Steering noise when turning at very low speed

[jhf]

I have a 2012 M37X that has a light knocking noise when I am manuvering at low speed (for instance parking) when I turn the wheels. The sound comes from the engine compartment and stops as soon as I stop turning. The dealer has not found any mechanical problem and contacted the Infiniti tech line. They recommended increasing the variable valve timing by 50 RPM and using Nissan Ester engine oil.

They say when turning the steering wheels at a stop stop drops the engine idle slightly due to increased load. This seems to have fixed the noise but with the increased idle speed the car will move whenever I take my foot of the gas. I

This is my third Infiniti and I never had this problem wtih the previous two.

[Towncivilian]

Is the power steering fluid level within the proper range? How many miles do you have on your M37X?

[jhf]

I assume the service tech checked everything. They had the car two days. I don't know when it started but the car had about 10k when we first noticed it. My wife was directing me from outside the car when we first heard it.