Bad front suspension balljoints will cause that.
Pretty much anything loose in the steering links could cause that too.
Also happens if there is play in your steering rack.
While parked, is there a lot of play before the wheels react?
Of course, if your mechanic is right, it must be alignment related, or a problem in the rear suspension.
1986 300E 5-Speed 240k mi.
Last edited by csnow; 08-27-2003 at 02:20 PM.