I have a 1996 S420 and the manual does a very poor job of identifying parts under the hood, and the parts under the hood are either unlabeled or labeling in German. So I was wondering if anyone happened to know where the power steering reservoir was, I would hate to put power steering fluid in the wrong tank. Also if anyone could tell me where the overflow tank is or how to take the plastic cover off of the engine to access the air filter it would be appricated.