I bought a 2005 9-5 Aero Wagon almost a year ago. It had 125k miles on it but was in pretty good mechanical shape. I purchased it through a dealer who had gotten it from a sheriff's sale, so I couldn't talk to the owner, which would have been nice.
I had to put some money into it upfront: standard tuneup items (spark plugs, filters, fluid changes, etc.), all the engine mounts were bad (if you notice especially rough vibrations when idling, then this is a likely cause), had to replace some subframe bushings, get a second key made.
Overall, I'd say it's been a good purchase so far. The car is fun to drive and pretty stylish. And it's seems like you can get these cars relatively cheaply nowadays, so for the money, it's probably worth it.
It's good that you're looking at an '05, since it has the final PCV update and doesn't suffer from the same oil-sludge problems that earlier models had. I think '04 and up models had this fix and owners of earlier models were told to update theirs.
Here are some tips if you go ahead and purchase:
- Use only synthetic oil, and change it every 3-5k miles (a lesson from the earlier oil sludge days). M1 is recommended, but any good synthetic is fine.
- Use only premium fuel (though some people say that mid-grade is fine).
- Don't let the fuel level drop much below 1/4 tank as this will make the fuel pump burn out faster. A well-respected Saab mechanic told me this (something about the fuel level having to cover the pump and help with heat dissipation). He said fuel pump failure is a common problem for these cars once they get 100k+ miles on them.
- It's best to use the NGK platinum plugs spec'd for the car.
- It never hurts to have a spare DI cassette because when these things go, you're done, and they often won't give you much warning.
- Make sure you have a second key. If you lose your only key, then you're screwed and have to get whole new transmitter system (which is well over $1000).
- USE A RESPECTED, EXPERIENCED SAAB MECHANIC. Go out of your way to find one. It will save you time and money (I had to learn this lesson the hard way). I found it best to ask a co-worker who has a Saab. The place he recommended is really great.
- As others have noted, there is a lot of good info in the various Saab forums. If you are DIY inclined, then I would suggest starting
here.