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Discussion Starter · #1 ·
The A/C on my 2007 9-5 is not blowing cold at all. I took the car to my local shop for a recharge, hoping that would get the cold air flowing. Mechanic just called and said the compressor is not engaging and that a recharge won't do anything. He said "it's either the compressor or the DICE module. Neither of which I can help you with".

My questions:
-How do I figure out which is the issue?
-Are either of these DIY jobs?

I'm fairly mechanically inclined. We have a few older vehicles (2001, 2005, 2007), in addition to the 2007 9-5 and I do my own brakes, rotors, oil changes, struts, shocks, alternators, starters, etc.

Thanks,
Eric
 

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That's a weird diagnosis from the shop... did he give anymore information than that? In simple terms, it's easy to force the compressor on from the relay, and then you know whether it's a control or the compressor itself. But, there are other explanations as well, so it's weird to me the problem was narrowed to one of two components but the easy last step of determining which one was skipped...
 

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I think youI have to get the car to an AC specialist who actually knows what he’s talking about. I’m with jvanabra on this one. Specialists know what the deal is he can resolve with some warranty if they fail. I‘d get it over with and take it to somebody knows what they’re doing.
 

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Agree with above. However, if he actually said "DICE" module then he's probably worked on Saabs before. Nevertheless, he's not interested in helping you. To save time with an AC specialist, provide them your owner's manual which shows the location of the AC compressor relay and associated fuses if the underhood electrical panel is illegible. Or, they can easily look it up online. Powering-up the compressor is easy by jumping two terminals - they'll know how to do it. If that works, then the issue is in one of the controls or the system has a leak and won't allow the compressor to engage due to low refrigerant.
 

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My independent farms his AC work out to a specialist. And that’s worked for me on my 2006 with 200,000 miles on it. Granted it’s imperfect, but I’d rather go in for AC work every three or four years rather than every Season. Please forgive my bluntness.
 

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My questions:

-How do I figure out which is the issue?

-Are either of these DIY jobs?
As mentioned, your "mechanic" said he can't help you...more to accurately put he doesn't want to help you.

Please don't try the DIY re-charge bottles, I made that mistake once on a Saab, it made a reasonable repair much more expensive in the long run.
 

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Discussion Starter · #8 · (Edited)
Yep, when he called me, I definitely got the feeling this was not a job he wanted to mess with. I figured he'd at least try to charge it and see if that allowed the compressor kick on. Kind of weird, this is a reputable shop and I've been a somewhat regular customer over the years.

Oh well, I'll get it to an A/C specialist and go from there.

Thanks for all of the responses!
 

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I just finished repairing similar symptoms with my 2008.

The compressor was not engaging and obviously no cold air.

The O rings on top of the compressor were leaking oil and green ac dye onto the compressor and top of the plastic splash shield.
I had my trusted shop (who specialize in euro cars, specifically Volvo & Saab) replace the O rings on the compressor lines and check the rest of the system for leaks. They also found a bunch of crap in the passenger evaporator drain, while cleaning those out. I had them replace the cabin filter while it was all apart too.
Recharged the system and its running as cold as it will ever get, since I did the CBV delete a couple years back.

Once the compressor / system is low on charge, I believe the compressor will stop coming on to protect it.
I echo the others in that you need to find a shop that specializes in AC and perhaps more specifically, European cars.

Doubtful that the DICE has anything to do with your problems and I certainly wouldn't start there.
Total bill for everything was around $750. Expensive maybe, but I don't have the time, tools, or experience to work on AC systems.
 

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Discussion Starter · #10 ·
I just finished repairing similar symptoms with my 2008.

The compressor was not engaging and obviously no cold air.

The O rings on top of the compressor were leaking oil and green ac dye onto the compressor and top of the plastic splash shield.
I had my trusted shop (who specialize in euro cars, specifically Volvo & Saab) replace the O rings on the compressor lines and check the rest of the system for leaks. They also found a bunch of crap in the passenger evaporator drain, while cleaning those out. I had them replace the cabin filter while it was all apart too.
Recharged the system and its running as cold as it will ever get, since I did the CBV delete a couple years back.

Once the compressor / system is low on charge, I believe the compressor will stop coming on to protect it.
I echo the others in that you need to find a shop that specializes in AC and perhaps more specifically, European cars.

Doubtful that the DICE has anything to do with your problems and I certainly wouldn't start there.
Total bill for everything was around $750. Expensive maybe, but I don't have the time, tools, or experience to work on AC systems.
Great info, thanks! I was planning to spend up to $1000 or so. Much more than that and my kid would just have to sweat. :)
 

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I dont know how he can "tell" if the compressor is coming on because it doesn't have a clutch, it has a swashplate, which is internal. I ran into the same thing with my 07 wagon. No cold ac. I looked at the compressor from underneath and it was green all over (my guess is that it was overcharged by previous owner and the relief valves lifted). I took it to a local shop to have it diagnosed, thinking that I would just do the work myself on the install but they could diagnose the issue. He charged it up and said "oh yeah, you have a leak-and it needs a complete overhaul..Condensor, dryer, compressor..$1200. I said thanks and ill think about it and left. that was 2 years ago. My AC still blows "cool" and havent needed a recharge yet.

A few variables here. You need to scan you ACC with a tech 2 and see if there is any codes. Unfortunately for our years you cant do the auto test feature like you can with pre-2006 cars.
Obviously o-rings, wiring, and pressures can and should be checked. The compressor could be low, or it could be weak. The dryer could be plugged as well with stop leak additives over time.
The cooling fan needs to be checked. Does it turn on at the required time? External and Internal temp sensors....etc.

I also did a CBV delete on mine (it turned out that one of the hydraulic compressed fittings was leaking around the CBV hoses-but I already had the delete hoses on hand). On a 75 degree day my ac is really cold if turned down all the way and left on auto. On a 90 degree day it blows cool. Enough to keep the edge off but it'll never fog up the windows or freeze me out. I'll keep it as is until I pull the engine for a rebuild and I'll end up replacing everything anyway.
 

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The A/C on my 2007 9-5 is not blowing cold at all. I took the car to my local shop for a recharge, hoping that would get the cold air flowing. Mechanic just called and said the compressor is not engaging and that a recharge won't do anything. He said "it's either the compressor or the DICE module. Neither of which I can help you with".

My questions:
-How do I figure out which is the issue?
-Are either of these DIY jobs?

I'm fairly mechanically inclined. We have a few older vehicles (2001, 2005, 2007), in addition to the 2007 9-5 and I do my own brakes, rotors, oil changes, struts, shocks, alternators, starters, etc.

Thanks,
Eric
If you are close to Orlando Florida, give Swede Central a call. They specialize in Saab maintenance.
 

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I’ve never watched the guy do his thing start to finish. It’s always been my understanding that he focuses on locating leaks of refrigerant and then replacing O-rings and recharging the system to the correct pressures.
All that for a hundred and twenty bucks?

Also, if he replaces O-rings etc shouldn't it just be fixed?
 
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