Hi, as the topic says i have some buzzing/humming sound from the left side (driver), when idle i have most sound. But when i turn the steeringwheel it stops and comes back when i release the steeringwheel.
So i thinked it was the steeringservo fluid, it was under low so i filled it to max with CHF oil, turned the steeringwheel left/right 4times and drove 10km.
But the sound was still there, it "follows" the rpm to up to 3:rd gear, and after that i cant hear it because of the speed.
It sounds even if im in Neutral.

This is how it sounds like, its not my car/video but the sound is almost the same

 

I have read some forums and watched some vides and some of them involves the power steering pump ?

 

Yeah, I didn't watch the video, but that sounds like either the PS pump, or the pulley. Spray the **** out of everything (belts and pulleys) with WD-40, or Armor All and see what happens.