Power steering is difficult & making a whining sound. on 2000 Mercedes-Benz ML55 AMG

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Steering wheel is hard to turn.
(1) Answer
I think there is a recall on the steering wheel. You might want to look into it so it can get repair with no cost to you.