Greetings Benz Meisters. Thanks up front for all the great help on this forum. My problem is the steering gets hard, as if the power steering system is giving up, above ~1800 RPMs with the car stopped. Below 1800 it is fine. I don't really know how long it has been like this. I just happened to catch it in the parking lot today. On the highway it seems OK but I can't really turn the wheel enough to know. Can't see any leaks. I changed the fluid a few months ago. Used forum recommended MB fluid. Fluid level is on the low side but OK according to the lines on the little dip stick. This isn,t a show stopper, but I think something is not right. I would like to fix it before it becomes permanent. Hope someone can help.

Thanks, Dan