9-5 Heating problem survey

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Dave - 21 Nov 2004 11:47 GMT

I've got a brand new 9-5 Aero, and I have a problem with the heating, but my
dealer seems to think everything is working normally.
When I have the heating on '27' the air that comes out is warm, but it is
not hot.
I get plenty of hot air when I set it to "HI", but that defeats the point of
ACC!
Every other car I have driven with climate control which is set on approx 23
sends out air to keep me warm. (if I was to have set it to the max it got
too hot)

What I need to know from other 9-5 owners (lets say 2003/2004 cars only)
is:-

Assuming the engine has warmed up and it is 5 degrees C outside.
1. What temp to you have the ACC set to keep you warm?
2. If you set the ACC to 27, does the car become VERY hot & stuffy?

Maybe the problem I have described is normal for a 9-5, but I somewhat doubt
it.

Thanks for your help

Dave.

Reply to this Message

Gabriel Shaw - 21 Nov 2004 21:34 GMT

20 C setting works fine on 2004 Saab 9.5 Arc

> I've got a brand new 9-5 Aero, and I have a problem with the heating, but
> my dealer seems to think everything is working normally.
[quoted text clipped - 19 lines]
>
> Dave.

Reply to this Message

Dave - 23 Nov 2004 00:33 GMT

> 20 C setting works fine on 2004 Saab 9.5 Arc

Thanks for the reply, can anyone else advise what their ACC setting is as
per my original post please?

Reply to this Message

Ronny - 26 Nov 2004 14:10 GMT

>> 20 C setting works fine on 2004 Saab 9.5 Arc
>
> Thanks for the reply, can anyone else advise what their ACC setting is as
> per my original post please?

Well I have an Audi with climate and noticed that if you have it on auto 18c
it much colder than having it on manual 18c, god knows why it should still
regulate the temp.
My dad bought a 9-5 Aero from ebay last night :) and the temp seems fine at
18c on both the dual climate settings, its a 99 2.3t.

On a side note anyone know the rough price of a new fog light lense front
for the above car, I think there quite expensive

Ronny

Reply to this Message

Gary Fritz - 29 Nov 2004 16:39 GMT

> Thanks for the reply, can anyone else advise what their ACC
> setting is as per my original post please?

In my 2002 9-5 Aero, I normally run my ACC at 70-74 F (21-23 C). It is
often the case that I want warmer air, and turning it up all the way to
82F (28C) results in lukewarm air, only very slightly warmer than it
was at 70F. Increasing it one notch to HI results in a HUGE increase
in air temp. In other words there is no way to get temps anywhere
between "lukewarm" and "HI hot." If I want warmer air, I turn it to HI
and turn the fan down.

The ACC on my 1988 9000T worked exactly the same way. Apparently Saab
has never figured this out.

Gary

Reply to this Message

Goran Larsson - 29 Nov 2004 17:01 GMT

> In my 2002 9-5 Aero, I normally run my ACC at 70-74 F (21-23 C).

I set the ACC at 18?C to 20?C. If I set it any higher I have to
roll down the windows.

> It is
> often the case that I want warmer air, and turning it up all the way to
> 82F (28C) results in lukewarm air, only very slightly warmer than it
> was at 70F.

Why do you need 28?C hot air in the car? Driving naked? :-)

> The ACC on my 1988 9000T worked exactly the same way. Apparently Saab
> has never figured this out.

Perhaps Saab assumes people have winter clothes on when driving in
winter temperatures?

Anyhow, there are many parameters that can be changed in the ACC using
a TECH2 diagnostics computer. I changed some parameters to move the
temperature scale down, i.e. have the ACC produce colder air at a set
temperature than the factory settings. Heat craving drivers should be
able to adjust their ACC in the other direction.

Signature

G?ran Larsson http://www.mitt-eget.com/saab/

Reply to this Message

Dave - 29 Nov 2004 18:37 GMT

Thanks for that - My dealer is totally foxed about the problem, but the car
is going in next week for some adjustments. What they're adjusting, I don't
know!
If they can change the parameters as you have suggested, I think that should
fix it.

>> In my 2002 9-5 Aero, I normally run my ACC at 70-74 F (21-23 C).
>
[quoted text clipped - 19 lines]
> temperature than the factory settings. Heat craving drivers should be
> able to adjust their ACC in the other direction.

Reply to this Message

Gary Fritz - 30 Nov 2004 00:22 GMT

> I set the ACC at 18?C to 20?C. If I set it any higher I have to
> roll down the windows.

That's nice for you. Obviously you are more warm-blooded than I am.

>> often the case that I want warmer air, and turning it up all the
>> way to 82F (28C) results in lukewarm air, only very slightly
>> warmer than it was at 70F.
>
> Why do you need 28?C hot air in the car? Driving naked? :-)

It's not delivering 28C air as far as I can tell. As I said, there is
almost no change in delivered air temp between ACC settings of 70F and
82F. If I'm not warm enough at 70F, then the 82F setting is no better.
Then one more notch to HI and suddenly the delivered air temp jumps
something like 20-30degF or more.

> Perhaps Saab assumes people have winter clothes on when driving in
> winter temperatures?

Ha ha. I don't care if I'm wearing twelve sets of thermal underwear,
that has no impact on the delivered air temp. And the delivered air
temp does not increase substantially as you increase the ACC temp.
Which means you have poor control of the cabin temperature, and it
takes a long time to warm the car.

As it happens, I have very poor circulation to my hands. Wearing
gloves doesn't help, because (unless it's *really* cold outside) gloves
and other forms of insulation only work to hold body heat IN. If my
hands are icy cold, gloves only serve to keep OUT the heat in the car.

So I want warm air coming out of the vents to warm my hands. I hold
my hands (usually one at a time :-) in front of the vent to thaw them
out. At 82F the air is still uncomfortably cool. One click higher at
HI and it almost burns my hands. I don't consider that to be very good
control.

My 9000 worked exactly the same way. I prefer a simple manual-control
heating system so I can make it do what *I* want.

Gary

Reply to this Message