C55 Power Steering Issue

Hi all, Purchased a 2005 C55 a few months back. It had a pulsation in the steering wheel unlike anything I had ever felt in any other car. Here are the steps taken since: 1. Full power steering fluid flush w/ lubricant (didn't fix issue) 2. Replaced pump reservoir (didn't fix issue) 3. Replaced pump (new) and rack (Bosch reman unit). (Issue was much improved but the pulsation still happens. Most noticeable when holding the wheel steady at 11 or 1 o'clock through a gentle curve). I read at... C55 Power Steering Issue

Hi all,
Purchased a 2005 C55 a few months back. It had a pulsation in the steering wheel unlike anything I had ever felt in any other car. Here are the steps taken since:

1. Full power steering fluid flush w/ lubricant (didn't fix issue)
2. Replaced pump reservoir (didn't fix issue)
3. Replaced pump (new) and rack (Bosch reman unit). (Issue was much improved but the pulsation still happens. Most noticeable when holding the wheel steady at 11 or 1 o'clock through a gentle curve).

I read at...

C55 Power Steering Issue

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