Zoegod

Hello . I own a 09 c63 204 . I got a problem with my car . I m new on this forum and thats my first time owning a amg . The issue is my steering wheel doesn’t stiff while speeding Like on 150 km\h its not that stiff and really winding around so i showed my to some of the dealers around . Few peoples say its abs failure or some might say steering pump . I need a guide up on it

Abebundance

Do you have any warning lights? Also, have you checked for any leaks regarding the power steering pump? It could be worn tie rods. I'd say something to do with the steering/suspension for sure.

Zoegod

There is no leaks . Is it anything with the abs ?

Abebundance

Are you having any warning lights on the dash? did you scan the car for any codes?

Zoegod

Yes I scanned it for like some errors for parking lights and sunroof calibration.

roadtalontsi

depending on the year there is whats called an sps valve. for speed sensitive steering. The valve when faulty or broken usually makes everything stiff. On older cars its on the rack, 12+ newer ones its on the pump. It only gives lots of power assist at around 5mph or less. that's what I'd be looking into.