now I feel better :-)
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