ACC issues on 2004 Aero - Saab 9-5 Bulletin Board - Saabnet.com
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ACC issues on 2004 Aero
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Posted by Randy Thatcher [Email] (#22) [Profile/Gallery] (more from Randy Thatcher) on Thu, 10 Dec 2009 20:21:41 Share Post by Email
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2004 9-4 Aero - 77k. CPO with 21 days of warranty left.

I bought this car about 18 months ago with 36k. I live in the San Francisco Bay Area, and drive all around the area on sales calls. In the summer I drive in 100+ degree temps, and this week is probably the coldest I've experienced in this car.

In the hot months I complain the ACC just doesn't freeze me like I think it should. The dealer worked on the system a few times in the summer, and it always seemed colder after the work, but a shortly thereafter I still felt it's not freezing me out. One time they did a dye test, replaced something, and gave me new refrigerant.

The unit doesn't throw any codes when I to the calibrate mode. The real annoyance during the hot months is that the fan would run higher (and louder, therefore more annoying) than I felt it should.

Now it's COLD out (high 20's - 30's overnight). When I got in the car this morning I set the ACC to 72 and began a 20 mile drive. It never felt toasty in the car. So I turned it to 80, still not toasty. Then went to HI and finally got heat. I let it warm up, then set it back to 72 and then got cold air out. NOT what I wanted, so I set the fan down to low.

For reference, my wife's 2006 9-3SC is hot when I want it, and cold when I want it. So I have to think something is jacked up in my system.

Any ideas?

Randy
2000 Viggen Vert - MC Yellow
2004 9-5 Aero 5spd
2006 9-3SC 2.0T 5spd

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