So my car (2003 330i) has been making a whirring/ whining noise that I can hear at idle and low rpm.the noise changes in pitch relative to rpm. it sounds exactly like this for reference. The car groans when accelerating out of slow turns and growls/groans when turning wheel in park...

So today I woke up early in the morning to take my car to my mechanic to replace most of my power steering parts that made it leak and scared me to death! Overall I got an amazing price: $882 including labor! So happy I changed it because I was scared my steering would stop while I was...