NSR_s30, from my perspective it was not hydraulic. It ran fine for the first couple of months and now its acting up, I also forgot to mention a couple of things that could be related to the problem.
When the car first starts up, it idles kind of loudly for a couple of seconds then the sound lowers and it sounds just fine, kind of like a loud vibration, i dont think anything is loose because it drives fine at high speeds.
Maybe once my girlfriend gets back from visiting her family I can post a video of the car starting up...Everything would be a lot easier if I was home around my dad's nice garage
But unfortunately im in a apartment with not much room to do any work.