So I have a 2001 S4, it has just over 65,000 on it. When should I think about getting the timing belt changed. I also have a awe boost gauge, It usually hits about 10psi, but I noticed it's dropped a little, plus I'm losing a little oil. I'm thinkin it could be the turbos seals, but I'm not sure if that would cause me to lose boost...This is my first turbo car, so I am kinda illireate when it come the turbos. Any info would be greatly appriciated.

Thank you,

Brandon

 

You had better HOPE it's not the turbo leaking the oil!!!!!!!!!!

Generaly it's the valve cover gaskets & cam seals that leak oil.

I'd say 90% of boost leaks are either leaking DV or the TBB.

The timing best is done at 100,000mi. They really last that long. Most peole seam to change them around 75kmi.
It's a $1000+ job.