I didn't get rich off a Mercedes hydraulic pump and hated risking it in a landfill. I searched on ebay and amazon and came across this power steering pump. I have been driving my 2001 Mercedes C240 for 4 months now with this pump installed and am pleased with the quality and ability to spin this pump. I have no noise or resistance from this pump at any degree of rotation. I think it was a great purchase that I definitely don't regret.