Ok so my cls6 has this awful squeak in front left when turning and going over bumps. Car has 92k miles on it. Now keep in mind I have already replaced front upper balljoints, front outer tie rods, and suspension. I have narrowed it down to either front lower balljoints or power steering rack could also be bad. Whats you guys thought on this?

 

Try spraying lube on various parts to pinpoint where the noise is coming from.

 

I had the exact same symptoms, turned out to be lower ball joints for me

It is anything like this?

 

Mine is not even closee to as bad as that sounds! How many miles on your car?

 

it had 118K at the time, it might of been doing it from before since I bought it with it making the noise.

Does it go away when the car sits for awhile but comes back not long after driving again?

 

Figured out the problem. It was one of my only 2 month old spc upper ball joint camber kits that was bad. Spc warrantied it out and sent me a new one.