Hello, i have one questions:

1. I am concerned because i believe that i have a bad turbo seal bc of the fact that i seem to be burning oil through my turbo.. Is there a special way to replace the turbo seal...

 

Just replace the turbo. IMO >

 

wow replace the turbo??? K03 or should i just upgrade since i'll be taking it out... (K04)

 

Well here is the thing are you 100% its the seals? How much oil are you using/burning?
If it ends up being the seals then all I ever see is the option to replace/rebuild.
Check out this link and there are others . Main thing to do is really check to see and pinpoint the leak.
https://www.audiforums.com/forum/s-car-model-line-13/turbo-oil-leak-likely-84674/

 

i noticed the oil in the little tube in between the Blow off Valve and the N75 valve.. there is a segment of a tube with two clamps.. When i removed that i noticed there was a little oil in there... I never smell anything, i just noticed that is a loss of oil and no obvious leak...

 

how much oil was in there? if you notice the leak on the dipstick i doubt there is enough oil in that little tube to account for it, unless the line was completely full. the distance between the high and low mark on the dipstick is 1 quart of oil. that vacuum line is open to the intake air, which has crankcase gasses recirculated in it so oil can build up in it over time.

 

Normal since crank case pressure is released into the turbo inlet hose in a form of oil vapor, this ends up collecting at the lowest point just after the turbo.

To see if it is leaking from the seals on the turbo it needs to be looked at and you need to check the manifold for any signs of oil and pull the spark plugs to see if there is any sign of oil on them. If there are no signs of oil on the plugs, cylinders or manifold but oil at the back of the turbo then the seals might be bad.