2003 saab exhaust smoking bad

It appears to be a known issue.
Blue smoke is oil.
White smoke is water.
Black smoke is rich mixture.

Blue smoke is probably from the turbo bearings.

https://www.google.com/search?q=saab+9-5+P0303

Vacuum Hoses

https://www.google.com/search?q=2011+Saab+9-5+Turbo+4.+vacuum+hose+diagram

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Did you check coolant level???

could be oil that has built up in the exhaust, check the engine oil and see if its up to the correct level top up if required and keep a check on it, it may also be useing to much fuel if its diesel as excess fuel burnt shows up as white smoke

check the oil level. Probably not enough oil in the sump because the oil seals in the turbo have failed and the sump oil is going out the exhaust system

Sounds to me like they did a bad head job. No pun intended. lol, White smoke indicates moisture in exhaust but black smoke indicates a oil leak. I would take it back and have them check the job they did. If the car is over heating then the head gaskets are pretty much blown.

IS the smoking extremly heavy ? Extreme heavy smoke where you cant see behind the car would indicate turbo. If this is the case no engine damage should have occured. The turbo on these cars are oil and water cooled, The heavy smoke indicates a worn seal in the turbocharger is leaking oil directly into the exhaust system and burning there. Catylitic and oxygen sensor damage may occur but engine damage is unlikely.

Depending on the overall condition of the engine, it could have worn or frozen rings, worn valve guides or the turbo you installed is worn out. These are driven by exhaust pressure and if their bearings are worn, you may be getting a mix of compressed air from the turbo and oil that is seeping past the compressor's internal seals.

Sounds like you might have blown a ring on a piston. and the black smoke is oil being burned...find out what the engine code is....but a blown ring usually requires an engine rebuild to fix. Hope this helps.....sorry about the bad news

One way to check for a blown head gasket, is to simply smell the coolant reservoir. Pop the cap, and see if it smells like raw gas. Every headgasket, I've diagnosed has had this smell, even if the oil is not contaminated. Another way is to hook up a coolant pressure tester, and run the vehicle for 15-20 mins or so. If the head gasket is blown, the pressure will exceed 15 psi. sometimes as high as 25 psi. If there is oil in the coolant overflow tank, the head is cracked, about 90% of the time.
I'm working on a 03 Saab 95 2.3l t. This vehicle smokes on initial start up, then the smoke disapates, and the vehicle is fine. Another mechanic diagnosed it as bad valve seals. I disconnected the pcv system, and the vehicle no longer smokes. If the valve seals have gone bad, the vehicle will smoke on acceleration. Also if the turbo seals are leaking it will smoke more heavily on acceleration.

Is there black smoke coming from the exhaust?