Hello guys, I bought yesterday a saab 9000 2,3L 194 ps with beautiful equipment and 220tkm for 180 euro … he has received many repereatures … .. what I noticed to this day, is that the upper front engine bearing is defective, the sky hangs, and I think (I don’t know yet) that the sun roof does not close properly. well and the much discussed topic of head seal … which is defective with him … and a few questions 1.) I know many screwdrivers , a llerdings have the fear because of control chain and saab is new land for the young … is the fear justified or could an opel mechanic easily (saab tool) change the control chain ?????? 2.) the cooling water compensation tank is empty up to about 1 cm oil sludge… is that normal with a head seal harmful ???? and how do I get all “cool components clean again ???? 3.) there are different strengths in the seal ? 4.) where do I order the material best ??? look forward to training r expert advice … thank you in advance