has any one replaced it, mine is rattling real bad it is very hot to the touch (the one on the right side) or do i have to replace the whole thing as a unit (both)???
You can't buy small part in US anymore. For 93 model I could buy Power steering pump rebuild kit for $39. For W210 you have to buy whole pump for $600.
If you have time you could pull out the bearing and trying to match it at industrial supply.
Good luck
E 300 Diesel belt adjuster 
Linear Mode
