W203 suspension and power steering

[hawaiibenz]

Hi, newbie to the forum

I have 2 issues with an 01 C320. First is a suspension clunk that happens when the front is elevated (speedbump, rapid acceleration, pulling up on front fender) and has had a new strut assembly and sway bar end links with the problem still there. The dealer and one of our third party suspension specialists baffled.

Secondly there is a moaning coming from under the hood of the car and is presumed to be the power steering. It has been in the shop for a couple of days and the people in service can't duplicate it at sea level (it's started every morning at 2000 above sea level). It goes away after 5 or so minutes of driving which isn't enough time to go to the dealer to have them check it out...

any suggestions??

Thanks in advance