Hey in my car whenever I steering more than 50% (hope this makes sense) it moans when I turn with the foot on the gas.

There was a fix that changes the O Ring gasket in the inlet tube for power steering. I have replaced it with the new orange one but I'm still having the 'problem' Now I'm not sure if its a problem or I'm being too picky on the car. Let me know if you guys have the same moan, if you do, then I guess its a TL 'feature' Thanks for the help

 

I replaced the O-ring and still have some slight moaning on hard turns at low speeds, but it seems to be normal operation. And I know that my power steering fluid needs to be replaced. My sister's C350 and mom's GLK both still produce much louder moans.

 

nobody else??

 

take the cap off the resevoir and check for bubbles. If you still have bubbles showing up you are still introducing air in the lines somewhere in the system. Does it have enough fluid? How old is the fluid? You may need to replace it. I still hear a slight moan...but I swear its wayyy more noticeable in the winter time when its pretty cold outside and hasnt warmed up yet.