Steering wheel groaning

[E53fan16]

Guys,

So I have encountered some steering wheel groaning when locking to the right and locking to the left. On occasions I get the sound going straight after I have made a turn. I checked the power steering fluid and it's a little on the low side.

Prior months weeks leading up to this I have been hearing a rubbery type sound when turning the steering wheel.

Your thoughts, please.

[jopecasa]

Jack-up your front-end then start engine and turn steering side to side.

Please.....be VERY careful doing this.

It's also a good idea to place wheel chocks on your rear tyres.

[AV8R4AA]

I am getting a faint groan also.
Fluid level full, clean red fluid.
I have already replaced the canister.

Out of ideas.