The book calls for a kind of power steering fluid that I can't find. can I use something else?
power steering fluid on 2006 Mercedes-Benz E350
You need to use the proper kind, otherwise you risk damaging the power steering components, causing thousands of $$ of damage. You should be able to find this fluid at a Mercedes Dealer, or just maybe a Dodge/Chrysler dealer because MB shared a lot of parts between the two companies. Try MB first though.