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PostPosted: Fri Sep 22, 2017 6:42 pm 
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Joined: Wed Jul 02, 2008 6:09 pm
Posts: 10502
Location: Sandwich
Car Model: 2005 9-5 Aero Wagon
Just had the air con re-gassed as stopped working this week. 180 gms out and 800 gms back so low i guess. Colder now than before but does anyone have the air temp from the vents when blowing fully cold please?
No fault codes stored but will stick Tech 2 on this weekend but just trying to eleiminate any blend door issues that might be letter warm air through?
TIA

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9-5 Aero Estate 2005 in grey
9000 Aero 1995 in black
1994 GM 900
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Last edited by Mike9000Aero on Fri Sep 22, 2017 7:14 pm, edited 1 time in total.

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 Post subject: Re: 2005 Saab 9-5
PostPosted: Fri Sep 22, 2017 6:48 pm 
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Joined: Sun Jan 27, 2013 10:20 pm
Posts: 1770
Car Model: 2005, 9-5 Aero, Noob 3
Something in the back of my mind tells me it should be 4 degrees at the vent?


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PostPosted: Fri Sep 22, 2017 8:56 pm 
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Joined: Sun Jan 26, 2014 9:41 am
Posts: 1938
Location: Royal Tunbridge Wells
Car Model: '03 9-5 2.3 Vector Auto Estate
WIS says performance should be 'below 7 deg C'. That's on max fan speed and 'LO' setting.

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PostPosted: Fri Sep 22, 2017 9:15 pm 
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Joined: Sun Aug 15, 2004 9:39 am
Posts: 38029
Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
My aircon has been checked a few times in my 2007 9-5 and I've not seen below 11˚C. It should be around 7˚C but it seems to work. Maybe there was some GM cost cutting that made it to the car but not the WIS?

Here's a couple of pictures from a year or two ago. Different vents at the same time. Nothing has changed since...

Attachment:
IMG_0271.jpg
IMG_0271.jpg [ 29.9 KiB | Viewed 240 times ]


Attachment:
IMG_0272.jpg
IMG_0272.jpg [ 24.62 KiB | Viewed 240 times ]

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PostPosted: Sat Sep 23, 2017 6:03 am 
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Joined: Wed Jul 02, 2008 6:09 pm
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Location: Sandwich
Car Model: 2005 9-5 Aero Wagon
Thanks all - mine was reading 13 degrees on the machine they used but definitely colder than when it was working before. Will is that your gizmo for reading the temp - I guess i might find something on Maplins that will do the job for me - I assume a normal digital thermometer won't cut it?

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9-5 Aero Estate 2005 in grey
9000 Aero 1995 in black
1994 GM 900
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PostPosted: Sat Sep 23, 2017 6:17 am 
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Joined: Sun Aug 15, 2004 9:39 am
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Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
That's an old probe thermometer that I got from Maplins ages ago. Something like this, but it was a lot cheaper, and slightly different, when I got mine.

https://www.maplin.co.uk/p/ht-wide-rang ... eter-l55an

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PostPosted: Sat Sep 23, 2017 6:33 am 
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Joined: Wed Jul 02, 2008 6:09 pm
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Location: Sandwich
Car Model: 2005 9-5 Aero Wagon
Many thanks for the link Will and looks like you have put a few more miles on the Wagon again. :mrgreen:

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9-5 Aero Estate 2005 in grey
9000 Aero 1995 in black
1994 GM 900
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PostPosted: Sat Sep 23, 2017 8:31 pm 
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Joined: Sat Jan 18, 2014 3:23 pm
Posts: 1062
Location: Sussex
Car Model: '04 9-5 Aero est., '97 9K Aero
A couple of months ago i wasn't too impresed with mine in hot weather so had it regassed assuming it had leaked. It didn't make significant difference, and I've since discovered that I can drop the output temp noticeably by running the calibration sequence.

Generally mine pumps coldest from the centre vents of course, the left outer being a couple of degrees warmer (length of duct, I assume), but irritatingly the drivers outer vent always seems a couple of degrees warmer than that i.e. about 4 deg warmer than the centres. After a calibration that differential still exists.

I don't remember the 9-3 (og) requiring periodic calibrating and nor does the 9000.

Actual numbers depend on the ambient temp of course, the system seems capable of dropping the temp by about 13 deg. When I had the temp probes in the car the lowest I remember seeing was 7 from the centres. Bear in mind I was using those £3 matchbox sized units from eBay, with the probe on a wire.

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PostPosted: Sat Sep 23, 2017 10:21 pm 
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Joined: Sun Aug 15, 2004 9:39 am
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Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
I find that I need to recalibrate from time to time. AUTO & OFF on the 1998-2005 cars. AUTO & Recirc on the later cars.

Doesn't always work on first attempt. May need two or three tries to get it to recognise that both buttons are pressed.

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PostPosted: Sun Sep 24, 2017 11:38 am 
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Joined: Thu Feb 14, 2008 10:47 am
Posts: 5325
Location: Queenborough, Kent
Car Model: 9k, 9-5 Aero & a Jaaag
couldn't find anything in WIS giving specific temperatures, other than it saying a blocked air (pollen) filter will affect the cooling performance. There is a diagnostic procedure which covers the possibility that the starship enterprise valve has failed.

EDIT: found something in Body -> Heating and ventilation, A/C -> Adjustment/Replacement tab:

Image

note that it says the engine speed needs to be 1500-2000 RPM. The A/C on my current Aero estate is really good - if you do get a temperature probe of some sort Mike, feel free to being it round and we can do a comparison ...

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PostPosted: Sun Sep 24, 2017 10:40 pm 
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Joined: Sat Jan 18, 2014 3:23 pm
Posts: 1062
Location: Sussex
Car Model: '04 9-5 Aero est., '97 9K Aero
Thanks sounds, that's interesting. Mines not doing too badly then. An air con specialist once told me 4 deg was normal. I see Saab specify centre vents for the test, acknowledging that the outers will be warmer.

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PostPosted: Mon Sep 25, 2017 10:33 am 
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Joined: Thu Feb 14, 2008 10:47 am
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Location: Queenborough, Kent
Car Model: 9k, 9-5 Aero & a Jaaag
I was told by an aircon specialist that they always test at the centre vents - because the ducts to the outer vents heat up when the car is parked in sunshine, which seems logical ...

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'04 9-5 Aero manual, stage 3
'08 Jaguar XFR (quick enough as-is)


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